spamassassin 2.53 & MailScanner

Steve Freegard steve.freegard at LBSLTD.CO.UK
Fri May 9 13:20:14 IST 2003

I've got SA running the RBL checks (with Razor2 & DCC) - but I found that SA
2.53 doesn't include the Infinite-Monkeys open-proxy RBL, so I have
MailScanner doing this RBL check instead - which has already picked up a bit
of spam that SA hasn't with no false-positives so far.

As an aside, is Pyzor any good? - I notice SA scores higher for Pyzor
listings than Razor2, and wondered whether it was worth installing as I
already have Razor2??

Kind regards,

Steve Freegard
Systems Manager
Littlehampton Book Services Ltd.

> ----------
> From:         Kevin Spicer
> Reply To:     MailScanner mailing list
> Sent:         Friday, May 9, 2003 8:06 AM
> Subject:      Re: spamassassin 2.53 & MailScanner
> >By the way, when RBL's are used with either MailScanner or SpamAssassin
> >(don't use them with both!) they also are used only for scoring.  They
> >don't reject/block messages.  I believe using them with sendmail will
> >actually reject the message but that isn't what happens when called
> >from MailScanner/Spamassassin.
> That wasn't quite my understanding... I'm pretty sure that...
> RBLS with sendmail reject mail (as you said.)  On a busy server choosing
> a good RBL to use with sendmail  can be very worthwhile since the mails
> are blocked before being received in full, which saves cpu cycles and
> bandwidth.
> RBLs with SpamAssassin just contribute to the scores.  Incidentally, the
> fact that some RBLs are better than others is reflected in the scores
> that SA gives each of them - if worried about this causing false
> positives then just tweak the scores a bit lower.
> RBLs with MailScanner simply switch the SPAM flag on, match one RBL and
> your mail is tagged as SPAM.  IMHO using RBLS directly within
> MailScanner is only useful if you don't have SA installed.
> I use razor2, DCC and pyzor, as well as RBLS within SA, The hardest part
> of the install was setting up appropriate firewall rules to allow DCC
> etc. out (and even that is trivial once you find out the port numbers).
> BMRB International
> +44 (0)20 8566 5000
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