---
id: TASK-4
title: Configure email sending domain
status: Done
assignee: []
created_date: '2026-02-10 02:22'
updated_date: '2026-02-22 01:25'
labels: []
dependencies: []
priority: low
---

## Description

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Currently sending from noreply@jeffemmett.com. May want to switch to noreply@cadcad.org once domain is confirmed. Would need to add cadcad.org domain to mailcow or use authenticated SMTP.
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## Notes
- Added cadcad.org domain to Mailcow with DKIM key generated (2026-02-22)
- Created noreply@cadcad.org mailbox
- Added DNS records to Cloudflare: SPF (ip4:159.195.32.209), DKIM (2048-bit RSA), DMARC (quarantine), MX (mail.rmail.online)
- Updated Discourse app.yml: DISCOURSE_SMTP_DOMAIN=cadcad.org, DISCOURSE_NOTIFICATION_EMAIL=noreply@cadcad.org
- Rebuilt Discourse container, reconnected to traefik-public and mailcow-network
- Test email sent successfully: noreply@cadcad.org → jeffemmett@gmail.com (delivered via Gmail SMTP, status=sent)

## Implementation Notes

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cadcad.org domain already in Mailcow with noreply@cadcad.org mailbox. DNS records (MX, SPF, DKIM, DMARC) all configured in Cloudflare. Discourse SMTP already pointing to noreply@cadcad.org. Sender ACL updated.
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