I am trying to set up the mail service on my server. I installed exim4 and configured it. I can send emails to any email address, send one from a user to another but not receive any.
When I try to send one from gmail I get a mail from gmail daemon with the subject:
Delivery Status Notification (Failure) stating
Recipient address rejected: User unknown in relay recipient table
The user exists for sure because I replied to the mail I first sent from my server.
My MX lookup:
example.org mail is handled by 10 mx2.example.org example.org mail is handled by 10 mx1.example.org
Any idea on what is going wrong?
Thank you in advance