If you are having problems with email delivery send us an email at firstname.lastname@example.org for assistance. Your email must contain all of the following information in order for us to process your request.
First name Last name Email address Phone number Domain IP/CIDR range of outgoing email servers
From the following choices, indicate the item that best describes the issue you are experiencing. My IP address is being blocked My domain is being blocked My email is being marked as spam My email is not arriving to the intended recipients My email is being delayed Other
Include a detailed description of the issue you are experiencing, such as the date and time when the problem began and the corrective action that has been taken.
I'm seeing the same problem with mail my spouse is sending to me. Different Exchange server, but the same error message. Most messages don't go through, and the few that do take 20+ hours for a simple message with no attachments.