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AOL blocking business email after ISP change

We recently changed our ISP so of course we got a new WAN IP and Reverse Lookup. Ever since then we are unable to send email to any AOL client as the email hangs in our Exchange 2010 queue.
On AOL's site we have tested our reverse DNS and it comes back fine and tested with MXTOOLBOX and everything comes back fine as we are not Blacklisted there. We have filled out form after form with AOL and we get an email saying they will contact us but never do.

It has been two days now and when we call we can't get anywhere because they say we are not AOL customers. It is important for business purposes that we can send email. Does anyone else know a quicker way to resolve this? Some number not typically listed or other method?

ASKER CERTIFIED SOLUTION

Amit

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regsamp

ASKER

But AOL seems to be the only one we are having issues with. It gives a 4.4.2 message in the queue and that it will keep trying.

Amit

4.4.2 means issue with next hop. After Exchange what is the next hop or server it is trying to deliver. You might need to focus on that server. I don't think it is AOL issue. looks more DNS issue.

regsamp

ASKER

Let me double check the error as I am remote right now unfortunately. I am not suspecting DNS because we are not having any other issues with any other clients and the issue we were having were dealing with 451-65.113.183.34 is blocked domain (failure) and being blocked.

regsamp

ASKER

It looks like the messages just cleared believe it or not. Thank you for help.

Amit

Good to know, it is fixed.