fix: update mail server configuration to reflect new email hostname and adjust SPF record

swarm/mailserver/README.md

@@ -30,7 +30,7 @@ Create these DNS records for your mail domain:
 
 - A: mail.example.com -> your public IP
 - MX: example.com -> mail.example.com (priority 10)
-- SPF TXT: v=spf1 mx a:mail.example.com -all
+- SPF TXT: v=spf1 mx a:mail.example.com -all # v=spf1 include:spf.efwd.registrar-servers.com ~all
 - DKIM TXT: mail._domainkey.example.com -> generated DKIM key
 - DMARC TXT: _dmarc.example.com -> v=DMARC1; p=quarantine; rua=mailto:postmaster@example.com
 

swarm/mailserver/docker-mailserver.env

@@ -4,8 +4,13 @@ ENABLE_POSTGREY=1
 ONE_DIR=1
 OVERRIDE_HOSTNAME=mail.furyhawk.lol
 OVERRIDE_DOMAINNAME=furyhawk.lol
-POSTMASTER_ADDRESS=postmaster@furyhawk.lol
+POSTMASTER_ADDRESS=postmaster@mail.furyhawk.lol
 PERMIT_DOCKER=network
+# Outbound mail relay (recommended when ISP/cloud blocks direct SMTP to Gmail)
+# RELAY_HOST=smtp.your-provider.com
+# RELAY_PORT=587
+# RELAY_USER=your-smtp-username
+# RELAY_PASSWORD=your-smtp-password
 SSL_TYPE=manual
 SSL_CERT_PATH=/tmp/docker-mailserver/ssl/fullchain.pem
 SSL_KEY_PATH=/tmp/docker-mailserver/ssl/privkey.pem

swarm/traefik/services.yml

@@ -39,7 +39,7 @@ http:
     mail_machine:
       entryPoints:
         - https
-      rule: Host(`mail.furyhawk.lol`)
+      rule: Host(`email.furyhawk.lol`)
       middlewares:
         - admin-auth@swarm
       tls: