8.7.10 spam DMARC_FAIL_REJECT=9 domain disclaimer

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Paladinemishakal
Posts: 48
Joined: Sat Sep 13, 2014 2:37 am

8.7.10 spam DMARC_FAIL_REJECT=9 domain disclaimer

Post by Paladinemishakal »

Hi All,

I have some users complaining that their emails gets tagged as spam and looking into the email header, I noticed the following:

Code: Select all

X-Spam-Status: Yes, score=7.356 required=6.6 tests=[ALL_TRUSTED=-1,
	BAYES_00=-1.9, DKIM_SIGNED=0.1, DMARC_FAIL_REJECT=9,
	HTML_MESSAGE=0.001, HTTP_ESCAPED_HOST=1.125, T_DKIM_INVALID=0.01,
	T_KAM_HTML_FONT_INVALID=0.01, T_REMOTE_IMAGE=0.01,
	T_RP_MATCHES_RCVD=-0.01, T_SPF_HELO_TEMPERROR=0.01]
	autolearn=no autolearn_force=no
Authentication-Results: mail01.ong-ong.com (amavisd-new);
	dkim=fail (2048-bit key) reason="fail (body has been altered)"
	header.d=hlhl.com.sg
I have configured in Zimbra to include a domain disclaimer for outgoing email and I suspect that is the cause for the DKIM failure as the reason given is "fail (body has been altered)".

What are the option available to me so that I can configure the system to either:
1. Acknowledge the problem and not tag the email as spam?
2. Lower the scoring for spamassassin for the DMARC_FAIL_REJECT?

How do I do either of both?

Thanks & Regards.
Paladinemishakal
Posts: 48
Joined: Sat Sep 13, 2014 2:37 am

Re: 8.7.10 spam DMARC_FAIL_REJECT=9 domain disclaimer

Post by Paladinemishakal »

This one I spoke to my boss and he checked online and found that this is an very old bug with DKIM and html tag. We found out in our domain disclaimer, we use the <p></p> tag which is causing Spamassassin to mis-interpret the code. The solution is to find all the tag and change it to <br />.
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