Posts for May, 2012

AT&T Email

May 17, 2012 Posted in Email

Update: I resubmitted a unblock request with this post, AT&T has confirmed that they will remove the block. It was quick! Thanks!

AT&T blocked all emails sent from one of my servers, which I’m sure was a mistake, because the server hosts several forums and only sends notification emails to registered members, e.g., when a member asked a question on, if someone replied to his question, the forum will send a notification email. To be on the safe side, I have never sent out a single newsletter from these forums.

According to email server log, I submitted unblock requests here two times in the last two months, but no actions, no response whatever, just like a black hole. I’m sure they didn’t look into the problem at all, because anyone who read the emails or checked my server will know it’s a clean server.

Can anyone bring this post to AT&T admin’s attention? Your simple block has brought lots of inconvenience to our forum members (your customers).

(host[] refused to talk to me: 550- blocked by ldap:ou=rblmx,dc=att,dc=net 550 Error – Blocked for abuse. See