Although I doubt it will help much, you can try email addresses from the RFC: http://www.faqs.org/rfcs/rfc2142.html
Kurt On Fri, Feb 2, 2018 at 7:16 AM, Mayo, Bill <bill.m...@pittcountync.gov> wrote: > 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
