From my Yahoo! account, I tried to send a message to a user (me) on mydomain, but it bounces back with the following error message. Interestingly, I am receiving some emails, just not all. What can I do?
Sorry, we were unable to deliver your message to the following address. <firstname.lastname@example.org>: Remote host said: 550 5.7.1 Unable to relay for email@example.com [RCPT_TO]
Where am I going wrong?
My /etc/mail/relay-domains has:
mydomain.com <IP for mydomain.com> myotherdomain_hostedsomewhereelse.com <its IP address> localhost