mixandClaude Opus 5.5
27fd355e53
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>
70 lines
3.2 KiB
Bash
70 lines
3.2 KiB
Bash
# Copy to .env next to docker-compose.yml and fill in.
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# Full reference: docs/guide.md "Environment variables".
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# Required — the container refuses to start without it. Hostname used both for
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# the panel's TLS vhost and for Postfix's SASL realm (SASL_REALM defaults to
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# this) and myhostname; must also match your PTR record. Must match the
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# certificate your reverse proxy obtains. Bare FQDN only — no scheme or port.
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SELFPOST_HOSTNAME=mail.example.com
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# Set to true to also enable RFC 6409 submission (587/STARTTLS) alongside the
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# primary 465/smtps listener.
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SUBMISSION_ENABLE=false
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# Optional inbound relay (backup-MX / forwarder). When true, Postfix accepts
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# mail on port 25 only for domains configured in the panel and forwards them
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# to the upstream you set. Off by default — the outbound path is unchanged.
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INBOUND_RELAY_ENABLE=false
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# Optional DMARC aggregate report ingest. When true, Postfix accepts mail on port
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# 25 only for report addresses configured in the panel (global default and/or
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# per-domain SelfPost-hosted addresses) and pipes them to the ingest worker.
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DMARC_REPORTS_ENABLE=false
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# Coarse per-client-IP limit and message size for DMARC ingest on port 25.
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# DMARC_RATE_LIMIT_MESSAGES_PER_IP=20
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# DMARC_MESSAGE_SIZE_LIMIT=5242880
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# Optional milter on the inbound listener only (not 465/587). Empty = off.
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# Example with deploy/antispam/docker-compose.antispam.yml:
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# INBOUND_ANTISPAM_MILTER=inet:antispam:11332
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# INBOUND_ANTISPAM_MILTER_ACTION=accept
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# Days the inbound journal keeps a row (7-365) until the panel says otherwise;
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# it never holds more than 10 000 rows.
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# INBOUND_SPAM_LOG_RETENTION_DAYS=90
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# Coarse per-client-IP limit and message size on inbound smtpd (port 25).
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# INBOUND_RATE_LIMIT_MESSAGES_PER_IP=20
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# INBOUND_MESSAGE_SIZE_LIMIT=26214400
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# Level-1 backstop rate limit (anvil) — see docs/guide.md "Rate limiting".
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RATE_LIMIT_MESSAGES_PER_IP=100
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RATE_LIMIT_WINDOW_SECONDS=3600
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# Days of send-log history kept before the background sweep deletes rows.
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SEND_LOG_RETENTION_DAYS=90
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# Sliding idle timeout for the panel login session, in days. No absolute cap:
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# an admin who keeps coming back stays signed in indefinitely. Polling by the
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# monitoring screens does not count as activity, only navigation/actions do.
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PANEL_SESSION_IDLE_DAYS=7
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# Comma-separated resolvers the panel's deliverability checks (PTR, SPF, DKIM,
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# DMARC) query directly. They deliberately skip this host's own resolver: with
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# systemd-resolved the reverse lookup of the server's IP answers with the local
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# hostname instead of the PTR record published in public DNS, which made the
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# panel report a correct PTR as wrong. Leave unset for the public defaults
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# (1.1.1.1, 8.8.8.8, 9.9.9.9); set it if outbound port 53 is closed or you run
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# your own recursor, e.g. SELFPOST_DNS_RESOLVERS=10.0.0.2:53
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# SELFPOST_DNS_RESOLVERS=
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# Comma-separated CIDRs (bare IPs allowed) of reverse proxies allowed to
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# supply X-Forwarded-For for login/setup rate-limiting. Leave unset unless
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# you know the exact address of your reverse proxy — trusting the wrong
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# source lets a client spoof its rate-limit key. Behind the default Apache
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# host-network setup this is typically the Docker bridge gateway, e.g.
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# TRUSTED_PROXY_CIDR=172.18.0.1
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