After upgrading to SMEServer 8.0 one of my vendors, who emails me on a daily basis has started getting this error when he sends me an email.
<my.email.address> (Certificate rejected over TLS.)
Original-Recipient: <my.email.address>
Action: failed
Diagnostic-Code: smtp; 554 Certificate rejected over TLS.
Remote-MTA: 71.39.149.9
I have search the forum and have found nothing pertaining to this error. When i google the error everything I find seems to pertain to a McAfee appliance. Can anyone tell be if this is a SME issue or something else, and if it is SME how to fix it.
Sal1504