MailScanner does rbl checks
ssilva at sgvwater.com
Wed Apr 20 18:23:07 IST 2011
on 4/20/2011 7:49 AM George Elgin spake the following:
>>> Does this mean I'm not doing any RBL checking at all now? Or will SA
> so with
> Spam List = SPAMEATINGMONKEY,CBL,MANITU,spamhaus-ZEN
> and obviously set up rules here
> spam.lists.conf:SPAMEATINGMONKEY bl.spameatingmonkey.net
> my objective is i don't want mails scanned that are clearly spam say FAIL more
> than one GOOD rbl ie.
> Spam Lists To Reach High Score = 2,, in other words i thought the defaults are
> way too conservative//
> my question though is "does this in fact cause MailScanner to NOT let SA spend
> time analysing these Mails ?".
> "would it be preferable to let postfix itself reject RBL'ed mails ?"
> also for
> [gelgin at gfee MailScanner]$ grep skip_rbl_checks *
> spam.assassin.prefs.conf:# skip_rbl_checks 1
> is 1 the default or do i uncomment if i don't want checks ? unlike amavis i am
> not getting a good feel that RBL checks are really happening...
> >> still do that?
> > Yes, SA will still do those checks.
> > That's the current recommended practice - using MailScanner to check
> > RBLs is only advised in cases where you don't wish to use
> > SpamAssassin but do wish to check multiple RBLs.
> I've always done it the other way (MailScanner does the checks) but times
> change. To reverse it, is it as simple as changing these from
> Spam Lists To Be Spam = 1
> Spam List = spamhaus-ZEN (or whatever one has in there)
> and in the spam.assassin.prefs.conf setting skip_rbl_checks to 0 (zero)?
> Will the "Spam Lists To Be Spam" setting matter if spamassassin is doing
> the checks instead of MailScanner? If so, should that become zero as well?
If you trust the RBL, let the MTA or a milter reject. Once you receive and
close the connection, all you can safely do is discard, as any rejects after
this point can go to any innocent spoofed domains.
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