On Thu, Jan 02, 2003 at 04:09:42PM +0000, Simon White wrote:
> 02-Jan-03 at 11:04, Brian (brianbsboss.com) wrote :
> > I am trying to learn more about Postfix and I'd like to eventually move
> > away from using sendmail. In order to do this, I have to make Postfix
> > work with cyrus and the daemonized version of Spamassassin (spamd).
> > Currently I accomplish this with a milter in sendmail.

> Get the latest Postfix version, read up on FILTER_README and other
> relevant docs, you'll see that it's very easy to integrate with
> SpamAssassin.

True as far as it goes. However, there is a major difference in the
handling of a SA-rejected mail: using the sendmail milter interface, the
spam is rejected with a 5xx at the end of the SMTP transaction. Postfix,
using the content filter interface, accepts the mail for delivery (250 at
the end of the transaction), and then will either silently discard the
message or else send a bounce - which is almost guaranteed not to get back
to the spammer.

If this difference is not important to you, then have fun. If it is, then
you'll be disappointed.

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