We are having emails sent to Earthlink being intermittently rejected with the reason “550 ERROR: No or mismatched reverse DNS (PTR) entries”. We have done quite a bit of troubleshooting on this, and the problem does not appear to be on our end. I actually have logs that show 2 consecutive messages where the first one is accepted and the second one rejected. I also see “421 Load too high” messages in the log from Earthlink when these happen.
I am trying to figure out how to contact Earthlink to get some assistance, but am striking out with how to contact them. The have a special page if you are getting a “blocked by EarthLink” response, but that doesn’t apply here. There contact page has chat support that requires you to provide an Earthlink account. Does anybody know how to get in touch with someone at Earthlink that could actually help with this problem? Bill Mayo
