AOL bounces with: AOL will not accept delivery of this message

moorray asked:

AOL started bouncing emails from my mail server with the following error:

521 5.2.1 :  AOL will not accept delivery of this message.
554 5.5.0 Remote protocol error

On the troubleshooting page AOL asks for specific error code but all I get is a generic message. The emails are sent from Outlook, without any attachments. I don’t send out any mass email/newsletters, only personal email.

What can cause this and how should I proceed? Without the specific code I can’t proceed with AOL. Have anyone had this problem?

My answer:


You can try submitting the form with no error code selected, and hope for the best. If you’re lucky, a human being might read it.

You can also try contacting AOL Postmaster by phone, on +1 703 265-4670 (reportedly AOL postmaster operations are now being handled in India; you’ve been warned).


View the full question and answer on Server Fault.

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