I woke up this morning, EU time, to hear "AOL's MX record is missing!". I shot awake and poked around and yes, sure enough it was in fact missing. After some backing and forthing with the AOL NOC, and some undeserving folks getting bounced out of bed at 5AM, it's back and functional. So if y'all have clients wondering why they had a rash of weird bounces from AOL, that's why.
I know I'm going to be explaining this several dozen times today to my own clients...
Does Hotmail use the SBL (Spamhaus Block List)?
6 hours ago
Thanks for catching it! I bet that was an odd conversation with the NOC.
This may help with the explanation:
http://www.returnpath.net/blog/received/2010/12/mx-record/
Thank you, JD. Thanks for the linkage, too. :)
we have received some blocks at AOL 2 days back and don't understand the reason for these blocks. All the email addresses were genuine email addresses.
Can anybody please confirm that if the above MX issue is the cause for my emails to be hard bounced.
They block mail for a lot of reasons. The bounce code should tell you. Did you read it? You should probably open a ticket and ask AOL if reading it did not help.