postfix:
# optional: Whether to put a postscreen on port 25
postscreen: True
+ # optional: Open another SMTP daemon on port 26 that only accepts mail from local hosts
+ # (and whitelisted client certs, if applicable). Useful when the source of the mail is in
+ # a network that blocks port 25 outgoing.
+ smtpd_26: True
# optional: Whether to accept emails for arbitrary destination on the submission port,
# authenticated by dovecot. Requires a dovecot: section (see below).
submission: True
quota:
general: 1G
trash: +10M
- # optional: File in /etc/postfix that configures client certificates that may use
- # this server for relaying arbitrary mail.
- relay_client_cert_whitelist: relay_clientcerts
+ # optional: Hostnames and SHA1 certificate hashes that are allowed to relay email via this host.
+ relay_client_cert_whitelist:
+ - hostname: other.example.org
+ cert: 00:11:22:33:44:55:66:77:88:99:AA:BB:CC:DD:EE:FF:00:11:22:33
# optional: Configure a host to relay all outgoing email to.
# Incompatible with smtp_outgoing.
relay_host: mx.example.org