OT: Moving URIBL from SA to MTA

[Steve Campbell]

I could have sworn this was discussed before, but couldn't find it so:

I'm considering moving URIBL to my MTA instead of scoring it in SA. A 
quick scan of the emails that are hitting the rule indicates all most 
all of them are true spam. I might be willing to accept a false positive 
once in a while (maybe?). I don't block email with SA RBLs other than to 
score them.

Can anyone throw some light on their experiences with this?

What do I need to add to my sendmail.mc file to enable this if I DO move 
it to my MTA?

Thanks for any help

Steve Campbell