feat: Mailcow email server deployed on Billing VPS
Deployed March 15, 2026 — two weeks ahead of April 1 target.
- Mailcow dockerized stack on Billing VPS (38.68.14.188)
- Nginx proxy on 8080/8443 (coexists with Paymenter)
- Let's Encrypt SSL (auto-renews, expires 2026-06-14)
- ClamAV disabled for RAM conservation (1.9GB server)
- DKIM selector: dkim, 2048-bit key
- SPF updated (plesk.breezehost.io removed)
- Autodiscover/autoconfig CNAMEs added
- Daily backup cron 3am via helper-scripts
- Outbound verified: mail-tester.com + Gmail both delivered
- Inbound: DNS propagating, Gmail retry pending
Mailboxes: michael, megan, holly, hello, noreply, support
Aliases: frostystyle, gingerfury, unicorn20089, admin, billing, webmaster
Plane deployment updated: TX1 Dallas (not new VPS)
Fleet audit showed TX1 has 226GB free RAM — Plane is trivial.
Refs: Task #11, Task #47
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