You check the mail log on /var/log/maillog ? you can monitoring with:
user@myserver# tail -f /var/log/maillog
And you can see the errors if exist. In a new instalation you need configure the domains aproved for receive emails in this server.
You check the mail log on /var/log/maillog ? you can monitoring with:
user@myserver# tail -f /var/log/maillog
And you can see the errors if exist. In a new instalation you need configure the domains aproved for receive emails in this server.