postfix:
# postmaster email address
postmaster: postmaster@example.org
+ # optional: Hostname of this email system
+ hostname: mail.example.org
# 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
submission: True
# optional: From which IPs to accept mail.
mynetworks: '127.0.0.0/8 [::1]/128 203.0.113.0/24'
+ # optional: Domains for which to receive emails and forward according to virtual_alias_map.
+ alias_domains: staff.example.org
# optional: Hostnames and SHA1 certificate hashes that are allowed to relay email via this host.
relay_client_cert_whitelist:
- hostname: other.example.org