AOL postmaster rejections.
blake at ispn.net
Thu Nov 19 19:30:17 UTC 2015
John Peach wrote on 11/19/2015 8:08 AM:
> Has anyone else with relatively large volumes of email seen a huge
> spike in rejections from AOL recently?
> There is no obvious reason why they are being rejected as it is a
> generic message:
> Nov 18 12:10:39 pp-serve02 sendmail: tAIHAcPT001383:
> mailin-04.mx.aol.com.: SMTP DATA-2 protocol error: 521 5.2.1 : AOL
> will not accept delivery of this message.
> Looking back through my logs, I can see we've always had a few, but we
> are now receiving a lot of complaints from users (physicians who cannot
> email their patients) and I see this, starting on Monday:
> and I already have 55 for today.
Same; started this week. Only appears to affect one of our servers.
Rejected messages by date:
> We have a whitelist / feedback loop set up with AOL, our IPs show clean
> with them and our DNS / reverse DNS has not changed and resolves
> We did raise a ticket with them, but it seems to have gone to the
> usual /dev/null.
Same here. I'm recommending AOL customers contact AOL for support.
> To reply off-list, please remove the VERP -nanog from my email address,
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