We are trying to send email to a designated IP via a relay directive on PMTA, but we are receiving the following error message: #5.6.1 smtp;554 5.6.1 Body type not supported by Remote Host with our AOL clients only
Without the relay, the email arrives fine. Any thoughts to why this is happening?
Thanks for your quick response. We are not running Postfix on the server. However, we can try to change our settings from 8bitmime to 7 bit.
But what I'm not quite getting is why would the same email get into AOL's inbox if we manually directed the mail to the relay server. It seems it is the relay config that is making the email fail with AOL. There are no delivery problems with other ISPs.