Cut without asking, as the owner said on 2026-10-15. A global user sends
one message from postmaster@ the hostname to an address typed; it opens in
the Outbound log, which follows it (the commit before this; mockups
e92769f, e3b2501, 8f0ccf9). Reviewed for security, its low findings fixed.
go vet, go test (26 packages) and make e2e passed on the test server for
that tree. No migration, schema 12.
CHANGELOG [2.12.0]; pins in deploy/docker-compose.yml, README and the guide
(pin, build, the sample restore message); development's "from pin" and
row 38; roadmap row. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Decided by the owner on 2026-10-13 (out of preflight); the sender is his
choice of 2026-10-16 ("Да, адрес годится"); mockups e92769f, e3b2501,
8f0ccf9, the route guard 75f97c9.
Card 09 on Health, in the right stack's static end (the left stack is
polled whole): one recipient and Send. HandleTestMessage (global role)
takes one address (validate.AccountEmail - no list, nothing that reads as
an option), at most ten an hour counted from the send log, writes the
message's send-log row first (store.InsertTestMessage: queued, the
hostname as domain, no application, no queue id), awaits its Message-ID
(logtail.AwaitMessageID) and hands it to sendmail as notifications go
(notify.Mailer.SendWithID: postmaster@ the hostname, signed by the local
socket with the key of the server's own name). The browser lands on the
row; the tailer gives it its queue id from cleanup's message-id= line
(src/cleanup/cleanup_message.c:639) and from then on its delivery lines
its status. Postfix refusing the hand-over removes the row; sendmail out
of time keeps it (postdrop may have queued it). The sweep closes a row
whose id was never seen once it is no longer awaited
(CloseUnmatchedTestMessages); an id awaited past ten minutes is not taken.
Reviewed for security before the commit (2026-10-17): no high or medium;
its three low findings are fixed in this commit (the unmatched row's
close, the awaited id's age, the timeout keeping the row) and the
security.md bullet says how the queue id is matched.
Tests: TestTestMessage (refusals, the row and the page, Postfix refusing,
the hourly ten), TestTestMessageTimeoutKeepsTheRow, TestTestMessageRows,
TestCloseUnmatchedTestMessages, TestAwaitedMessageID,
TestRunGivesTheTestMessageItsQueueID, TestHealthTestMessageCard; e2e sends
one to the sink: the row is sent with a long queue id, the sink has it
signed d=mail.e2e.test. go vet + go test (26 packages) and make e2e on the
test server for this tree.
Docs: help (word for word with the mockup), guide § Overview and Health,
architecture § Log tailer, security.md, CHANGELOG [Unreleased] § Added,
roadmap row done.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15. Server › Health checks
the certificate's name against the hostname, shows Postfix's greeting and
where the panel sees the viewer from (the commit before this; mockups
b2dcefc, cc33890, 0feaa55). go vet, go test (26 packages) and make e2e
passed on the test server for that tree. No migration, schema 12.
CHANGELOG [2.11.0]; pins in deploy/docker-compose.yml, README and the guide
(pin, build, the sample restore message); development's "from pin" and
row 37; roadmap row. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Decided by the owner on 2026-10-13 (in place of preflight), taken up on
2026-10-16; mockups b2dcefc, cc33890, 0feaa55 (his: the greeting on a row
of its own, the name check a tag beside Names).
- The certificate: health.Certificate keeps its names (DNS names, or the
CN without any) and ForHost holds it to SELFPOST_HOSTNAME as a TLS
client does - VerifyHostname over the DNS names, the CN only without
any, as OpenSSL's X509_check_host and so a sending Postfix still take it
(src/tls/tls_client.c:439, 513). A certificate for another name fails;
the tag beside Names says matches / not for the hostname.
- The greeting: postconf -x -h smtpd_banner, read once at the panel's
start like the served certificate's path (main.cf is not rewritten
after), is what smtpd writes after "220 " (src/smtpd/smtpd.c:5979). A
first word other than the hostname warns, with what to set. A fact may
now take the whole row (Fact.Wide, sp-wide) and carry a tag beside its
label (Fact.LabelTag); both on the kit page.
- The proxy: auth.Module.Seen says the address the panel counts sign-ins
against, the peer, and whether X-Forwarded-For was read or left unread
for an untrusted peer; the Configuration card shows "Your address" and,
in the second case, warns that every visitor shares one sign-in limit
and names the /32 (or /128) to put in TRUSTED_PROXY_CIDR.
Tests: TestCertificateForHost (CN-only, DNS names, a wildcard, the CN
ignored beside DNS names), TestSeenAddress, TestHealthSaysWhereItSeesTheViewer,
TestHealthGreetingAndCertificateName; e2e reads the stand's right state on
Health (matches, "220 mail.e2e.test ESMTP", a direct client). go vet + go
test (26 packages) and make e2e on the test server for this tree.
Docs: help (word for word with the mockup), guide § Overview and Health,
CHANGELOG [Unreleased] § Added, roadmap row done.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15. A POST with neither
Sec-Fetch-Site nor Origin is refused (the commit before this); the e2e
client sends Origin. go vet, go test (26 packages) and make e2e passed on
the test server for that tree. No migration, schema 12.
CHANGELOG [2.10.4]; pins in deploy/docker-compose.yml, README and the guide
(pin, build, the sample restore message); development's "from pin" and
row 36; roadmap row. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Agreed with the owner on 2026-10-13 (in place of csrf-tokens), taken up on
2026-10-16 ("Да"). originAllowed (internal/web/security.go) returns false
in the "neither header" branch: such a POST is answered 403 and logged
like a cross-origin one. It was let through until now as an accepted
risk, which left a browser that sends neither open to a request forged by
any site. A browser that follows Fetch § 3.2 never sends a POST without
Origin; one too old to (Firefox before 70) can no longer save anything.
What posts to the panel without a browser: the e2e suite's client, which
now sends Origin on every form (panelClient.postForm); cmd/panel's tests
already did. Nothing else posts to it (the CLI runs in the container).
Tests: security_test's case of no headers is refused; e2e posts with
neither header and gets 403 (testFormPostWithTheBrowsersOrigin). go vet +
go test (26 packages) and make e2e on the test server for this tree.
Docs: security.md - the accepted risk struck, the ADR's decision and
trade-off say refused, the origin-check bullet; architecture § Web,
guide § the proxy; CHANGELOG [Unreleased] § Security; roadmap row done.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15. The full backup and a
domain's export ask for the signed-in user's account password under the
password change's limit; the import's file field is drawn as designed
(1888dce design, the code commit before this). go vet, go test (26
packages) and make e2e passed on the test server for that tree. No
migration, schema 12.
CHANGELOG [2.10.3]; pins in deploy/docker-compose.yml, README and the guide
(pin, build, the sample restore message); development's "from pin" and
row 35; roadmap row. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Agreed with the owner on 2026-10-13, taken up on 2026-10-16 ("Да"); the
mockup is 1888dce. Both secret downloads - the full backup on Server ›
Backup and a domain's export on its settings - ask for "Your account
password": reauth (handlers_backup.go) checks the signed-in user's own
password with bcrypt, as a password change does, under the same limiter
(auth.AllowPasswordChange: ten in fifteen minutes per user, shared with the
Account form). A wrong or missing one is 401 on the same page with "Your
account password is incorrect.", logged; nothing is sent. The import and
the selfpost-backup CLI are not asked.
Also, the owner's phone screenshot of 2026-10-16 ("кнопка выбора файла не
такая, как в макете. Это косяк?"): the import's file field was a bare
<input type="file"> drawn by the browser ("Browse…"), where the mockup has
Bulma's .file - "Choose a file…" and the name chosen. The template now
follows the mockup; panel.js writes the name into .file-name on change and
at load (testdata/filename_test.js, run by TestPanelJS). No other file
field exists.
Tests: TestSecretDownloadsAskForTheAccountPassword (missing, wrong, right,
the limiter), the export refusals of the settings page with the password,
cmd/panel's restore tests and e2e's backups with it, e2e's refusal of a
backup without and with a wrong password. go vet + go test (26 packages)
and make e2e on the test server for this tree.
Docs: security.md § Backup and domain export, guide § Full backup and
restore, help (word for word with the mockup); CHANGELOG [Unreleased];
roadmap row done.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15, after his choice of
2026-10-16 ("Вариант 1 ... сворачивание разделов"). Below 1024 px the
navigation is a Menu whose sections fold, the current one open; the page
has a gutter (e0e30e2 design, the code commit before this). go vet, go test
(26 packages) and make e2e passed on the test server for that tree. No
migration, schema 12.
CHANGELOG [2.10.2]; pins in deploy/docker-compose.yml, README and the guide
(pin, build, the sample restore message); development's "from pin" and
row 34; roadmap row. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The owner, 2026-10-16: "Вариант 1. Но меню выглядит длинной простынёй. Там
бы сделать сворачивание разделов." As the mockup of e0e30e2: the bar's
navbar-menu loses is-active, so Bulma hides it below 1024 px, and the new
touchnav partial (layout.html) takes its place in the brand - Menu, a
<details> whose panel holds Overview, each group as a fold (the current
one open, its page aria-current), and the user's group last with Account,
Help and Sign out (the same POST form as the bar's). The same Show* flags
as the bar decide what is there. panel.css takes the mockup's rules (the
touch navigation, a 1rem gutter for the page and the sibling strip below
1024 px). No script.
The cause, measured, is written in the roadmap row: every width under
1024 px had the always-open menu; "desktop site" (~980 px) added Bulma's
side-by-side columns from 769 px; Bulma's container has no side margin
below 1024 px.
Tests: the Menu marks the current group and page and the bar's menu has
no is-active (TestMenuHighlightsTheCurrentGroupEntryAndSibling), it offers
nothing the bar does not to a domain administrator (TestTouchMenuFollowsTheBar),
the shell's Sign out is counted twice on the password page;
TestPanelCSSIsTheMockupStylesheet. go vet + go test (26 packages) and make
e2e on the test server for this tree. CHANGELOG [Unreleased]; roadmap row
done.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut at the owner's word (2026-10-16): "потом режь" after the check, which
he allowed ("Отправляй").
Inbound › Log says what became of accepted mail - queued, held, sent,
deferred, bounced - with the upstream's last reply, the host and when
(5348330, 295d72e, 46b90d2 design and plan; d515493 code, the reviews'
findings fixed in it). Migration 0012, schema 12.
On the test server as 2.9.1-post.d515493 (the same code), 2026-10-16:
healthy, every program RUNNING, keys unchanged, schema 12. One message
sent from the server to its own port 25 for selfpost@dev.mixdep.ru: its
row sent, "250 2.0.0 Ok: queued as 04F0D1023EF" from mc-ent.mixfed.ru. (The
owner's own message had gone to mc-ent directly: SelfPost is
dev.mixdep.ru's second MX.)
CHANGELOG [2.10.0]; pins in deploy/docker-compose.yml, README and the guide
(pin, build, the sample restore message); development's "from pin" and row
32; roadmap row and recommended order; plan closed. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The owner, 2026-10-16: the Inbound log lacks the upstream's answer - "Не
понятна судьба письма: принято, отклонено, хост не доступен"; the result
in the row only, a page per message later if needed. Mockups 5348330 and
46b90d2, plan 295d72e.
- Migration 0012: inbound_spam_log gains queue_id, upstream_status ('',
queued, held, sent, deferred, bounced; CHECK), upstream_relay,
upstream_reply, upstream_at, and a partial index on queue_id. Schema 12.
- The inbound journal milter writes an accepted row with the queue id of
end-of-message and "queued" ("held" when the filter had it held), the
recipient as Postfix logs it (recipientAsLogged), after detaching older
rows of a queue id Postfix uses again; no queue id, no result.
- The tailer: a delivery line no send-log row took goes to the journal -
status, relay= ("" for none), the reply after the first status=, cut to
255 printable bytes, the line's time; queued/held/deferred rows only,
sent and bounced final. qmgr's expiry makes them bounced, keeping the
last reply. cleanup's "removed (" detaches rows of a message never
queued. Addresses in delivery lines are read by Postfix's quoting
(loggedAddress): a quoted RCPT TO cannot end one early.
- The page: an Upstream column - a plain tag for queued and held, else a
tag opening the host, the reply, when and what follows; "—" for refused
mail and older rows. Help (word for word with the mockup), guide,
architecture, security, schema-migrations, CHANGELOG.
Reviewed before the commit (technical and security, 2026-10-16); the plan
lists each finding and what it became.
Tests: store (results, finality, expiry, held, a reused id, the queue-id
index in every plan), milter (queue id, held, quoted recipient, no {i}),
logtail (relay and reply, a forged quoted recipient, Run hands the journal
what the send log did not take, cleanup's removal), view (the column, held,
null sender), e2e (both relayed messages sent with the sink's 250; an
upstream refusing connections deferred with the reason and no host, then
expired to bounced; the refused row has none). go vet + go test (26
packages) and make e2e on the test server for this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The owner, 2026-10-16: the Inbound log lacks the upstream's answer; the
result in the row only, a page per message later if needed. One stage,
2.10.0: migration 0012, the milter keeps the queue id, the tailer hands
port-25 delivery lines to the journal, an Upstream column (mockup 5348330).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut at the owner's word (2026-10-16, "потом режь 2.9.0").
dns-record-collapse (fffee9c, 51f303c): a record DNS holds as shown is one
line, its values behind Show values. settings-save-row (f95c553,
82a53e1): the Settings form is the left column, Save under its fields.
notification-mail-recheck (98e4dfc, 52a9811, 3f5cd9a): Re-check DNS on
Settings, POST /server/settings/dns-recheck. And the release after 2.8.0
removes /data/opendkim (9420d8c): the entrypoint deletes the 2.7.x key
tree once /data/dkim holds a key, and stops on a /data that never ran
2.8.x.
Each tree passed go vet, go test (26 packages) and make e2e on the test
server; dns-record-collapse and settings-save-row ran there as
2.8.0-post.51f303c and 2.8.0-post.82a53e1. No migration, schema 11.
CHANGELOG [2.9.0]; pins in deploy/docker-compose.yml, README and the guide
(pin, build, the sample restore message; the 2.7.x rollback command keeps
naming 2.7.0); development's "from pin" and row 30; roadmap rows and
recommended order. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The owner, 2026-10-16: "Да, бери notification-mail-recheck". The records
of the server's own name can be checked again where they are shown: Re-
check DNS in Settings' page head (mockup 98e4dfc) posts to
POST /server/settings/dns-recheck (guard 52a9811), global role, which
runs Health's lookups - the server's address, then serverMail(true) - and
returns to /server/settings?rechecked=1, "DNS re-checked.". The
Notification mail box's end slot says when the records were checked
("The server's own name · checked 3 min ago", from the check's
CheckedAt; the old wording while nothing was looked up). A record that
has turned right comes back folded.
Tests: the page head's form and the end slot, and the Settings form
holding neither the re-check nor the right column
(TestSettingsRechecksTheMailRecords); the re-check skips the cache,
redirects and the page shows both records folded
(TestSettingsRecheckAsksForNotificationMailAgain); a domain
administrator gets 404 (globalOnlyRoutes). go vet + go test (26
packages) and make e2e on the test server for this tree.
Docs: architecture.md routes, the panel-redesign plan's route table,
guide § Settings, help (help.go word for word with the mockup's);
CHANGELOG [Unreleased]; roadmap row done. The roadmap's settings-save-row
note no longer claims the left-column form was needed for this - the
action went to the page head.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The owner chose Variant 2 on 2026-10-16 ("форма в левой колонке, кнопка
под своими полями"); the mockup is f95c553. Server › Settings: the form
wraps only the left column - Log retention, Notifications and Save
settings under them - and the right column, outside the form, holds
Notification mail and the read-only Sending rate limits. The boxes are
renumbered column by column (Notifications 02, Notification mail 03,
Sending rate limits 04). The fields, their names and the POST are
unchanged.
Tests: the page's outline matches the mockup's (TestPanelOutlinesMatchMockups);
go vet + go test (26 packages) and make e2e on the test server for this
tree.
CHANGELOG [Unreleased]; roadmap row done, its section quotes the choice.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The dns_record partial draws a record whose tag is "published" and that
has no "In DNS now" (Record.Folded) as a <details> whose summary is the
head - name, tag, "Show values" - with the host, type and value behind
it, as the mockup of fffee9c. Every other record stays a <div>, open.
One partial, so the outbound domain's page, the inbound domain's and
Settings › Notification mail change together; panel.css takes the
mockup's rules, help.go the help's sentence word for word.
Re-check DNS posts and redirects to the page, which is drawn from the
fresh check: a record that has just turned right comes back folded. No
page that draws records polls them, so nothing has to keep a fold open.
Tests: the dns_record partial folds only a published record and closes
the block it opened (TestDNSRecordFoldsOnlyWhenPublished); the mismatch
test reads the folded head. go vet + go test (26 packages) and make e2e
on the test server for this tree.
CHANGELOG [Unreleased]; roadmap row done, its section says what was
decided.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The issue, the PR text and a branch of go-milter (the map emptied on
SMFIC_MAIL, a test that fails on master) are in dev/upstream-pr.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut at the owner's word (2026-10-16, "Выпускай").
The panel signs outgoing mail in a milter of its own (go-msgauth,
relaxed/simple, the login's key on 465/587 and the server's name's on
local mail); OpenDKIM, the syslog relay, the USR1 reload and the From:
parser port are gone. Keys move to /data/dkim (copied once; /data/opendkim
kept for a rollback, left out of backups). The sender check holds Sender:
like From:. go-milter is built patched not to keep every header. The queue
is handed to Postfix's users by name before "postfix check". Commits
005922b..ca3a183 (005922b, faa3c11, c2f63d2, f0dd9f9, 2cfd239, d9d9af3,
0cceb54, 80faf1a, f1d90a2, ca3a183).
On the test server since 2026-10-15 22:48 UTC (2.7.0-post.c2f63d2, now
2.7.0-post.f1d90a2, the same code as this cut): healthy, keys unchanged.
The first rollout (faa3c11) crash-looped five minutes on the queue's owner
numbers and was rolled back; fixed in c2f63d2. The owner's canary: Gmail
dkim/spf/dmarc pass with d=carrel.mixfed.ru, Yandex dkim/spf pass, not
spam; his From:/Sender: check, thirteen cases, all as expected.
CHANGELOG [2.8.0]; pins in deploy/docker-compose.yml, README and the guide
(the guide's rollback command keeps naming 2.7.0 on purpose); development's
"from pin"; roadmap row and recommended order; plan stage 3 closed. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Agreed by the owner (2026-10-16): prepare an issue and a small compatible
PR for go-milter (the map emptied when a message starts), with an option
not to keep it proposed; the owner posts them. Then third_party/go-milter
can go.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
architecture § OpenDKIM becomes § DKIM signing (keys, the selector table
and when it is rewritten, the two sockets, what is signed and the limits,
the old tree); the process table, start order, liveness, the mail-path
diagram, § Sender check, Persistence and the restore Resync follow the
code. security.md: the panel signs with the login's key, the keys are the
panel's alone, group selfpost and CAP_KILL as they are now; OpenDKIM's
accepted risks go; new ones: what sendmail(1) submits is signed as the
server, Sender: is signed but not judged (the owner's decision), and
go-milter keeps every header per session, so the signer's 1 MiB refusal
does not bound the library's copy. guide: Health, the container log's
dkim-signer lines, backups, the long-line limit, and upgrading to 2.8.0 -
with the rollback to 2.7.x: its start reads the queue as its own postfix
(uid 101) before it hands the queue over, so the hand-over by name is run
in the 2.7.x image first (measured on a copy of the test server's queue:
postsuper failed before, passed after). development, README, SECURITY,
product, the assumptions register's header: what left the image.
entrypoint.sh: a comment, the rollback note as the guide gives it. Plan
stage 3 lines ticked, roadmap 12/14.
Written by four agents, one document each, against a brief of what the
code does; reviewed here.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The panel's signer is the only one. Gone: the opendkim package and its
configuration, the syslog-relay and opendkim programs, /dev/log and
/run/opendkim, the reload by USR1 through supervisord
(internal/supervisor/supervisor.go), internal/syslogrelay, the port of
OpenDKIM's From: parser (internal/milter/mailparse.go and its probe,
harness and test/upstream scripts), OPENDKIM_SOCKET and OPENDKIM_DIR.
Keys: internal/domain/keys.go (Keys, NewKeys, DKIM_DIR=/data/dkim) keeps
the keys and writes a selector table, /data/dkim/selectors ("<name>
<selector>"), which the signer reads in place of the KeyTable - it reads
no database, as the sender check reads none. The table is written before
the signer serves (EnsureServerSigned moved there from the notifier).
Keys and table 0600, directories 0700, the panel's. The entrypoint copies
/data/opendkim/keys once, as the panel user, into /data/dkim.new renamed
when whole, and stops the start if the copy fails; /data/opendkim is left
for a rollback to 2.7.x.
Sender check: one RFC 5322 address as a mail program reads it, held
against the bindings; the 256-byte refusal and the texts naming OpenDKIM
go. Allowed() folded the domain through strings.ToLower, which makes the
Kelvin sign a "k" - the comparison with OpenDKIM's reading had hidden it;
it folds ASCII only now.
Health: two dkim-signer rows (applications, notifications) in Milter
sockets, opendkim out of the liveness set; the card no longer takes any
row with a note for the spam filter. Texts as in the design commit.
KILL stays in deploy/docker-compose.yml: measured on the test server,
root without it cannot signal a process of another uid - supervisord
stopping the panel, Postfix's master its children. The plan's "only use
was the reload" was wrong; the comment now gives the real uses.
e2e: one signature, the panel's, verified by dkimpy; the /data/dkim modes;
the OpenDKIM log and process checks, testNeverSignedForAnother and the
cited opendkim, libopendkim11 and libmilter1.0.1 go.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15.
The image runs debian:trixie-slim with Postfix 3.10.13, libmilter
8.18.1, OpenSSL 3.5; every citation re-read against the trixie sources.
smtpd_hide_client_session=yes on 465/587 (owner's decision). The
selfpost group is 10998 and the panel 10999:10999, outside the system
range; the entrypoint re-owns /data by name. The panel's database is
0600; the entrypoint removes symbolic links the panel could leave under
/data. Commits 68ec8b2, 1c6e04b, a3050af.
Rolled out to the test server as 2.6.1-post.a3050af (the same code),
2026-10-15 17:07 UTC: healthy, every program RUNNING, no restarts, three
messages sent, the queue empty, no warning but outside password guessing.
The canary: one message from an application through 465 to Gmail, Yandex
and the test mailbox - Received: in the short form everywhere; Gmail
dkim=pass spf=pass dmarc=pass; Yandex spf=pass dkim=pass, not spam.
No migration, schema 11.
CHANGELOG cut; pin 2.7.0 in deploy/docker-compose.yml, README, guide (and
its sample restore message); development.md "from pin" and the rows of
base-trixie and panel-dkim-signing; roadmap row and recommended order.
No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The signer in the panel's milter with go-msgauth/dkim v0.7.0 (sign.go
read: streaming NewSigner, HeaderKeys over-signing, last-first picking),
relaxed/simple, OpenDKIM's dkim_should_signhdrs[] plus From, the key by
the login's domain and by the server's name for local mail, strict. From
Postfix 3.10.13 milter8.c: multi-line headers come \n-separated, so the
signer rebuilds them with CRLF. disable_mime_output_conversion=yes, unset
until now. The oracle dkimpy (python3-dkim 1.1.8-2 in trixie). Three
stages, 2.8.0. Open for the owner: where the signer runs, the key
directory's name, Health's label.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Security review (1c6e04b):
- The panel's database and its -wal/-shm were 0644 under a traversable
/data, holding the panel users' password hashes and session token
hashes. store.Open now makes them 0600 (SQLite gives the next -wal/-shm
the database's mode: findCreateFileMode(), unixOpenSharedMemory());
TestOpenKeepsTheDatabasePrivate.
- The entrypoint removes a symbolic link the panel user could leave where
a /data directory, table, map, the queue or mail.log is expected, before
its root steps chmod or create them (drop_links).
- The panel user is 10999:10999, outside the system range: in trixie
useradd gave it group 998, the host's systemd-network on the test
server; bookworm's 999 was the host's systemd-journal.
- security.md said the database was 0640; it was 0644.
Technical review (1c6e04b):
- mail_helpers.go: smtp-sink does add a Received: header, "(smtp-sink)"
(smtp-sink.c:520-531); the "(Postfix)" filter leaves it out.
- CHANGELOG/roadmap: OpenDKIM's signing and From:-parsing code is
unchanged, not all of it; the retry-policy bug predates 3.9 (any
postconf warning); three entries moved from Fixed to Changed, as no
released image had them.
- internal/app/sasl.go: db_dump's stdout alone is parsed.
- mynetworks comment: postinst:180, fset_all_changed.
Tests: on the server, make e2e exit 0 (712 s), go vet + go test 27
packages ok.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The runtime base is debian:trixie-slim, the build stage golang:1.26-trixie:
Postfix 3.10.13 with upstream's 2026 security fixes up to the August
batch, libmilter 8.18.1, OpenSSL 3.5. Every citation of another program in
code, scripts and documents was re-read against the trixie sources
(dev/upstream; bookworm's kept in dev/upstream-bookworm) and updated;
development.md's cited-package table holds the trixie versions.
What the re-reading changed in behaviour:
- logtail: reject lines with sasl_method/sasl_username/sasl_sender
(smtpd_check.c:1019-1026); cleanup's "removed (canceled)" forgets a
port-25 id (cleanup_api.c:363-364).
- internal/postfix/retry.go reads postconf's stdout only: since 3.9 a
deprecated-parameter warning on stderr made one value too many and the
panel fell back to the compiled-in retry policy.
- logrotate-loop.sh: logrotate 3.22 exits 1 when it ignores a config;
the loop refuses on that output whatever the status.
- postfix-config.sh: cyrus_sasl_config_path set explicitly (bookworm's
07_sasl_config.diff is gone); maillog_file_permissions=0640; mynetworks
explicit; Dockerfile: SYNC_CHROOT= in /etc/default/postfix,
opendkim-tools dropped, openssl named, systemd-standalone-sysusers so
cron does not bring the whole of systemd.
- The selfpost group is 10998, outside the system range 100-999: in
trixie a package took 998 and the build failed (owner's decision:
a conflict-free id, the distribution's own ids untouched). The
entrypoint hands /data back by name when the user or the group differs.
Guide, backup refusal text, help (design commit 68ec8b2), e2e.
- smtpd_hide_client_session=yes on smtps and submission (owner's
decision): Received: names no client, TLS, login or protocol; port 25
keeps the full header. e2e checks both.
- test/upstream/opendkim-probe.sh makes keys with openssl genrsa.
Tests: on the server, make e2e exit 0 (674 s, the image built on trixie),
go vet + go test 27 packages ok. CHANGELOG [Unreleased], guide,
architecture.md, security.md, roadmap.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15.
The inbound relay's smtp/inet listener sets
smtpd_forbid_bare_newline=normalize, the SMTP-smuggling defence Postfix
3.7.11 leaves off (aaa9412, port25-bare-newline, the first of the three
rows from own-mta-builds).
Rolled out to the test server as 2.6.0-post.aaa9412 (the same code): the
container healthy, every program RUNNING; the server runs the inbound
relay, and postconf -P shows smtp/inet/smtpd_forbid_bare_newline =
normalize next to syslog_name postfix/inbound; no warning or fatal in
docker logs. No migration, schema 11.
CHANGELOG cut; pin 2.6.1 in deploy/docker-compose.yml, README, guide (and
its sample restore message); development.md "from pin" and the row;
roadmap row shipped and the recommended order. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Postfix 3.7.11 leaves its 2023 SMTP-smuggling defence off (default "no"
before 3.9, src/smtpd/smtpd.c:807), and the inbound relay's smtp/inet
listener did not turn it on: a "." line ended by a bare LF ended DATA and
what followed was read as the next transaction. The listener now sets
normalize (bare_lf_mask_table, smtpd.c:1656; the DATA loop drops such a
"." line, 3649-3652), the setting Postfix recommends and 3.9's default.
The submission ports keep the default (own-mta-builds, section 5).
Tests: e2e inbound_bare_newline_is_one_message sends the smuggling
sequence over raw SMTP (net/smtp's DotWriter would rewrite the bare LF)
and finds one message at the upstream with the smuggled part inside;
port25 config check asserts the parameter on smtp/inet. On the server:
make e2e exit 0 (511 s), go vet + go test 27 packages ok.
Docs: CHANGELOG [Unreleased] Security, security.md, architecture.md,
guide.md; roadmap: port25-bare-newline, base-trixie and
panel-dkim-signing agreed by the owner in this order.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
docs/own-mta-builds-2026-10-15.md weighs patched builds of Postfix and
OpenDKIM against what the panel works around. No Postfix limit needs a
patch (the panel reads it through the interfaces it offers); every limit
worked around is OpenDKIM's, a project with no release since 2018, three
2026 CVEs open in every Debian suite and no one answering (read in
dev/upstream: dkim_process_set runs on a tenant's DKIM-Signature header
in signing mode too). Bookworm is in LTS since 2026-07-12 and its Postfix
3.7.11 lacks the June, August and September 2026 upstream security
batches, which carry no CVE ids.
Proposed as candidates: port25-bare-newline (smtpd_forbid_bare_newline
defaults to no on 3.7; our smtp/inet block does not set it), base-trixie
(postfix 3.10.13; 331 citation lines to re-read), panel-dkim-signing
(go-msgauth/dkim in the panel's milter; OpenDKIM, the syslog relay and
the parser port removed, about 1,500 lines).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
The last stage of the 2026-10-12 audit; no cut.
Doc drift: architecture.md (the sender check in § OpenDKIM, the limit:
row's 48 hours, the inbound log and filter-list routes and who may open
them, migrations to 0011 and every table, KitPage as production data,
Reload configuration as a restore writes, the panel's roles counted),
schema-migrations.md (tables and columns since v2), guide.md (a delivery's
lines go at the next prune; INBOUND_JOURNAL_MILTER_SOCKET moved to
architecture.md's internal list), development.md (the env guard, the
deferral the e2e proves, its fixed sleeps), roadmap.md.
Comments say what the code does now; TestBaselineIsTheOnlyMigration is
TestChainStartsAtTheBaseline; the milter package doc names its three
milters.
Dead code gone: view.Facts, dmarc HostedSuggestion and
ValidateHostedAddress, app UpdateMode (each with the test that alone kept
it), the method checks the method-bound routes made dead;
Settings.WithResult calls resultFlash. staticcheck 2026.1 in test.yml on
both modules, clean: the e2e package builds without its tests now (a test
and two constants moved out of non-test files), three findings fixed.
The test moved, TestImageBuildPreservesLogrotateMode, had sat in a
non-test file and never run; run, it failed on the entrypoint (docker run
without a hostname) and now asks with --entrypoint stat.
The test gaps no step named, each closed: follow() with mail.log gone past
blindMin and made again; CheckRestore with a manifest that is not JSON;
the origin check with a port; every /server/ pattern in web.go through
server() and in the routes table (it found GET /server/health/fragment
missing from the table - guarded, not tested); L9 as the owner decided it
on 2026-10-12, the comment on senderSession.Headers and the test passing
an h that holds the earlier messages' From:.
Plan stage 6 ticked; roadmap audit row done, 81/81.
Tested on the test server: go vet + go test of 27 packages, make e2e (all
pass, 513 s) on this tree; staticcheck locally on both modules.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15.
The supervisord socket is root:supervisor, the panel the group's one member
(M17). Postfix takes TLS 1.2 at least, the client too where TLS is
required; VRFY off; the banner without the distribution; the start refuses
a rate, size or milter timeout that is not a number, under its minimum or
past an int (L31). OpenDKIM logs through the syslog relay to the container
log and oversigns From: (L30). crashexit takes the container down after
five unexpected exits of a mail-path program in ten minutes (L32).
logrotate keeps its state under /data/log. extract-cert.sh refuses what is
not PEM and renames whole files (M21). Plus the findings of both reviews
(a39eda5). Commits dab7715, a39eda5, b09e525.
Rolled out to the test server as 2.5.4-post.95af363 (the same code): the
container healthy, every program RUNNING, syslog-relay among them;
OpenDKIM's start line in docker logs under "syslog: "; the postconf values
as set; /run/supervisor.sock root:supervisor 0770 and the panel reaches it;
/data/log/.logrotate.status written. No migration, schema 11.
CHANGELOG cut; pin 2.6.0 in deploy/docker-compose.yml, README, guide (and
its sample restore message); development.md "from pin" and the stage's row;
roadmap row and recommended order; stage 5 marked shipped in the plan. No
tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The owner asked on 2026-10-15 whether our own builds would lift limits we
work around; recorded as a candidate for analysis with the starting points:
the limits met so far, for, against, and the middle ways to compare.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- The e2e's numeric-settings test ran a container that passed every gate
and never ended: the good values are checked beside a bad one after
them; each run is named, bounded to a minute and removed.
- The gates refuse a value under the parameter's minimum (a zero window
kills anvil, a zero milter timeout smtpd) and one past an int, in
seconds for a time value (src/global/conv_time.c, src/anvil/anvil.c).
- OpenDKIM waits, five seconds at most, for the relay's socket.
- The relay marks its lines `syslog: `, writes control characters out,
reads into a queue at once and drops past 200 lines a second, saying
how many (security F1, F2; a stuck relay would hold OpenDKIM in
syslog(3)).
- smtp_tls_mandatory_protocols >=TLSv1.2 too.
- extract-cert.sh keeps the old files' group and sets its trap before
mktemp.
- crashexit spares cert-reload; architecture.md "four times running" and
what else exits the container; security.md the restart after five panel
exits and the /dev/log socket.
- Measured against the technical review: smtpd has the selfpost group
(Groups 104 998), so it did reach the supervisor socket before this
stage.
Accepted, reasons in the plan: the logrotate state file in the postfix
user's directory, envdoc_test's reading of `${VAR:-}` only, crashexit's
window pruning untested.
Tested on the test server: go vet + go test of 27 packages, make e2e (all
pass, 592 s) on this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15.
Signing in costs the same for an unknown name (M8) and ends the session the
browser presented (L16); the Account password check has its own limit
(L15). The HTTP server bounds the request, the answer and idle connections;
the full backup moves its own deadline (L14). Monitoring refreshes are
scheduled from htmx:afterRequest with a back-off and a 30 s timeout, and a
lost session sends htmx to sign-in (M11). The Outbound log clamps its page
(L10) and filters by status and day; the multiplier refuses NaN (L11); a
rate-limited refusal is red (L18); Recalculate asks before it drops an
unsaved edit (L19); Reload configuration writes what a restore writes and
removes the keys of deleted domains (L13, L17). The cards layout orders by
number. A notification is owed to each recipient (migration 0011). A DNS
outage is unknown, each resolver with its own time (M14, M15). DMARC
reports too large are refused for their size. An inbound upstream has one
TLS mode, changed for all its domains (L5). Plus the findings of both
reviews (eaa7de0). Commits 07be0cf, 643892a, ca876c1, 80e3979, 2b8e0c0,
b90a2f0, eee089a, 006bed7, 32dfe4a, eaa7de0.
Rolled out to the test server as 2.5.3-post.eaa7de0 (the same code):
migration 0011 applied, schema 11; all programs RUNNING, the container
healthy. Resync's key cleanup checked against the live data: every key
directory is a domain's or the hostname's, nothing to remove.
CHANGELOG cut; pin 2.5.4 in deploy/docker-compose.yml, README, guide (and
its sample restore message); development.md "from pin" and the stage's row;
roadmap row and recommended order; stage 4 marked shipped in the plan. No
tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
M14, M15: queryEach gives each resolver 2 s within the check's context and
asks the one that answered last first; an address or PTR lookup not
answered is Unknown, an answered mismatch beside it still an error;
Checker.Server keeps the last answer's addresses, so SPF does not go Unknown
with it. Notifications report faults only, now tested with SPF unknown
alone and beside a wrong DKIM.
DMARC reports: tests of malformed XML, gzip and zip bombs, a message over
the limit, the service's Resync, hosted suggestion and validation. The
finding: both limits cut silently and an oversized report failed as
damaged; readAtMost refuses it for its size (MaxMessage 10 MiB, moved into
IngestMessage).
healthReadings replaces map[string]any for Health and Overview.
L5: an inbound upstream has one TLS mode - a second domain to the same
[host]:port with another mode is refused, naming the first; the TLS policy
map holds each next hop once.
Tested on the test server: go vet + go test of 25 packages, make e2e (all
pass, 631 s) on this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The cards layout (owner, 2026-10-13; the mockup first, b90a2f0): box_open
writes data-order for a box with InCards and a number, and panel.css orders
by it up to twelve - Health's eight and the kit's three.
TestCardsBoxesCarryTheirNumberAsTheirOrder reads the rendered pages.
Notifications (owner, 2026-10-14): migration 0011, notify_addressees. open
sends a subject's first message to every recipient and records who was
handed it; followUp, on every check while the subject is open and still
wrong, hands it to the owed and untold who are still recipients; closed
sends the end to the told (all recipients for a subject from before the
table). Tests: a failed copy goes out at the next check, once; the hourly
ceiling holds one back; a user added mid-subject hears nothing of it.
Also in the roadmap, from the owner today: dns-record-collapse,
notification-mail-recheck, settings-save-row (agreed, design first).
Tested on the test server: go vet + go test of 25 packages, make e2e (all
pass, 644 s) on this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
L17: past DeleteDomain both rebuilds run, their errors joined under
domain.ErrDeletedIncomplete; the key is removed only when OpenDKIM's tables
were rebuilt (they may still name it otherwise); the domain list says the
domain is deleted and that Reload configuration finishes it, not "internal
error". Tests in domain (the tables failing, the sender map failing) and
handlers.
The Outbound log's status and day filters (owner, 2026-10-13; the mockup
first, 80e3979): view.OutLogFilter carried by the poll, the pages, the rows'
links and the message's way back; SendLogFilter.Status, Since, Until (whole
UTC days, as the Inbound log's); rejected is the three refusals together; a
status not in the list is no narrowing. Tests: the filters through the
handler, the poll and the way back; the day boundaries in store.
The plan's milter-socket step is ticked: done in 2.5.2 (98e09fe).
Tested on the test server: go vet + go test of 25 packages, make e2e (all
pass, 642 s) on this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Step 4 of stage 4 (L10, L11, L13, L18, L19 and a row of
review-2026-08-followups):
- The Outbound log counts first and clamps the page to the last; a number
too large for an int (strconv's ErrRange with the largest int) is the
last page on both logs. Tested at the edges: first, last, past the last
however far, nonsense, an empty log asked for page 5.
- checkAutoMultiplier is "not within", so NaN and the infinities are out.
- rate-limited is red (components.go; the mockup first, 643892a).
- data-unsaved on both recalculate buttons: panel.js asks on submit
(ev.submitter) when a field of the page differs from what it was drawn
with; testdata/unsaved_test.js under TestPanelJS.
- HandleReload writes what a restore's first start writes - the filter
lists and the DMARC maps too - and a failed step is an error flash on
Health that names it, not plain text; the success flash says what was
written.
Tested on the test server: go vet + go test of 25 packages, make e2e (all
pass, 695 s) on this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Steps 1-3 of stage 4, tested together (their docs share files).
Step 1 (M8, L15, L16): an unknown name pays a bcrypt comparison at the
panel's work factor too (noSuchUserHash, made once) -
TestLoginTakesAsLongForAnUnknownName holds the medians within a factor of
two; the Account form's current-password check has its own limiter, per
user (AllowPasswordChange); a sign-in destroys every session the request
presents before it issues its own.
Step 2 (L14): newHTTPServer - ReadTimeout 30 s, WriteTimeout 60 s,
IdleTimeout 2 min beside ReadHeaderTimeout; the full backup moves its write
deadline to two hours through http.ResponseController (e2e: the log shows
no failure to move it).
Step 3 (M11), read in htmx 2.0.4's source (dev/upstream/htmx-2.0.4, the npm
build byte-equal to the shipped htmx.min.js): the poll passes source: box,
and the next refresh is scheduled from htmx:afterRequest, which htmx fires
on load, error, abort and timeout, and after a swap on the nearest parent
left (the box found by detail.target's id); failures in a row double the
wait to 60 s. RequireAuth answers htmx with 401 + HX-Redirect: /login,
which htmx follows before it looks at the status. testdata/poll_test.js
runs panel.js in node against a stand-in DOM and clock (TestPanelJS; skipped
without node, which the test server lacks - run here, and it fails on the
old panel.js).
Also measured: the stage-3 e2e regression for H1 fails as it should on HEAD
with the old entrypoint ("check data/postfix/e2e_extra_map: permission
denied", the panel restarting).
Tested on the test server: go vet + go test of 25 packages, make e2e (all
pass, 639 s) on this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cut without asking, as the owner said on 2026-10-15: "Вопросы про резку не
задавай, просто режь."
A restore is ended by its Resync: the manifest stays until the first start
has regenerated the maps (M1). Every archive ends with data/contents.json and
the first start after a restore compares /data with it before it opens the
database: half an archive, a damaged file, a journal left beside the
database is refused, named. The entrypoint hands every map under
/data/postfix to the panel (a restore unpacked as root left the DMARC maps
unreadable - found by the review). Migration 0010: the send log's sweep,
refusal-line check, level-2 count and pages each by its index, pinned by
EXPLAIN tests on the statements the store runs (M2). The backup CLI refuses
a missing database (M3) and a password under 12 (M5), writes -o whole,
checks -decrypt's password before the output (L1), warns of what it leaves
out and refuses an empty certs/ (L2). An encrypted file may ask scrypt for
128 MiB at most, r <= 64, p <= 2, and nothing may follow its last chunk
(M4, L3). TRUSTED_PROXY_CIDR's bare ::ffff:a.b.c.d is one host (L4). Maps
are durable across a power loss: the directory is synced (L7). Commits
8e3241e, 508ac96, 242515c, 76b21b3.
Rolled out to the test server as 2.5.2-post.76b21b3 (the same code):
migration 0010 applied, schema 10, the four new indexes present; all
programs RUNNING, Postfix with its three milters, nothing in the logs. On
the live container: a CLI backup ends with data/contents.json, a wrong
SELFPOST_DB_PATH is refused and creates nothing, a short password is
refused.
CHANGELOG cut; pin 2.5.3 in deploy/docker-compose.yml, README, guide (and
its sample restore message); development.md "from pin" and the stage's row;
roadmap row and recommended order; stage 3 marked shipped in the plan. No
tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Steps 3-6 of stage 3 and what the two reviews found in steps 1-6, in one
commit: the review fixes sit in the same hunks.
Step 3, CLI backup (M3, M5, L1, L2; L4 of the stage's list):
- backup.snapshotDB refuses a database that is not there and opens the
source mode=ro (measured: mode=ro creates no file).
- selfpost-backup holds an encrypting password to
validate.MinSecretFilePasswordLen; -o of both directions writes a
temporary file beside the name and renames it whole; -decrypt peeks the
first chunk (password and type authenticated) before the output exists.
- what a backup leaves out (a link under data/, a link under certs/ to a
directory, a socket...) is told to OnWarn; certs/ with no file is
backup.ErrNoCerts, refused by Check and Create, named by the panel.
- parseTrustedProxies: a bare address takes /128 when written with a
colon (::ffff:10.0.0.1/32 was ::/32).
Step 4, secretfile (M4, L3): scrypt's V at most 128 MiB, r <= 64, p <= 2;
bytes after the last chunk are ErrCorrupt.
Step 5 (L7): atomicfile.SyncDir after the rename, used by Write,
replaceSASLDB and the CLI; atomicfile_test.go.
Step 6: security.md and guide on backup and restore.
Reviews (technical, security):
- H1: a restore of a server with DMARC on was refused on every start - the
archive records no owner, tar as root left the DMARC maps root's, and the
entrypoint only chowned the maps it named. It now hands every file beside
queue/ in /data/postfix to panel:selfpost 0640; e2e writes an extra map
before the backup and finds it panel:selfpost 640 after a root unpack.
- the comparison reads regular files only (Lstat, size, LimitReader); a
record unpacked again wins over the earlier check's mark; ConsumeRestore
removes both; the mark is synced; a journal file beside a freshly unpacked
database is refused.
- AttachRefusalLine refuses an empty line as the old statement did; skipped
entries named in words; -decrypt of an empty payload is no failure; guide
wording on the shell's '>' and a killed CLI; the in-place restore's
'mv .' (older than this stage) fixed.
Tested on the test server: go vet + go test of 25 packages, make e2e (all
pass, 643 s) on this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Migration 0010 (DDL only; 0009 went to stage 2b). EXPLAIN QUERY PLAN of
every send_log statement showed, beyond M2 as written (stage 2 had already
moved the by-domain counts onto (domain_id, created_at)):
- the tailer's sweep of open rows (every 5 min) and its count scanned the
table: partial idx_send_log_open (created_at) WHERE status IN ('queued',
'deferred'), the statuses literal in the statements, ORDER BY +id (else
SQLite walks the table in id order to skip a sort);
- AttachRefusalLine's NOT EXISTS (... refusal_line = ?1) scanned the table
for every refusal line: partial idx_send_log_refusal_line, the query
carrying the index's WHERE; its row found by idx_send_log_rejected
(status literal, +queue_id) instead of every refusal without a queue id;
- an application's level-2 count went through its domain's index:
+domain_id in appByLogin;
- a page of one domain's or one application's log sorted all of it:
idx_send_log_domain_id, idx_send_log_app_login (id order; several domains
still sort, top-N). idx_send_log_domain stays for the global filter.
The statements are constants and builders (countMessagesQuery,
peakPerHourQuery, listOpenQuery, countOpenQuery, sendLogPageQuery,
attachRefusalLineQuery, limitRefusalsQuery) and
TestSendLogQueriesUseTheirIndexes explains exactly those: the index each
must use, no SCAN of send_log, no sort where none is wanted; the literal
statuses checked against the constants. It replaces the hand-written plan
check of TestLimitRefusalsSince.
Tested on the test server: go vet + go test of 24 packages, make e2e (all
pass) on this tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The restore manifest was consumed as soon as its version was checked,
before store.Open and the Resync; a start that failed in between left a
data directory the next start took for an ordinary one (M1). openData now
runs CheckRestore, store.Open, the Resync, and only then ConsumeRestore.
A truncated archive had nothing to refuse it: the manifest is the first
entry, so a download cut short or a tar stopped by a damaged block was a
restore on half a database. Every archive now ends with data/contents.json,
the size and SHA-256 of each data/ file (deploy files are the operator's to
edit), and CheckRestore compares /data with it before the database is
opened, then renames it contents.checked.json so a start after a failed one
does not compare again unless the manifest changed.
Tests: a start whose Resync fails, then a start that resyncs and consumes;
an archive cut in the database, before the deploy files and in its last
entry (refused, database untouched, no -wal); a damaged key named; the
record's names confined to data/; the domain import of a cut plain export,
a cut and an altered .spde (refused, nothing created). e2e on the test
server: full_backup_restore now also sees contents.json in the archive and
gone after the first start, through the real entrypoint and daemons (all
pass, 762 s); go vet + go test of 24 packages pass there.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The owner's word, 2026-10-15: "Да, режем."
Every place SelfPost relies on another program was read in that program's
source, of the version the image runs, and is cited in the code (621
entries, docs/assumptions-2026-10-14.md); what the sources contradicted is
fixed: rspamd signing a sender's own verdict, the sender map's first key,
queue expiry and Postfix's time values, refusal and recipient lines as
Postfix writes them, the rotated log read until postlogd lets it go,
inbound mail over 10 MB, local delivery to an address literal, supervision
(Postfix stopped, give-ups FATAL, the reload's exit read), sasldb2 through
a copy, Health dialling sockets and showing the certificate Postfix
serves, Referrer-Policy same-origin, migrations under BEGIN IMMEDIATE,
certbot's links followed, about forty sentences of the documents, and ten
measurements on the stand. The sender check reads From: with OpenDKIM's
own parser, ported and checked against the C and against OpenDKIM's
signing; L8 is closed; an address OpenDKIM would cut short is refused.
Plus the findings of both reviews of the stage (9eddd49).
Rolled out to the test server as 2.5.1-post.9eddd49 (the same code): no
migration, schema 9; all programs RUNNING, the container healthy,
Postfix with its three milters, nothing in the logs.
CHANGELOG cut; pin 2.5.2 in deploy/docker-compose.yml, README, guide (and
its sample restore message); development.md "from pin"; roadmap row and
recommended order; stage 2c marked shipped in the plan. No tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The last check of the port, and the plan's last line of stage 2c. Through
Postfix the sender check refuses most lines before OpenDKIM sees them, so
TestPortAgainstOpenDKIM (internal/milter) talks to OpenDKIM directly:
test/upstream/opendkim-probe.sh starts OpenDKIM from the SelfPost image in
a throwaway container, with keys and a refile SigningTable for three
names, and the test plays it each From: line through go-milter's client,
as a client OpenDKIM trusts (127.0.0.1, InternalHosts' default). For each
line the d= of the signature OpenDKIM adds must be the domain the port
predicts - its address, the domain cut to DKIM_MAXHOSTNAMELEN, the whole
cut to MAXADDRESS, matched against "^.*@<domain>$" case-insensitive as
dkimf_apply_signtable() matches - or neither signs.
Run on the test server, 2026-10-15 (OpenDKIM Filter v2.11.0 from the
image): 385 lines - both shared files and lines composed from display
names plain, quoted, escaped and encoded, comments nested and open,
groups, lists, brackets, source routes, domain literals and quoted local
parts, with the other sender's name and the server's in each place - 385
agree, 287 signed. The two lines padded so that, cut at 256 bytes, they
end in "@other.e2e.test" are signed by OpenDKIM with other.e2e.test's key:
the danger the sender check's 256-byte rule (3584adc) closes is real, and
the test now asserts it.
Measured while writing it: OpenDKIM answers a step it is done with by
accepting the message and then nothing more, and go-milter v0.4.1's client
needs read timeouts set in ClientOptions (the defaults apply only to its
default options) - the probe reads every step's action.
The differential test of the parser and this probe are now scripts in the
repository, test/upstream/mailparse-diff.sh and opendkim-probe.sh, both
run from it on the server: 200 019 lines agree with the C, 385 with the
signing. go vet and go test ./... pass on the server (24 packages). Stage
2c's plan lines are all ticked; roadmap 49/81.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Audit 2026-10-12, stage 2c, the owner's decision of 2026-10-14: the check
decides by the address OpenDKIM signs for, whatever a display name or a
comment holds.
internal/milter/mailparse.go ports libopendkim's dkim_mail_parse() with
dkim_mail_first_special(), dkim_mail_token() and
dkim_mail_matching_paren() from Debian's opendkim 2.11.0~beta2-8+deb12u1,
line for line: the '<' form, group and list punctuation, an '@' before the
first ':', ';' or ',' deciding where the address starts, source routes
dropped, quoted strings and domain literals kept with their delimiters,
comments skipped, whitespace between atoms one space, no encoded word
decoded; and the C's own quirks ("@d" gives d as the local part too).
testdata/mailparse_harness.c compiles the C from the image's source; the
test feeds it and the port 200 019 lines (the hand-written cases and
200 000 random ones over the specials) - 93 443 parse and agree byte for
byte, 106 576 fail and agree on the error (on an error the C leaves its
in-place result unterminated, and OpenDKIM uses neither part then).
judge(): one From: field and one address stay required (moreAfter: only
list or group punctuation may follow); what OpenDKIM cannot read is
refused (mlfi_eoh() would not sign it); the address is lower-cased in
ASCII only, as dkimf_lowercase() and Postfix's tables do. Found reading
dkimf_apply_signtable(): OpenDKIM matches its refile SigningTable against
"user@domain" printed into MAXADDRESS + 1 = 257 bytes, so a longer address
is matched cut short - a quoted local part padded to end there in
"@another.tenant" would be signed with that tenant's key while its real
domain is the application's. Such an address (over 256 bytes) is refused;
one that fits is matched whole. The display-name and comment scan, the
"one @ outside quotes" rule and the SigningTable reader (Signers) go; the
check asks for header values with their leading space as OpenDKIM does
(OptHeaderLeadingSpace; Postfix keeps a v2 milter's event mask, milter8.c
milter8_negotiate()).
L8 closed: refused or passed no longer depends on other domains of the
server; security.md's accepted risk is struck. The shared other-sender
lines are now held to "never signed for the other sender": unit test (a
passed line is read at the application's domain) and e2e (a passed line
arrives signed for the application's domain, none for the other).
Documents: architecture "How the header is read", security's sender
check paragraph, the guide; the help topic per 2cf118c.
Stand (2026-10-15, make e2e, exit 0): sender_check_holds_the_from_line -
another sender's address in the display name now passes; a From: whose
quoted local part is padded so that, cut at 256 bytes, it ends in
"@other.e2e.test" is refused 550 5.7.1 "the address is longer than
OpenDKIM reads whole"; lines_naming_another_sender_never_signed_for_it
and passed_from_lines_signed_for_their_domain_only pass. go vet and go
test ./... pass on the server (24 packages); the differential test ran
there against the compiled C.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
All 2026-10-15; each written beside the code or text it settles.
- A-43: /usr/sbin/postlog is -rwxr-xr-x root:root in the image (postfix
3.7.11-0+deb12u1; dpkg-statoverride lists postdrop and postqueue only):
Debian does not install it set-gid, so it is no use to dmarc-ingest
(cmd/panel/dmarc_ingest.go).
- C-X1: OpenSSL 3.0.22 in the image prints the same public key from
`x509 -pubkey` and `pkey -pubout` for RSA-2048, P-256, P-384 and a SEC1
P-256 key - cert-reload's same_pair holds for certbot's ECDSA keys.
- C-K5, D-guide:933/:233: on the live server (Docker 29.6.1, userland
proxy on 0.0.0.0 and ::, no IPv6 on the network) an outside IPv4 client
and the host's own public IPv4 address are logged as themselves; the
host's IPv6 address and 127.0.0.1 arrive as 172.18.0.1. Over IPv6 every
client is the gateway: one level-1 budget, an application IP list cannot
name them, rspamd sees the gateway. Guide paragraph under level 1, notes
at the milter and allow-list, comments at the anvil setup and authip.go,
and a Security entry in the CHANGELOG (an allow-list naming the gateway
would admit every IPv6 client).
- D-guide:61: a published port nothing listens on (a throwaway container,
-p 20999:25) is refused from outside over IPv4 and from the host's public
IPv4, accepted and closed through 127.0.0.1 - Docker's proxy, which IPv6
goes through too (not probed over IPv6 for this).
- C-M8: the live installation has received one DMARC report, of one
record: nothing to set maxReportRecords by yet - said at the constant.
- D-S7, D-arch:516, D-arch:532: a new database filled through the store to
120 days at 1 900 messages a day (228 000 messages, 1.37 million lines,
464 MB) on the test server (2 cores): the longest write is the line prune
after a 30-day gap, 1.9 s for 342 000 lines (0.4 s with nothing to
delete); the send-log delete 0.6 s; 2 000 lines of a tailer pass 18 ms;
VACUUM INTO 1.7 s; a second connection writing every 50 ms waited 1.8 s
at most, no SQLITE_BUSY - inside busy_timeout's 5 s. architecture.md's
"about a second per million lines" was five times too fast; its "six to
ten lines of 200 bytes" is 6.0 lines of 146 bytes on the live data.
- D-B16: which favicon is fetched, by the probe server's log: Edge 155
the SVG, the desktop app's embedded Chromium 152 the PNG, with or
without sizes="any" - layout.html's "vector wins where supported, raster
catches the rest" holds; Firefox and Safari not measured.
- D-arch:121: the allow/deny trial again, in rspamd/rspamd:3.11.1-3 with
today's multimap.conf: every mix of allow and deny entries matching one
message ended reject; a changed map was used about 10 s later.
- D-sec:424: rspamd runs as _rspamd, uid 11333; the panel is uid 999.
Stand: go vet and go test ./... pass on the server (24 packages); make
e2e exit 0.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Code and config:
- C-M7: a DMARC report's explicit <pct>0</pct> stays 0; only an absent
pct takes RFC 7489 § 6.3's default 100 (Pct *int).
- C-D1: docs/development.md now tables the Debian versions the citations
were read at (postfix 3.7.11-0+deb12u1, opendkim and libopendkim11
2.11.0~beta2-8+deb12u1, libmilter1.0.1 8.17.1.9-2+deb12u2, libsasl2-2 and
sasl2-bin 2.1.28+dfsg-10, supervisor 4.2.5-1, logrotate 3.21.0-1 - read off
the image with dpkg-query, 2026-10-15); the e2e stand's new
checkCitedPackageVersions fails when the image it built differs.
- C-E2: the e2e zone's SOA serial only grows (CoreDNS v1.14.6's file
plugin reloads on a grown serial, not on mtime); Corefile comment says
so; TestZoneSerialGrows.
- C-K8, C-K9: the e2e compose and stage comments say how
--project-directory and .env resolve.
- D-arch:154: postfix-config.sh's "Postfix insists" comment says what
TLS_README advises and that smtpd reads the key as root.
- B-G7: inflight.go's reservationTTL comment: a dropped client does give
ABORT (smtpd_proto() -> mail_reset() -> milter_abort()); the TTL is for
smtpd dying or the milter connection breaking.
- D-guide:301: the nginx fragment's first-certificate command now reaches
certbot (--entrypoint certbot, --standalone, port 80 free), and the
renewal loop passes --webroot -w /var/www/certbot - a standalone
certificate would otherwise renew standalone while nginx holds port 80
(certbot docs, "Renewing certificates": the issuing plugin is used
"unless you specify other plugins or options", and options of a
successful renewal are saved). The register's proposal missed that.
Documents: every D-arch, D-guide and D-sec claim the register's Answers E
found false or partly true, rewritten - by three Sonnet agents, one per
document, then reviewed: two proposals were obsolete after this stage's
fixes and not used (a bounce's From: line - extract_from = "smtp" now;
"Origin: null" - Referrer-Policy is same-origin now); a stand
observation the agent had dated from a commit is now tied to the e2e test
that checks it; the SQLite writers paragraph describes _txlock=immediate;
the log tailer's rotation paragraph describes the minute's grace; the
guide's nginx steps were put in working order (links and modes before
`up`, no reconfigure step). "Deferred" is kept for Postfix's queue in the
guide too. guide.md's CRLF from the agent normalised.
Stand (2026-10-15, make e2e, exit 0, the version gate and zone serial
test included); go vet and go test ./... pass on the server (24 packages).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
mixandClaude Opus 5.5