Email sent from <t-online.de> to my account on <san.rr.com> is being rejected with error
"550 5.1.0 <email@example.com> sender rejected AUP#I-1330"
It has worked successfully for the last 20 years or so, recently started failing.
I am sorry to hear you are having trouble with that.
If you are still experiencing this please do contact our support teams directly.
Spectrum-Social Media Customer Care
Lead Moderator-Community Forums
I have contated the support team and they have been no help at all. The problem also occurs when mail is send from <gmx.de> and is related only to a server named <dnvrco-cmedge01.email.rr.com> that rejects the senders. That server is owned by Charter Communications and has never appeared in the expanded header of any email I have ever received. The support reps I speak to know nothing, and claim the "engineers" point to the sender, when the error message clearly says "server dnvr... says sender rejected..." It is 2 different sender domains being rejected. Is there an email address for the postmaster where I can send my error messages and get an accurate technical evaluation of the problem?