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AT&T Moves Toward Mail-Server Whitelist

Posted by timothy on from the is-it-better-than-spam dept.

Gunfighter writes "In an apparent attempt to quelch the amount of incoming spam, AT&T has asked their customers, partners, and business clients to provide them with IP addresses of their mail servers. All other mail will be discarded. To quote the message: "... In order to continue to allow email to AT&T you need to provide the IP addresses of all your outbound email gateways. If you do not respond immediately, your access may not continue.""

3 of 447 comments (clear)

  1. I work for AT&T! by Anonymous Coward · · Score: 4, Interesting

    And it's been blocking email I send to my work account! Now I understand what's going on.

  2. Hypocritical--ATT is a major Spam Service Provider by dananderson · · Score: 4, Interesting

    I find this very hypocritical. ATT is a major service provider for spammers, mostly through their broadband service. I know because I have my own blacklist and there are hundreds of Class C blocks with ATT. ATT is very lax with enforcing any AUP they may have.

  3. RMX and SPF:Sender by RT+Alec · · Score: 4, Interesting

    The biggest problem is ATT will have to administrate this. If a (legitimate) domain switches IP addresses on their outgoing SMTP server (it happens), ATT will have to deal with it by setting up some kind of structure to accomodate such changes.

    Forcing domains to declare from what SMTP host legitimate mail will come from is actualy a good idea. It has been proposed before, in the form of SPF:Sender and RMX. Either would do the job (technical quibbles aside), and would accomodate the end goal ATT is trying to achieve.