If the domain part was not provided, $myhostname will be used.
In case $myhostname is not in $mydestinations, the email will be relayed.
In case $myhostname is invalid, the email will be bounced.
The next hop should always be LMTP (local: transport)
and hence the `@localhost`
- Separate alias database from system
- Block mail to system users, without backscatter
- Alias management UI for non-admin users
- Enabling/Disabling aliases (mails to /dev/null)
Misc. changes
- Daemon management
- Backup information
- Postconf diagnostics interface
