Email sent from <t-online.de> to my account on <san.rr.com> is being rejected with error
"550 5.1.0 <firstname.lastname@example.org> 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