AOL emails bouncing back certain domains

Blake Hudson blake at
Fri Dec 11 21:54:13 UTC 2015

Aaron, I reported an issue here almost a month ago (521 5.2.1 : AOL will 
not accept delivery of this message). AOL support did, eventually, 
acknowledge an issue and the failed deliveries did, eventually, clear up 
for us. AOL support never stated what the issue was nor did they provide 
any explanation. The responses that we received, much like the response 
you received, did not give me the impression that their support staff 
was provided any information to pass along.

The only advice I can offer is to take care of your own stuff and keep 
following up with AOL occasionally regarding their issues. There's not 
much you can do, as a non AOL customer, to resolve their issue. We did 
have some AOL customers reach out to AOL and it seems as though they 
also had trouble getting any reasonable level of support.


Hough, Aaron wrote on 12/11/2015 11:12 AM:
> The following problem has been acknowledged and yet, has been persisting for weeks unfortunately:
> "Apparently, email messages ( that with the domain ) bounces to and in some occasions, from multiple domains and comes up with Error 521. This has been escalated already. As of writing, we are still working towards a possible solution on this. We would like to apologize for the inconvenience this issue might have caused, but let us assure you that higher level technicians have been assigned to getting this resolved."

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