OK, I just created a new droplet at digitalocean and installed virtualmin via the command line.
Then I created a virtualmin domain, made sure that email for domain was enabled.
Then I added an alias info to forward to the user@domain.com
Then I tried to email both that alias and user@domain.com.
Neither email is received.
This is what I have in my maillog:
...
Aug 20 05:22:20 centos-7-x64 postfix/postalias[24292]: warning: /etc/aliases, line 97: need name:value pair
Aug 20 05:24:31 centos-7-x64 dovecot: pop3-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=x.x.x.x, lip=x.x.x.x, TLS handshaking: Disconnected, session=<WAD/t7odDgCydVRT>
Aug 20 05:30:34 centos-7-x64 dovecot: pop3-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=x.x.x.x, lip=x.x.x.x, TLS handshaking: Disconnected, session=<3WyczbodiACydVRT>
(and more of these disconnected messages)
Any idea why these emails are not being received?