DKIM signing is not working correctly for HTML emails
Problem reported by Pawel Lesnikowski - October 31, 2014 at 3:49 AM
Submitted
SmarterMail Version 12.5.5409 incorrectly computes body hash for the HTML messages.
 
Both Gmail:

smtp.mail=xxx@yyy.com;
       dkim=neutral (body hash did not verify) header.i=@

and port25:

DKIM check details:
----------------------------------------------------------
Result: fail (wrong body hash: expected
SrMeRtIDoCfQG1lFDMnuwN046oLDt9OJYViCyFIEdoA=)
 
report incorrect body hash.
Plain text messages are correctly signed, I can provide port25 report on request (it contains correctly canonicalized body, so you can check your implementation).
 

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Henry Timmes Replied
Take this man's word as gospel - Most intelligent person I know when it comes to implementing authentication with email standards.
www.unlocktheinbox.com

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