IT Legends - Tech in Connecticut

A few weeks ago, one of my clients reported he had a bounced email to his client. It looked to me like it was a standard server-based spam misidentification; these things happen. So I followed the instructions I was led to in order to remove my clients’ email server from AT&T’s blacklist, which involved checking to make sure the server wasn’t on a few public DNSBL servers. His server was not, so I submitted it on an AT&T website and asked to remove it. I didn’t start to make a connection between AT&T and One Communications until a second and third client reported the same issue. Finally, my fourth and last One Communications customer client notified me of the same problem. So, since none of the servers were ever published on any of these well-known public DNSBL servers, I can only assume AT&T decided to blacklist all email (more…)