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chore(email): decommission SMTP2GO references — local MTA only

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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
This commit is contained in:
justin 2026-06-17 22:46:59 -05:00
parent eba525f83f
commit a04ecf7df3
8 changed files with 18 additions and 14 deletions
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docs/crm.md
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@ -270,7 +270,7 @@ store customer orders or tickets — ERPNext is the CRM source of truth.
3. Listmonk tracks email opens/clicks and manages subscriber lists
4. Bounce processing via POP3 from Carbonio (`co.carrierone.com`)
**Mass email:** SMTP2GO is used for Listmonk campaign sends (not Carbonio — Carbonio is for transactional email only).
**Mass email:** Listmonk campaign sends relay through the local Postfix MTA (172.18.0.1:25 from the Docker network), which DKIM-signs and delivers direct-to-recipient-MX. Carbonio (co.carrierone.com) is for transactional email only. (SMTP2GO was decommissioned — no external relay is used.)
**Campaigns:**