[CentOS] SpamAssassin under CentOS-6.4

On Sat, 13 Jul 2013 00:20:51 +0200
Timothy Murphy wrote:

> I wonder if anyone is actually running SpamAssassin
> with Postfix/Amavisd-new under CentOS-6.4 .
> I have followed the instructions in
> <http://wiki.centos.org/HowTos/Amavisd>
> but as far as I can see SpamAssassin is not working.

I run spamassassin and postfix on my mailserver, but don't run amavisd.

spamassassin adds a header to incoming email that looks something like this:

X-Spam-Status: No, score=-103.5 required=5.0 tests=AWL,BAYES_00,HTML_MESSAGE,
	RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,USER_IN_WHITELIST autolearn=ham
	version=3.3.1

If the incoming message meets the points threshold that you have set to
determine that the message is spam (defaults to 5.0) then the default setting
is that the word [SPAM] (including the square brackets) is prepended to the
message subject like, like this:

Subject: [SPAM] Buy Viagra from a Nigerian Prince

You can then configure your mail client to trash or sort email based on the
presence or absence of the [SPAM] tag in the subject line.
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