RBLs - in MailScanner, SpamAssassin, or right in Sendmail?

Ken ka at pacific.net
Thu Mar 1 07:26:04 CET 2007

Chris Yuzik wrote:
> Hi Everyone,
> Putting some final spit and polish on the new server before beginning 
> to move users over to it in the next few days.
> As I'm editing and tweaking countless lines of .conf files, the 
> thought came to me *gasp* that there just might be a better way to do 
> things than the way I've always done them.
> So. Best practice. 
depends on your userbase, you management's thinking on email (that is a 
> RBLs in MailScanner.conf? 
not usually....
> Or better in SpamAssassin? 
more often this is the recommended way - give them a weight.
> Or better yet in Sendmail.mc? Obviously I want the magical sweet spot 
> where I block 100.0000% of spam, with 0.000000% false positives. ;-)
Amen. Maybe Zen? Maybe Surbl? I'd say at least SBL. Opinions on this get 
religious, so just test in SA and if something hits 100% for YOU, then 
put it into something that blocks at sendmail, be it a milter or whatever.

> Furthermore, which RBLs should I use? Others? Not some of these? I was 
> considering:
> 1) Spamhaus-Zen?
> 2) Spamcop.net
Yes, in SA
> 3) NJABL
Some parts, I think are in Zen, but yes also in SA
> 4) safe.dnsbl.sorbs.net

> Thanks,
> Chris
Just my $.02, from some experience with ~300k emails a day at a rural 
ISP. ymmv.
Ken A

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