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feat(postfix): deploy postfix MTA and rspamd spam filter

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- postfix namespace with Deployment + HPA (2-6 replicas)
- rspamd Deployment + HPA (2-6 replicas) with milter interface
- postfix configured to relay inbound mail to stalwart via transport maps
- rspamd milter on port 11332 for spam scanning and DKIM signing
- DKIM keys stored in Vault at kubernetes/namespace/postfix/default/dkim-keys
- TLS cert via cert-manager (vault-issuer) for mail.main.unkin.net
- rspamd web UI exposed via Traefik Gateway at rspamd.k8s.syd1.au.unkin.net
- postfix external LoadBalancer service for inbound MX on port 25
- artifactapi: add boky/postfix and rspamd/rspamd to dockerhub cache
This commit is contained in:
Ben Vincent
2026-05-24 00:43:56 +10:00
parent cbc2c1cb9f
commit 1cf08dd5c1
20 changed files with 514 additions and 0 deletions
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apps/base/postfix/namespace.yaml
+5
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---
apiVersion: v1
kind: Namespace
metadata:
name: postfix