Thanks for the reply. Our situation is that they have an SMTP IP that’s on an RBL that we use, and their sender(s) can't send to our customer(s) when Suddenlink sends the emails through that SMTP.
I could whitelist the specific IP, but if they have a compromised account abusing the Suddenlink SMTP, I don’t want to open our server up to getting their spam and having to filter it. Plus, if they do have a compromised user account it may cause multiple SMTP's to get onto various RBL’s, so it seems best for Suddenlink to take the reins here... I’m kind of reverse troubleshooting this with their customer because our customer is being contrary and wouldn’t even put forth the effort to provide us with the bounce error. I’ve advised the Suddenlink customer to contact the email administrator, but not sure how much traction that will get. Thanks. Sincerely, Mike On Nov 20, 2020, at 2:08 PM, Anne P. Mitchell, Esq. via mailop <mailop@mailop.org> wrote: > Is there anyone with Suddenlink on this list, or does anyone have any > contacts with them, if so please contact me off list. It seems that emails > sent to their postmaster account bounce. Having *just* gone 'round with them on this for a client, and (after many emails and phone calls) getting a response, what we have learned is that you actually need to speak with Synchronoss - Synchronoss is their inbound border patrol, so to speak, and it is Synchronoss who is blocking any email access to Suddenlink accounts. Unfortunately I don't have a Synchronoss contact for you - in fact if anybody here does, please let me know! Anne -- Anne P. Mitchell, Attorney at Law CEO, SuretyMail Email Reputation Certification Dean of Cyberlaw & Cybersecurity, Lincoln Law School Author: Section 6 of the CAN-SPAM Act of 2003 (the Federal anti-spam law) Legislative and Legal Consultant Board of Directors, Denver Internet Exchange Chair Emeritus, Asilomar Microcomputer Workshop Former Counsel: Mail Abuse Prevention System (MAPS) Location: Boulder, Colorado _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
