- infra/ansible/roles/mail: refactor OpenDKIM to support multiple signing domains
via opendkim_signing_domains list (root + send.performancewest.net). Loops
keygen/ownership/keytable/signingtable so the live two-domain setup is
reproducible from ansible.
- infra/ansible group_vars: add bulk_mail_subdomain + campaign_from_* +
campaign_reply_to documentation vars (map to CAMPAIGN_FROM / HC_CAMPAIGN_FROM
env read by the builder scripts). smtp_from (transactional) stays on root.
- docs/deliverability.md: rewrite TL;DR with the carrierone-vs-performancewest
A/B proof (same server/IPs, different From domain -> Inbox vs Junk) and the
~85% Microsoft / 14% Google / <1% Yahoo audience mix; add the bulk-subdomain
section, SPF trim, rehab-disabled, and the Hestia DNS automation runbook.
SMTP2GO is no longer used: Listmonk relays through the local Postfix MTA
(172.18.0.1:25 from the Docker network), which DKIM-signs and delivers
direct-to-recipient-MX; transactional mail goes through Carbonio. Verified
zero smtp2go in any live container env + postfix has no external relayhost.
Removed the stale references so a rebuild/new dev can't re-introduce it:
- api/src/config.ts: SMTP_HOST default mail.smtp2go.com -> co.carrierone.com
- scripts/workers/crypto_payment_worker.py: same default fix
- infra/ansible all.yml: listmonk_smtp_* now 172.18.0.1:25, no auth (+comment)
- app.env.j2 / email.ts / crm.md / go-live-todo.md / architecture.svg: docs