Comcast FBL open to the public

The Comcast FBL has been moved out of beta testing an into production. ISPs and senders can sign up for the FBL at
All of the applications are currently reviewed by hand, so there may be some delay as they deal with the launch rush. Please be patient. If you currently have a FBL through the beta program, you do not need to do anything, the FBL will continue.


  1. Anthony Edwards says

    Thanks for the heads up on this, I have applied for a feedback loop for Easynet UK and the application is in progress.

  2. James Hoddinott says

    “…Please use /24 or higher.” – yikes, a /24 is the minimum range I have in my list. Breaking a /14 will be…fun!

  3. J.D. says

    James: talk to Comcast, they can help with larger netblocks.
    (Comcast’s mail team isn’t some big scary Lovecraftian monster that will stomp you as soon as look at you. You can talk to them. Really. Just…be polite.)


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