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DKIM-Signature header, Signature Timestamp "t=" not correct #180

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AldeaAlexandra opened this issue Oct 14, 2015 · 3 comments
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DKIM-Signature header, Signature Timestamp "t=" not correct #180

AldeaAlexandra opened this issue Oct 14, 2015 · 3 comments
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bug Something isn't working

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@AldeaAlexandra
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Issue :
The signature timestamp from the DKIM-Signature header , generated after Sign-ing a MimeMessage with a DkimSigner is computed based on local machine time (DateTime.Now), and not on UTC time zone, as specified in RFC6376.

I encountered this problem while testing my DKIM signed emails, sent to a Postfix mail server installed on a Fedora virtual machine, with opendkim mail filter, and got an error from opendkim : "signature timestamp in the future".
The problem is in MimeMessage.cs , line 1432.

Could the problem be fixed?
jstedfast added a commit that referenced this issue Oct 14, 2015
@jstedfast
Use UTC time rather than local time when computing DKIM timestamps
157188b 
Fixes issue #180
@jstedfast
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Thanks for the bug report!

@jstedfast jstedfast added the bug Something isn't working label Oct 14, 2015
@jstedfast
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I've released MimeKit 1.2.14 to NuGet with the fix for this bug.

@breedbekkikker
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Great! Thanks a lot!

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@jstedfast @AldeaAlexandra @breedbekkikker