DMARC with MailScanner

Andrew Colin Kissa andrew at
Fri Apr 3 18:14:21 UTC 2015

On 03 Apr 2015, at 7:49 PM, Jerry Benton <jerry.benton at> wrote:

> Yes, I have also thought about that route with a SA score being assigned, but this was already requested and shot down by their devs. But a solution may be here:
> Damn this server is fast :)

We use the approach, the actual check happens in Exim and a header is added,
similar headers are removed by the Exim prior to adding to prevent spoofing.

Then we use a custom spam assassin rule to score based on the header
inserted by Exim.

For the checks to run within mailscanner you may have to use a spam assassin

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