DKIM verification failures due to message body change when using HTML email

From: Quanah Gibson-Mount <>
Date: Mon, 03 Dec 2012 09:11:13 -0800

I've gotten a few reports of DKIM verification failures (DKIM verification
in this case is being done by amavis, OpenDKIM is doing the signing). The
following forum thread details the issue, and includes three example
messages (2 failures, one success).


The two failures are both HTML based emails, and the once success is plain
text. I found this thread:



where it looks like someone found an issue with mail using HTML that is
signed by OpenDKIM. Is this a bug on the OpenDKIM side or in the Amavis
verification side of things?


Quanah Gibson-Mount
Sr. Member of Technical Staff
Zimbra, Inc
A Division of VMware, Inc.
Zimbra ::  the leader in open source messaging and collaboration
Received on Mon Dec 03 2012 - 17:11:55 PST

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