[Tickets #12445] Activesync breaks S/MIME signature

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Ticket URL: http://bugs.horde.org/ticket/12445
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  Ticket             | 12445
  Created By         | alberto at aftnet.net
  Summary            | Activesync breaks S/MIME signature
  Queue              | Horde Framework Packages
  Version            | Git master
  Type               | Bug
  State              | Unconfirmed
  Priority           | 2. Medium
  Milestone          |
  Patch              |
  Owners             |
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alberto at aftnet.net (2013-07-10 20:35) wrote:

Sending email using ActiveSync seems to modify the message's content,  
with the result that signature verification fails and clients flag the  
message as potentially forged.

I've had this happen sending email with Outlook 2013, iOS and Windows  
Phone 8 devices connecting via ActiveSync (my horde installation is  
set to version 14.1).

Sending mail directly via SMTP works fine, so it's not a misconfigured MTA.