In troubleshooting "connection timed out with <mail exchanger>" errors on my email server. I searched the various Internet blacklists for my static IP address range (a /30 class-C subnet with 4 static IPs). Low and behold, I found that the entire /10 Class-A subnet is blacklisted, meaning that the ~4.2M IPs in the range, including mine, cannot send email.
How do I get ATT to resolve this (blacklist entry was reported to APEWS in 9/2010)? I pay a premium for this small number of static IPs and it appears that some bad customers have ruined it for the rest of us. Please advise.
Thank you for participating within the AT&T Business Community. We will need some additional information to be able to better assist you with your emails. We have sent you a Private Message with instructions on how to send us the required information.