Prevent amavis from obliterating spam headers

[Quanah Gibson-Mount]

--On Friday, January 30, 2015 11:23 AM +0100 Joolee <amavisd at joolee.nl> 
wrote:

>
>
> There is of course a notable difference between keeping possibly
> untrustworthy headers and using those headers as part of the spam
> filtering process.
> Are you perhaps refering to client software, using the 'is-spam' header
> for separating spam from ham? In this case, it is possible the
> untrustworthy headers will be used instead of the ones added by your own
> spamfilter. This might be solvable by prepending either your own or the
> third party headers with a known prefix.

The second case is referring to a redirect.  According to the SA 
documentation, a redirect should not obliterate the existing SA headers 
(<http://wiki.apache.org/spamassassin/ResendingMailWithHeaders>).

It appears Amavis is violating the SA design.

--Quanah

--

Quanah Gibson-Mount
Platform Architect
Zimbra, Inc.
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