Comments only, no behaviour changed. Each place the log tailer, Health and
cmd/panel rely on another program now says where that is written, for the
version the image runs: Postfix 3.7.11 (log_adhoc(), msg_logger_print(),
smtpd_whatsup(), cleanup_milter.c, qmgr_active.c, postlogd.c, showq.c,
pipe.c), logrotate 3.21.0, supervisor 4.2.5, proc(5). Measurements stay
measurements and say where and when; test fixtures say whether they were
seen or composed.
Where the source contradicts the code the comment does not bless it but
names the register entry (A-8 expiry, A-12 the ISO stamp no Postfix writes,
A-15 the last recipient, A-21/A-23 sasl_username, A-33 postlogd's old
inode, A-38 a socket file is not a listener, A-65 the certificate served);
those are fixed in their own commits.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The owner's decision of 2026-10-10, as the plan has it (Who sees what:
for the global administrator the filter's socket is one of the milter
sockets on Health and Overview). Written by Sonnet, reviewed by Opus.
- internal/health: CheckMilter probes an address in Postfix's two
forms. unix:/path is the existing stat; inet:host:port is a TCP
dial with a 1 s cap, closed at once, nothing written. An address in
neither form is reported as not checkable, never as fine. Details
are plain sentences ("No answer from antispam:11332 within 1 s.",
"Connection to ... refused.", "The name ... could not be
resolved.") and never the Go error text.
- Health: with the filter on, a third row "Spam filter - inbound"
with the configured address; it counts in the socket status and in
Overview's Milter sockets card. A filter that does not answer is an
error when INBOUND_ANTISPAM_MILTER_ACTION is tempfail (inbound mail
is deferred) and a warning otherwise (mail goes through
unfiltered), and the row says which. With the filter off nothing
changes.
- Both pages are global-only; a test checks a domain administrator
never receives the address.
The dial runs with the other checks on every request and poll of
Overview and Health (5 s active, 30 s idle, none while the tab is
hidden): a dead filter costs a poll at most 1 s, and a live one sees a
connect-and-close at that rhythm per open tab.
Not changed: fixtures and screenshots (the mockup draws two sockets),
help texts. The CHANGELOG line comes with the documentation step, which
is editing that file now.
go test -count=1 ./internal/health/... ./internal/web/... ./cmd/panel
ok (seven packages)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
mixandClaude Opus 5.5