Oct 18

No particular order, this is what I am using these days and its been working really well.
b.barracudacentral.org
xbl.spamhaus.org
sbl.spamhaus.org
spam.spamrats.com
bl.spamcop.net

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One Response to “Best RBL servers to use in your mail server configuration”

  1. 1. admin Says:

    To use the Barracuda one you need to register , however its free.

    http://www.barracudacentral.org/rbl

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