SMTP Routing fails after upgrade to 3.0.2.1
We use mail routing to send mail from one ISPConfig box to another. However, after upgrade from 3.0.1 to 3.0.2.1 this failed.
Removing the following line from '/etc/postfix/main.cf': relay_recipient_maps = mysql:/etc/postfix/mysql-virtual_relayrecipientmaps.cf
and then restarting Postfix resolved the issue.