Mollom has a lot of limitations, and I am not in a position to pay right
I haven't hit the limits of the free version of Mollom yet but that is in the back of my mind. Mollom has blocked over 4,000 submissions on one site in the past two months. The limit seems to be on "ham" noit "spam". The problem with http:bl is that it is ip driven and not content. One of my users shares an IP with a trojaned machine and thus got on the blacklists.
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Rev. Jim Tarvid, PCA
Galax, Virginia
http://ls.net
http://drupal.ls.net
http://crossleft.org