Commit Graph
26 Commits
Author SHA1 Message Date
mixandClaude Opus 5.5 c817f0833c from-header-binding: what the reviews had left as found, and address extensions
test / test (push) Canceled after 0s
The owner on the three things the reviews' commit left as found: can they be
fixed? They can.

- Downtime that crossed a UTC midnight was all booked on the day of the
  restart: it is cut at the midnights between (byDay).
- A message with the null envelope sender - a bounce an application writes
  itself - left a refusal row without a domain, which no domain
  administrator would see: the row takes the domain the login is bound to.
- A log read again after an unclean stop counted its deferrals again: while
  the tailer catches up, a warning no later than the last one counted is
  passed over. The mark is kept to the fraction of a second the log gives.

And on the check being stricter than Postfix for an address with an
extension (invoices+x@ passed in the envelope, was refused in the header):
it makes Postfix's second try now, the address without its extension.
recipient_delimiter was the distribution's default; it is set in
postfix-config.sh, since the check depends on it. e2e sends one through.

Test server, this tree: go vet ok, go test 23 packages ok, make e2e ok (339 s).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 21:29:17 +03:00
mixandClaude Opus 5.5 89fd0a6116 from-header-binding: findings of the technical and security reviews
test / test (push) Canceled after 0s
Both reviews were of c171fb5, read-only, given the code and questions.

Found by both, and the one that would have refused ordinary mail from the
first day: a folded From: line - what a mail library makes of a long display
name - did not parse and was refused with 550. The line is unfolded before it
is read. e2e sends one through Postfix now.

Technical (Opus)
- A display name in a charset Go does not convert (windows-1251, koi8-r) was
  refused: such a name is passed through unread, only the address is judged.
- The statistics ran between binding the socket and serving it, with a
  supervisorctl that has no timeout: they are kept beside the check now and
  nothing of them is waited for. A supervisorctl that fails is logged.
- The count of deferred mail followed smtpd's reject lines and so missed a
  check that stops answering in the middle of a message, where cleanup
  writes them: it is taken at Postfix's warning, the line that names the
  socket. The test line for that case had been invented with the wrong
  process; it is marked as composed from Postfix's source.
- A card whose figures could not be read showed zeros and "ok": dashes and
  "unknown".
- entrypoint removes the sockets a killed container left, which satisfied
  the wrapper's wait before the check was listening.
- Outside quoted strings the line may hold one "@" only - a rule that needs
  no knowledge of OpenDKIM's parser.
- Comments that still spoke of two sockets, or of a session replaced after a
  refusal; the limits of the cards layout on a phone, said where it is defined.

Security (Fable; no Critical or High)
- Another sender's name in an encoded display name passed the second look:
  the decoded name is looked at as well.
- A client could arm the deferred counter by sending the socket's name where
  Postfix quotes it in a warning: the two warnings are matched from their
  first word.
- A refused message wrote a row per recipient: one row, naming the first
  recipient and how many more.
- Docs: the check's lookup is stricter than Postfix's for address extensions
  and the case of logins, rather than "cannot disagree"; what a display name
  looks like to a person is not promised; the timeouts and the 454 at AUTH
  stated as they are; "messages" are connections turned away.

Left as found, in the plan: downtime that crosses midnight is booked on the
day of the restart; a message with the null envelope sender leaves a row
without a domain; a log read again after an unclean stop counts again.

Test server, this tree: go vet ok, go test 23 packages ok, make e2e ok (330 s).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 20:06:02 +03:00
mixandClaude Opus 5.5 c171fb5bc7 from-header-binding: the sender check, what it costs, its pages; guide, architecture, security
test / test (push) Canceled after 0s
A message's From: line is held against the application that sends it, under
the rule Postfix holds the envelope sender to. OpenDKIM chooses the key by
that line, so until now an application could have mail signed as another
domain of the server or as the server itself.

The check (internal/milter/sender.go)
- A role of the panel on a socket of its own (SENDER_CHECK_SOCKET), first in
  smtpd_milters and strict: default_action=tempfail. The journal milter keeps
  its socket and stays fail-open. postfix-wrapper waits for the new socket.
- It reads no database: what an application may send as comes from Postfix's
  own sender_login_maps, what the server signs for from OpenDKIM's
  SigningTable. Both are read again when they change; one that cannot be
  read defers mail.
- One From: field, one address, allowed by the envelope's lookup; then no
  other name of the SigningTable may appear anywhere in the raw line.
  Refused: 550 5.7.1 naming the line, reduced to printable ASCII.
- A refusal is a send-log row with reason "from" and the header address
  (migration 0006), written by another goroutine and not waited for. The
  journal's refusals record their reason too (limit, client), and the
  notifier takes only a limit's.

What it costs (docs/plans/from-header-binding.md, Statistics)
- The role marks itself alive every 2 s; at start the gap since the mark is
  downtime, counted from Postfix's start if later and not at all when
  supervisord says Postfix is not running.
- The log tailer counts the connections Postfix turned away: a warning that
  names the socket, then milter-reject "Service unavailable" from the same
  smtpd. Seen on the stand: the client is refused from CONNECT on and leaves
  at AUTH (454), so no MAIL line is ever written.
- sender_check_days, a row per UTC day, kept a year.

Pages
- Health: the card "Sender check", the socket's row, and the cards layout -
  boxes numbered by importance in two stacks read in rows; the left stack
  polls, the three readings of the right one are swapped in by id.
- Outbound log: a refused row says why in its tag (wrong From, wrong client,
  rate-limited); the message's page shows the From: line and what the
  application may send as.
- Help: topic "Sender check", word for word the mockup's.

Found by the stand, fixed here: the names for the second look came from the
sender bindings, and a domain with a key and no application yet was not
among them.

e2e: negative_journal_milter_fail_open is gone - it proved that mail passes
with the panel down, which is no longer so. In its place
sender_check_holds_the_from_line (another domain's From:, the hostname's, a
stranger's, an address off the list, another sender in the display name -
refused; own addresses - delivered) and panel_down_defers_mail (4xx with the
panel stopped, the container alive, mail again after, downtime and one
deferred message on Health, the card warning).

Test server, this tree before the last cosmetic edits (a fixture row, a
fact's size, docs): go vet ok, go test 23 packages ok, make e2e ok (337 s).
Locally after them: internal/web/view ok.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 19:35:43 +03:00
mixandClaude Opus 5.5 c9027381e5 panel-notifications: guide, architecture, security; refusals looked for every minute
guide.md gains Notifications: the four things, when each is said and said
again, who is told, the two switches, and the two DNS records of the server's
own name that make the mail arrive. architecture.md: the notifier as the
fifth role, its readings, state, recipients and sending; the server's own key
in OpenDKIM's tables; non_smtpd_milters. security.md: the panel submits mail
of its own - how, to whom, and what text from outside can reach a body.

That text - a queued message's sender, a DNS finding - is reduced to
printable ASCII and cut before it is printed. Refused mail is looked for
every minute instead of every five: it is one indexed query, and a refusal is
mail not being sent now. The image's note on the panel's postdrop membership
no longer calls it read-side only.

go test ./internal/notify passes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 16:00:06 +03:00
mixandClaude Opus 5.5 50fd6b859f panel-notifications: the notifier, its mail and the server's own DKIM key
internal/notify applies the owner's rules. Each subject has a row of state,
so a thing is said once and a restart says nothing again:

- DNS of a sending domain: said after two hourly checks in a row found a
  record wrong, said to be over after two found it right. A lookup that did
  not answer moves nothing; a warning (no DMARC record) is not a subject.
- TLS certificate: at 14 days and at 3, per certificate.
- Queue: a message older than three days, once; once more when none is.
- Level-2 limit: from the rejected rows of the send log, every five minutes;
  at most once a day per domain and application.

Global users are told everything, domain users about their domains; one
message per recipient. With the instance switch off nothing is checked and no
state moves. A message that could not be handed to Postfix is tried again at
the next check.

Mail leaves by sendmail(1) as postmaster@<hostname>, addresses after "--",
no shell. For it to be believed the server's own name is signed like a
sending domain: domain.Service keeps a key for it and a line in OpenDKIM's
tables without a registry row, and non_smtpd_milters now names OpenDKIM. A
sending domain of the same name shares its key with the server.
dnscheck.ServerMail checks the name's DKIM and SPF records;
postfix.QueueMessages reads postqueue -j for arrival times.

The notifier is a sixth role of the panel process. Nothing in the panel
shows or switches it yet.

Checked on Windows: go vet clean; go test passes for notify, store, postfix,
dnscheck, cmd, and domain apart from TestWriteLoadPrivateKeyRoundtrip, which
fails there on file modes and always did. Not yet run in a container: whether
the unprivileged panel may submit is for the e2e step.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 15:56:13 +03:00
mixandClaude Opus 5.5 5f86457848 milter: the level-2 limit and the client IP list hold for every message
Security fix, outside the inbound antispam feature. Found by its
technical review (Opus, 2026-10-12), reproduced on the test stand
before the fix: over an application's level-2 limit, two MAIL FROM on
one connection were answered 451 and then accepted.

Cause. Postfix introduces a client to a milter once per connection.
The milter library (go-milter 0.4.1, session.go) replaces the milter's
session after any reply that is not "continue" - a refusal, or the
accept that used to end a message. The new session never saw Connect,
so it had no client address, and both checks passed a message without
one: overLimit returned early ("no client IP to key on") and
authIPAllowed did the same. So every message after the first on a
connection, and every MAIL FROM after a refused one, skipped the
level-2 limit and an application's client IP list. In the code since
1.9.0 for the list and longer for the limit.

Fix.
  - build/postfix-config.sh: milter_mail_macros carries {client_addr},
    so the address comes with every MAIL FROM; MailFrom reads it (both
    spellings of IPv6) in the journal milter and the inbound journal
    milter.
  - overLimit no longer asks for a client address: a ceiling is on a
    domain or an application.
  - authIPAllowed refuses an application that has a client IP list when
    no address is known.
  - Body replies "continue" in both milters, which lets the message
    through as "accept" did and keeps the session.

The inbound journal milter had the same cause with a smaller effect:
rows of a connection's later messages had no client address.

In the same file, the checks of INBOUND_ANTISPAM_MILTER and
INBOUND_JOURNAL_MILTER_SOCKET refuse any character outside their set
first: a glob's "*" matched anything after the first characters.

Tests: a session that never saw Connect is judged by the macro, a
listed and an unlisted address, no address, not an address; the limit
with no client address; the inbound milter answers only "continue".
test/e2e sends two MAIL FROM on one connection over the limit and
wants both refused.

Checked on the test server: e2e red before the fix on exactly that
check, green after; go vet ./... ok, go test ./... ok (22 packages).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 07:51:50 +03:00
mixandClaude Opus 5.5 eea40bcd49 inbound-antispam-panel: filter lists, written as rspamd maps
Step 5/12 of docs/plans/inbound-antispam-panel.md.

Store: AddSpamListEntry, ListSpamListEntries, DeleteSpamListEntry.
internal/inbound/lists.go validates and normalises an entry - sender
address, sender domain, client address or network (canonical text, an
IPv4-mapped address as IPv4, /0 refused) - and writes the lists as six
map files under /data/antispam (ANTISPAM_DIR), each atomically, 0644 in
a 0755 directory: the filter is another user in another container. All
six are written on every change and on every start with the relay on,
empty ones included. An entry whose maps could not be written is taken
back out of the table. The writer refuses a stored value with
whitespace, a newline or # in it.

The plan's allow.map / deny.map became one file per list and entry
type: to rspamd an IP map and a sender map are different map types.

deploy/antispam/rspamd/multimap.conf holds the rules; the fragment
mounts it and ./data/antispam into the sidecar. Deny is a prefilter
reject, allow a symbol weighing -100. Tried in a throwaway rspamd 3.11
container on the test server:
  - with allow as a prefilter accept, an address on both lists was
    accepted and an IP on both was refused - the rule that ran first
    decided; with the weight, deny won in all five mixed cases;
  - IPv4, IPv6, address (any case), domain (not its subdomains) match;
  - a rewritten file is reread in about ten seconds, no restart;
  - files that appear after rspamd started are loaded the same way.

No page edits the lists yet (step 6).

Checked on the test server, uncommitted tree: go vet ./... ok,
go test ./... ok (22 packages), make e2e ok - with the relay on
/data/antispam is 755 and holds the six maps, 644, empty.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 23:07:10 +03:00
mixandClaude Opus 5.5 27fd355e53 inbound-antispam-panel: refused inbound mail from mail.log; retention
Step 4/12 of docs/plans/inbound-antispam-panel.md.

The log tailer writes an inbound_spam_log row for mail port 25 refused
(internal/logtail/inbound.go): a "reject:" line of the port-25 smtpd is
Postfix's own policy; a milter-reject / milter-hold / milter-discard
line of cleanup is the filter's verdict. Only a recipient at an inbound
domain is a row, so "Relay access denied" for a stranger's domain is
not. The row is dated by its log line; the reply text is cut to 255
bytes of printable ASCII; a reply starting with 4 is a tempfail.

To tell port 25 from 465 / 587 the listener now logs as
postfix/inbound (syslog_name). cleanup logs under one name for every
listener, so its verdict counts only for a queue id the port-25 smtpd
was seen to open (4096 remembered). Lines are matched from the head,
after timestamp and host: their tail is the sender's own text.

Retention: PruneInboundSpam every six hours - older than the
inbound_spam_log_retention_days setting (seeded from
INBOUND_SPAM_LOG_RETENTION_DAYS, 90, range 7-365), then down to 10 000
rows. The setting has no field in the panel yet.

Known limits, in architecture.md: a log line names one recipient, so a
message refused at end-of-message is one row; a line re-read after an
unclean stop would be a second row.

Checked on the test server, uncommitted tree: go vet ./... ok,
go test ./... ok (22 packages), make e2e ok - the unknown recipient at
the inbound domain refused on port 25 has its row (reject by postfix),
the stranger's domain has none.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 22:42:25 +03:00
mixandClaude Opus 5.5 28ec784ae2 inbound-antispam-panel: inbound journal milter on port 25
Step 3/12 of docs/plans/inbound-antispam-panel.md.

The panel serves a second milter while the inbound relay is on
(internal/milter/inbound.go, socket INBOUND_JOURNAL_MILTER_SOCKET,
default /run/selfpost/inbound-journal.sock). build/postfix-config.sh
puts it last on port 25, after the optional antispam milter, with
default_action=accept; postfix-wrapper.sh waits for its socket. At
end-of-message it writes one inbound_spam_log row per recipient at an
inbound domain - other port-25 recipients (DMARC report addresses) get
none - and always accepts. With a filter attached it reads the verdict
from X-Rspamd-Action and X-Spamd-Result (action, score, up to six
weighted symbols, only what the patterns recognise, 255 bytes); without
one those headers are the sender's and are not read. The plan named
X-Rspamd-Score, which rspamd does not have.

The antispam compose fragment mounts rspamd/milter_headers.conf into
the sidecar so that it adds the two headers (checked in rspamd 3.11:
both routines exist and remove a sender's own headers of those names).

Store: InsertInboundSpam, IsInboundDomain.

Checked on the test server, uncommitted tree: go vet ./... ok,
go test ./... ok (22 packages), make e2e ok - the relayed message of
inbound_relay_delivers_and_refuses has its journal row (accept by
selfpost) and the DMARC report sent through the same listener has none.

Not yet seen in a real run: a verdict written by rspamd reaching this
milter. The e2e stand has no filter, and the test server's only inbound
domain has no upstream, so it accepts no mail.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 22:18:14 +03:00
mixandClaude Opus 5.5 dd0fefdcb7 backup: the panel's archive is the command's, private key included
Owner, 2026-10-11: the private key is needed, and a backup from the
panel and one from the console have to be the same.

The commit that made the panel's backup work skipped a file under
certs/ the panel could not open - on the test server the private key,
which the certificate hook leaves to root and Postfix's group. That gave
an archive with a certificate and no key, and two kinds of archive.

- Params.Unprivileged is gone. Nothing is left out on account of who
  makes the archive; the queue is out for everyone (previous commit).
- When the panel cannot read a file under certs/, backup.Check says so
  before the download and the panel refuses with what to do on the host:
  chgrp 998 certs/privkey.pem && chmod 640. backup.UnreadableCert tells
  that case from any other failure.
- 998 is the container's selfpost group, which holds the panel and
  Postfix. Its id was whatever groupadd gave; the Dockerfile now fixes
  it at the value it has always had, because an operator addresses it
  by number from the host.
- Guide: method 1 is the same archive as method 2, with the permission
  the key needs and a note for whatever renews the certificate. Help and
  the box follow the design commit before this one.
- e2e: the restore scenario first makes the key unreadable and expects
  the refusal naming the file and the way out, then takes the backup and
  expects the key in it; nothing is put back by hand before the restart.

  go vet ./internal/backup/ ./internal/web/handlers/: ok
  go test ./internal/backup/ ./cmd/... ./internal/web/...: ok
  make e2e on the test server: ok

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 20:43:10 +03:00
mixandClaude Opus 5.5 4dd46ea355 dmarc: a report is bounded, kept per domain, and ingested one at a time
Security review of the DMARC report path (Fable, 2026-10-11), which ran
for the first time in 2.0.0. No Critical or High finding. Fixed:

- Medium: a report was bounded only as 8 MiB of XML - some 160 000
  records or one name of megabytes, all of it rows and table cells. At
  most 5 000 records (more is ErrRejected, dropped), text fields cut to
  255 bytes on a character boundary, a record's count capped.
- Medium: the cap of 500 reports was for the whole server, so a stranger
  filing under one domain's address evicted every other domain's
  reports. PruneDMARCReports counts per domain.
- Low: the pipe service ran up to default_process_limit (100) commands
  at once against the panel's database; maxproc is 1.
- Low: the reason logged for a dropped message carried the sender's
  bytes (header line, zip entry name) as they came; cut to 200 bytes and
  reduced to printable ASCII, zip entry names quoted.
- Low: SELFPOST_DATA_DIR / SELFPOST_DB_PATH with whitespace or "$" would
  reach the command through export_environment as another path; refused
  at start when DMARC ingest is on.

Left as they are, told to the owner: the parse-failure count is a
lifetime figure shown under "This week"; a report larger than the
command reads is dropped as unreadable; nested multipart is not searched.

The hub's Retention line follows the design commit before this one.
security.md: the review, and the accepted-risk entry says what a
stranger can and cannot do now. The roadmap no longer calls the review
pending.

  go vet ./cmd/... ./internal/dmarc/ ./internal/store/: ok
  go test ./cmd/... ./internal/dmarc/ ./internal/store/ ./internal/web/...: ok
  make e2e on the test server (with the port-25 scenarios of the next
  commit): ok

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 17:40:31 +03:00
mixandClaude Opus 5.5 252e5d1cff dmarc-ingest: Postfix can run the command, and it is told the recipient
The first DMARC report to reach the test server (Google, 2026-10-11
09:41 UTC) was accepted on port 25 and then sat in the queue:

  postfix/pipe: fatal: missing user= command-line attribute
  postfix/qmgr: warning: private/dmarc-ingest socket: malformed response

Three things stood between an accepted report and the panel, all since
the feature shipped in 1.7.0 - no report had ever been delivered:

- The service was addressed as dmarc-ingest/unix-pipe. Its type is unix:
  postconf -P answered "unmatched service_name/type" for flags=, user=
  and argv= (the warnings in the container log at every start), which
  are arguments of pipe(8) anyway and not -o parameters, and the service
  stayed a bare "pipe". For the same reason postconf -MX never removed
  it. It is dmarc-ingest/unix now, with the arguments in the service line.
- pipe(8) gives the command export_environment and nothing else, so the
  command would have refused to run: it reads DMARC_REPORTS_ENABLE (and
  the data directory, when it is not the default) from the environment.
  Those are now named in export_environment.
- The command took the recipient from RECIPIENT, which local(8) sets and
  pipe(8) does not. With no recipient the check that a report came to the
  address of its own domain is skipped. It is now ${recipient} in argv,
  one recipient per run.

When DMARC ingest is off the service and both parameters are removed.

e2e: every port-25 combination now asks Postfix for the service and the
two parameters (postconf -M / -h), and for their absence when ingest is
off - which is how the wrong type was found. make e2e on the test
server: ok. go test ./cmd/panel/ ./internal/dmarc/ ./internal/postfix/:
ok.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 14:25:14 +03:00
mixandClaude Opus 5.5 3f0d15c9e3 entrypoint: the queue directory and pid/ stay owned by root
The recursive chown to postfix at the end of the entrypoint also takes the queue directory itself and pid/, which Postfix keeps owned by root; postfix-script logs warning: not owned by root for both at every start. They are handed back to root after the chown, as public/ and maildrop/ are handed back to postdrop.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 00:31:36 +03:00
mixandClaude Opus 5.5 36db4223f2 postfix-config: report addresses are relay recipients when the relay is on
Found by talking SMTP to port 25 of the test server once it answered
again (2026-10-10): RCPT TO:<dmarc-reports+bs.mixdep.ru@selfpost.mixfed.ru>
was refused with "550 5.1.1 User unknown in relay recipient table".

With INBOUND_RELAY_ENABLE and DMARC_REPORTS_ENABLE both true the server's
own name is a relay domain (for the reports) and relay_recipient_maps
lists the relay's recipients only. smtpd_reject_unlisted_recipient
applies after the restriction list, so the OK that
check_recipient_access gives a report address does not help: every
report was refused. The table of report addresses is added to
relay_recipient_maps in that combination.

Checked on the server by setting the parameter in the running container
and reloading Postfix: the domain's report address is answered 250, the
former server-wide mailbox and an unknown local part 550, a foreign
domain and an inbound domain without recipients 554. e2e: the combined
case requires relay_recipient_maps to name both tables.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 00:05:40 +03:00
mixandClaude Opus 5.5 80748e6c94 postfix-config: no whitespace in the port-25 service's -o values
Seen in the System log of the test server (2026-10-10): on every
connection to port 25

  postfix/smtpd: fatal: unexpected command-line argument:
      texthash:/data/postfix/dmarc_recipients,reject_unauth_destination,...
  postfix/master: warning: .../smtpd: bad command startup -- throttling

With DMARC_REPORTS_ENABLE=true the script wrote
  -o smtpd_recipient_restrictions=check_recipient_access texthash:...,...
into master.cf. Master splits a service line on whitespace, so smtpd got
the option cut at the space plus a stray argument and died at start:
port 25 greeted nobody - no inbound relay, no DMARC reports. postconf -P
smtp/inet/smtpd_recipient_restrictions showed the cut value,
"check_recipient_access". The server's logs have it under the previous
image too (2026-10-09), so it is not from the redesign; postfix check
does not notice, and the e2e check compared the text of master.cf with
an expectation that had the space in it.

  - The restriction list is written with commas only (Postfix splits it
    on commas as well as whitespace).
  - master_cf_set_smtp_inet_o stops the container on a value with
    whitespace instead of writing it.
  - e2e: for every option it checks, the port-25 case also asks
    postconf -P and requires Postfix to read the same value.

Not fixed here: Postfix's start-time warnings "not owned by root" for
the queue directory and its pid/ - the entrypoint's recursive chown
again; harmless, logged at every start.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 23:57:36 +03:00
mixandClaude Opus 5.5 783bca806a entrypoint: public/ and maildrop/ of the queue stay in group postdrop
The entrypoint ends with chown -R postfix:postfix on the queue tree, on
every start, after postfix set-permissions has run. That puts public/
and maildrop/ in group postfix; Postfix keeps them in its setgid group,
and postqueue (setgid postdrop) reaches the showq socket through that
group only. So the panel, which runs postqueue -p as its own user, got
"Connect to the Postfix showq service: Permission denied": the Queue
card of Overview said "Could not be read" and the queue page showed no
listing. The data directory of the test server has carried the wrong
group since 2026-08-18, so this is older than the redesign - the
recursive chown came with the persistent queue in 1.3.0; Postfix itself
logs "warning: not owned by group postdrop" for both at start.

The two directories are handed back to postdrop after the chown.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 23:28:13 +03:00
mix 7ef7f75246 release: 1.9.2: Review pass: port-25 milters, DMARC validation, rate-limit fix
Review pass over `1.4.0`…`1.9.1`: port 25 no longer shares the submission milter chain, DMARC reports are validated before they are stored, and the auto rate limit is correct for a non-default level-1 window. Schema migration `0010` (index only). Upgrading is a tag bump.
Added:
  - SQLite migration `0010_send_log_app_login_index.sql` —
  - DMARC aggregate reports are accepted as **zip** as well as gzip or plain XML
  - e2e: `checkPort25ConfigCombinations` regenerates the Postfix configuration
Changed:
  - README hero line and a **Positioning** block in `docs/product.md` record the
Fixed:
  - The setup account's password is hashed at bcrypt cost `12` like every other
  - Login/setup rate limiter: protecting blocked buckets from eviction is now
  - `postqueue -p` output is bounded to 4 MiB (the timeout alone left the size of
  - [schema-migrations.md](docs/schema-migrations.md): the schema section was
  - postqueue reader is now time-bounded: `postqueue -p` runs under a 5-second
  … (11 more in CHANGELOG)
Changed:
  - [roadmap.md](docs/roadmap.md) now carries everything the 2026-08-19 code
  - Extracted `internal/configsafe` — the empty-value and forbidden-character
  - Build, deploy and migration comments no longer cite the archived
  - Dropped the `parseDomainRateLimitForm` / `parseAppRateLimitForm` pass-through
  - Extracted shared helpers: `internal/atomicfile` (atomic temp-write+rename) and
  … (7 more in CHANGELOG)
Removed:
  - Unused legacy asset `docs/assets/icon.png` (superseded by the four brand SVGs
  - Plan documents for already-shipped features: `domain-stats-auto-ratelimit`,

Full detail: CHANGELOG.md (1.9.2).
2026-09-22 15:24:53 +03:00
mix 967d3d95de release: 1.9.1: Port-25 Postfix startup with inbound/DMARC/antispam flags
Port-25 Postfix startup when inbound relay, DMARC ingest, or the inbound antispam milter are enabled. Schema-migration reference and roadmap plans for inbound antispam and quarantine. Upgrading from 1.9.0 is a tag bump; no migration.
Added:
  - [docs/plans/inbound-antispam-panel.md](docs/plans/inbound-antispam-panel.md) —
  - [docs/plans/inbound-quarantine.md](docs/plans/inbound-quarantine.md) — candidate
  - [docs/schema-migrations.md](docs/schema-migrations.md) — living reference for the
Changed:
  - [docs/roadmap.md](docs/roadmap.md) — `inbound-antispam-panel` (agreed, 1/12)
  - [docs/development.md](docs/development.md) — plan checklists may override
  - [docs/development.md](docs/development.md), [docs/roadmap.md](docs/roadmap.md),
Fixed:
  - `build/postfix-config.sh`: enabling inbound relay, DMARC ingest, and/or the

Full detail: CHANGELOG.md (1.9.1).
2026-09-22 15:24:53 +03:00
mix 20d88e1d9c release: 1.7.0: DMARC aggregate report ingest and panel summaries
Optional DMARC aggregate report ingest: accept `rua=` mail on port 25, parse gzip/XML into SQLite, and show summaries in the panel.
Added:
  - Optional DMARC aggregate report ingest (`DMARC_REPORTS_ENABLE`): port 25
  - Per-domain **SelfPost hosted** `rua=` mode when ingest is enabled

Full detail: CHANGELOG.md (1.7.0).
2026-09-22 15:24:52 +03:00
mix 656c4d4d7f release: 1.4.0: Optional inbound relay (backup-MX) on port 25
Optional inbound relay (backup-MX / forwarder) on port 25, off by default. Mail is accepted only for domains configured in the panel and forwarded to an upstream; there are still no mailboxes. A dedicated security review of the inbound path is still open on the plan (Fable).
Added:
  - `INBOUND_RELAY_ENABLE` (default `false`): when true, Postfix listens on
  - Panel **Inbound** pages (global administrator): domains, upstream host/port
  - Optional `INBOUND_ANTISPAM_MILTER` on the inbound listener only, plus
  - Inbound rate limit (`INBOUND_RATE_LIMIT_MESSAGES_PER_IP`, default 20) and
Changed:
  - Compose publishes host port 25 even when the flag is off (nothing listens
  - Full-backup restore Resync also rebuilds inbound maps when the flag is on.

Full detail: CHANGELOG.md (1.4.0).
2026-09-22 15:24:52 +03:00
mix 0730b2090e release: 1.3.0: 1.3.0-1.3.1: security pass, queue persist, full backup layout
[1.3.0]
Security and quality after 1.2.5: domain-admin send-log authorization, fail-closed sign-in and application delete, level-2 rate-limit race fix, restore Resync, expanded tests, operator docs, release CI, and OFL for IBM Plex. Upgrading from 1.2.x is a tag bump; no migration.
Added:
  - licence: the SIL Open Font License 1.1 text now travels with the IBM Plex
  - docs: agreed roadmap item **queue-retries** — show this Postfix's retry
Security:
  - The independent security review of the send-log authorization and
Fixed:
  - test (e2e): send-log status scrapers follow the badge markup in
  - security (panel): the Deliveries list is scoped to a domain administrator's
  - mail (level-2 rate limit): the ceiling is no longer overshot by messages that
  - panel (sign-in): a session that cannot be written to the database no longer
  - panel (applications): deleting an application removes its SASL credentials
  … (2 more in CHANGELOG)
Changed:
  - docs: operator and as-built docs aligned with the code after a full
  - docs: [guide.md](docs/guide.md) reorganised into **Installation**, **Instance
  - docs: the 2026-08-13 full-tree review plan is complete — every phase (P0–P7)
  - licence: [NOTICE](NOTICE) tells modifiers to update `SourceURL` in
  - ci: the release image is published only for a **published** GitHub Release
  … (9 more in CHANGELOG)
[1.3.1]
Retry policy in the panel, persistent Postfix queue, and self-contained full backups. Mail queue and delivery history show this Postfix's first retry, backoff cap, and queue lifetime. Deferred mail survives container recreate. Full backups now archive `data/`, compose, `.env`, and `certs/`; the archive layout breaks 1.3.0 flat backups (unpack those with `tar xzf backup.tar.gz -C ./data` as before). Upgrading from 1.3.0 is a tag bump; no schema migration.
Added:
  - Mail queue and a delivery's history show this Postfix's retry policy
  - docs: **Plan checklists** in [development.md](docs/development.md) — format,
  - docs: **Implementation checklists** with model routing in
  - docs: roadmap candidates **send-log-retention** (panel Settings for delivery
  - Postfix queue under `/data/postfix/queue` — deferred and active mail survive
  … (1 more in CHANGELOG)
Changed:
  - **Breaking:** full-backup archive layout — paths are prefixed with `data/`;
  - docs: operator guide, architecture, security, and backup UI updated for
  - docs: HTML mockups for a full panel UI refresh
Changed:
  - docs: panel UI mockups after review — Status restored to live readings
  - docs: panel UI design system and mockups rebuilt as separate pages
  - docs: panel UI mockups — add-domain sits in the list card (Domains and
Fixed:
  - ci (GHCR): per-arch package tags (`X.Y.Z-amd64`, `X.Y.Z-arm64`) are dropped

Squashed CHANGELOG sections: [1.3.0], [1.3.1].

Full detail: CHANGELOG.md (1.3.0, 1.3.1).
2026-09-22 15:24:52 +03:00
mix 60e08e802e release: 1.2.0: Panel 1.2.0-1.2.5: layout, RBAC, tests, GUI and CI fixes
[1.2.0]
The second MINOR after 1.0.0: domain administrators with per-domain scope, a panel visual refresh on the SelfPost palette, and refinements to navigation and the send log. Upgrading runs one SQLite migration (`0005_panel_users`); the single administrator becomes a global user.
Added:
  - panel: **domain-admin role** — global administrators manage panel users and
Fixed:
  - Docker build: `LICENSE` is no longer excluded by `.dockerignore`, so the
  - panel: on signed-in pages with a narrow card (**Settings**, the user form)
Changed:
  - panel: navigation session icons are distinct — **Settings** uses a gear,
  - panel: `/` redirects domain administrators to `/domains`; global users still
  - panel: **Sign out** in the navigation column uses the same type size and
  - panel: **visual style** brought in line with the SelfPost mark — brick accent
  - panel: the send log's **status is a badge**, in the same ok/warn/error/unknown
  … (1 more in CHANGELOG)
[1.2.1]
Panel refinements after 1.2.0: navigation icons, status-badge centreing, drill-down back-link placement, and safeguards for the sole global administrator. Upgrading is a tag bump; no migration.
Fixed:
  - panel: status badge text sat low in the box (and below the heading or label
  - panel: the **Users** navigation icon was two full silhouettes with staggered
  - panel: the **Settings** navigation icon was a sun-with-rays (circle plus
  - panel: the user create/edit form placed «Back to users» at the bottom of the
Changed:
  - panel: the user edit form disables role change and delete for the only global
  - panel: the user create/edit form hides **Assigned domains** when the role is
  - panel: **Settings** shows panel credentials and DMARC aggregate reports side
[1.2.2]
Status page layout after 1.2.1: paired cards in a wide column, denser machine and check copy, and a user-form checkbox fix. Upgrading is a tag bump; no migration.
Changed:
  - panel: **Status** is wide again so paired cards fill the column. Layout:
Fixed:
  - panel: cards inside `.split` used `margin: 0 auto`, which in a CSS grid
  - panel: on the user create/edit form, **Assigned domains** checkboxes stacked
[1.2.3]
Domain detail layout and panel polish after 1.2.2. Upgrading is a tag bump; no migration.
Changed:
  - panel: the domain detail page is wide with paired cards (DKIM+SPF ‖ DMARC;
  - panel: Domains list — **Add domain** sits beside the domain field; the
  - panel: page URLs, browser titles, and headings are aligned — **Settings** is
Fixed:
  - image: `mail.log` rotation no longer silently stops when the build context
[1.2.4]
Level-2 rate-limit semantics inverted after 1.2.3, plus a small DNS field height fix. Upgrading is a tag bump; no migration.
Changed:
  - rate limiting (level 2): domain ceilings apply to every client IP (no IP
Fixed:
  - panel: on the domain DNS status grid, the Type (TXT) field height matches
[1.2.5]
Rate-limit form polish after 1.2.4. Upgrading is a tag bump; no migration.
Changed:
  - panel: rate-limit forms refined — level-1 backstop as muted copy on the

Squashed CHANGELOG sections: [1.2.0], [1.2.1], [1.2.2], [1.2.3], [1.2.4], [1.2.5].

Full detail: CHANGELOG.md (1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5).
2026-09-22 15:24:52 +03:00
mix f62fe23826 release: 1.1.0: Domain-admin role and internal/web package split
The first MINOR after 1.0.0: send-only DMARC guidance in the panel, AGPL packaging on every page, and an internal split of `internal/web` ahead of domain-admin work. Upgrading runs one SQLite migration (empty defaults; existing DNS guidance is unchanged until you set a report address).
Changed:
  - `internal/web` split into subpackages (`web/view`, `web/auth`, `web/validate`,
Added:
  - panel: DMARC guidance for send-only relays — the suggested `_dmarc` record
  - AGPL packaging hygiene: [NOTICE](NOTICE) names the copyright holder and the
  - [docs/roadmap.md](docs/roadmap.md) — candidate item **visual-style** (panel

Full detail: CHANGELOG.md (1.1.0).
2026-09-22 15:24:52 +03:00
mix 75207f0d1e release: 1.0.0: Public 1.0 image; delivery log; docs and SECURITY.md (incl. 1.0.1)
[1.0.0]
Added:
  - A **Delivery log** on each delivery's page (`/deliveries/{id}`): the
  - A **History** block on the same page: the journal's two timestamps stated as
Fixed:
  - Postfix config: copy TLS cert/key from the (often `:ro`, host-owned) mount
  - Postfix config: allow `maillog_file` under `/data` via
  - E2e: read `/data/setup-token` via `docker compose exec` (file is `0600`
  - Entrypoint: check `SELFPOST_HOSTNAME` before `/data` setup (so a bad identity
  - E2e gate: wait for host-published `/healthz` before panel setup, and stop
  … (3 more in CHANGELOG)
Changed:
  - Document what `.spbk` and `.spde` stand for (SelfPost backup / SelfPost domain
  - Docs aligned with the code: setup URL is `/setup/<token>` (README and
  - Full backups no longer carry `/data/log`. It is Postfix's raw log plus its
  - Monitoring screens (status, mail queue, system log, deliveries) use adaptive
  - Documentation package consolidated into `docs/development.md`: Documentation
  … (4 more in CHANGELOG)
[1.0.1]
A documentation and packaging release: no change to the mail path, the database, or the on-disk layout. Upgrading is a tag bump.
Added:
  - `SECURITY.md` — how to report a vulnerability privately (GitHub private
  - [docs/plans/](docs/plans/) — one document per agreed extension: the optional
Changed:
  - The panel's **Account** entry is now called **Settings** — nav link, page
  - The signed-in name in the panel's nav is now labelled `User:`, so it reads as
  - [docs/product.md](docs/product.md) reframes the future line: the inbound
  - [docs/security.md](docs/security.md) is now in English, matching the rest of
  - The README documentation table now points at `SECURITY.md` for reporting a
  … (2 more in CHANGELOG)
Fixed:
  - The panel's static assets are served with a content ETag and

Squashed CHANGELOG sections: [1.0.0], [1.0.1].

Full detail: CHANGELOG.md (1.0.0, 1.0.1).
2026-09-22 15:24:51 +03:00
mix 5e5d157496 release: 0.5.0: Pre-1.0 security review, domain-admin role, doc consolidation
A bounce could be recorded as a successful delivery. The log-tailer's
Fixed:
  - A bounce could be recorded as a successful delivery. The log-tailer's
  - Log-tailer resumes where it stopped instead of jumping to end-of-file on
  - Level-2 rate limit no longer overshoots under concurrency: messages that
Changed:
  - The project has a single public home: `github.com/mixeme/selfpost`. Codeberg
  - Code comments no longer cite the archived specification. References like
  - `docs/code-review.md` is gone. Its plan is finished — phases 0 (bar the
  - `docs/architecture.md` gained a *Code layers* section: a diagram of
  - Phase 1 doc/code hygiene (`docs/code-review.md`): removed ~30 stale
  … (1 more in CHANGELOG)
Security:
  - Pre-release security review (plan § D, model Fable, 2026-08-06): full pass
  - `saslpasswd2` argv: the application login is now passed after a `--`
Added:
  - Optional password encryption for the two secret-bearing downloads (plan
  - Domain import accepts an encrypted export: the envelope is detected by its
  - `selfpost-backup` writes encrypted archives and reads them back:
  - `TestParseDelivery` covers the exotic mail.log shapes the review asked for
  - docs: README *Encrypting a backup or export*; `docs/security.md` §
  … (14 more in CHANGELOG)
Removed:
  - docs: `security.md` — accepted risk «restore old backup revives session rows»
Changed:
  - docs: `implementation-plan.md` trimmed to the sole open v1.x gate — pre-release
  - docs: `architecture.md` — sessions (SQLite, idle renew, password change),
  - docs: `development.md` — expanded e2e stack and `release.yml` matrix workflow.
  - docs: `security.md` — accepted risk for send-log rows stuck at `queued` after
  - docs: `roadmap.md` — optional send-log / `mail.log` follow-ups under v1.x tail.
  … (10 more in CHANGELOG)

Full detail: CHANGELOG.md (0.5.0).
2026-09-22 15:24:51 +03:00
mix 8ce050ef7f release: 0.1.0: Phases 0-11: panel, Postfix/DKIM, milter, backup, Docker image
Initial feature-complete implementation of the v1.0 specification (phases 0-11 of `docs/implementation-plan.md`).
Added:
  - Panel (Go, single static binary) with SQLite persistence, one-time
  - Domain management with per-domain DKIM (RSA-2048, generated in pure Go) and
  - Application (sender identity) management: SASL credentials via `sasldb2`,
  - Full Postfix relay config generated from env at container start: SMTPS 465,
  - Journal milter (pure Go, `go-milter`) recording every send to `send_log`;
  … (6 more in CHANGELOG)

Full detail: CHANGELOG.md (0.1.0).
2026-09-22 15:24:51 +03:00