I'm following this guide:
and I am able to send email from the roundcube client but not receive. I get an email back to the sender (my gmail) stating:
Code:This is the mail system at host MYDOMAIN. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <sysadmin@MYDOMAIN>: mail for MYDOMAIN loops back to myself
I'm able to post any relevant config files/logs as needed. Any help is greatly appreciated.