Dmitri,

> I am just wondering what are the advantages of using Amavisd over just
> using Spamassassin in daemon mode (spamd)
> I mean spamd has support for dcc, razor, pyzor, dnsrbl, SPF, DKIM
> You can also configure your own regex rules to check headers
>
> What does the Amavisd add that Spamassassin does not already have?
> I am only interested in spam prevention, not a virus scanning.

Speaks SMTP (or LMTP) natively, no need for spawning spamc or
a sendmail-program, avoids additional mail contents transfers.

Calls SpamAssassin once per message, regardless of a number of
recipients of a message (average factor of 1.5x speedup for free!)

Controlled host load based on a fixed number of content filtering
processes.

DKIM signing;

DKIM or DomainKeys verification (regardless of mail size or per-user
bypassing of spam checks, i.e. even for mail not passed to SpamAssassin)

pen-pals soft whitelisting;

reliable bounce killer (does not kill bounces to our genuine mail)


mouss wrote:
> amavisd-new can also take decisions: block, quarantine, redirect, ...
> (spamassassin doesn't care about delivery: it is here to classify the
> message).
>   See http://www.ijs.si/software/amavisd/#features

Thanks. I have just updated and face-lifted that section a bit.

  Mark

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