Sounds like you're sending faster than your reputation allows based on the indicated AUP-1310 flag:
1300 - 1340 Spectrum limits the number of concurrent connections from a sender, as well as the total number of connections allowed. Limits vary based on the reputation of the IP address. Reduce your number of connections and try again later. Try sending slower to spectrum domains. ~ Matt On Thu, Nov 16, 2023 at 6:36 AM Polath, Kiran via mailop <mailop@mailop.org> wrote: > Hello Team, > > We at Broadridge Financial Solutions sends millions of email as financial > customer communication on behalf of our clients .We see our emails are > frequently getting blocked by charter.net > <https://urldefense.com/v3/__http:/att.net__;!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!JKmFFG4ngP-4XyYgED2wTJMNmpCUtvzsef8Cjf30jzoCpMphrLY02F15IU1VoEDbgHZAXDlJ3g4qNCa1POp5ZDyaZrFsUaFXKg$> > & rr.com, this is impacting our reputation . Can you take it as high > priority and remediate this as it is very important to our customers to > have this resolved. please find the below reasons > > 550 5.1.0 ...@... sender rejected. Please see > https://www.spectrum.net/support/internet/{hash}-{hash} for more > information. AUP#In-1310 > > rest > > 2023-11-15 02:52:11 EST > > charter.net > > 550 5.1.0 ...@... sender rejected. Please see > https://www.spectrum.net/support/internet/{hash}-{hash} for more > information. AUP#In-1310 > > rest > > 2023-11-15 02:52:11 EST > > wi.rr.com > > 550 5.1.0 ...@... sender rejected. Please see > https://www.spectrum.net/support/internet/{hash}-{hash} for more > information. AUP#In-1310 > > rest > > 2023-11-15 02:52:11 EST > > charter.net > > 550 5.1.0 ...@... sender rejected. Please see > https://www.spectrum.net/support/internet/{hash}-{hash} for more > information. AUP#In-1310 > > rest > > 2023-11-15 02:52:10 EST > > wi.rr.com > > 550 5.1.0 ...@... sender rejected. Please see > https://www.spectrum.net/support/internet/{hash}-{hash} for more > information. AUP#In-1310 > > rest > > 2023-11-15 02:52:10 EST > > wi.rr.com > > > > > > Regards, > > *Kiran Kumar Polath* | ICS-Email Operations | Broadridge Financial > Solutions (India) Private Limited > Adjacent to Cyber Towers, Hi-Tech City, Madhapur | Hyderabad 500081 > Telangana | India | m +91 8008297767| m +91 9154044691 > > <https://www.linkedin.com/company/broadridge-financial-solutions> > <https://twitter.com/broadridge> > <https://www.youtube.com/user/BroadridgeInsights> > <https://www.facebook.com/BroadridgeCareers> > > broadridge.com <http://www.broadridge.com/> > > > > > > > This message and any attachments are intended only for the use of the > addressee and may contain information that is privileged and confidential. > If the reader of the message is not the intended recipient or an authorized > representative of the intended recipient, you are hereby notified that any > dissemination of this communication is strictly prohibited. If you have > received this communication in error, please notify us immediately by > e-mail and delete the message and any attachments from your system. > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop >
_______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop