#673 ✓fixcommitted
Matt Gray

HTML email garbled when using "Forward as Attachment" and S/MIME signature

Reported by Matt Gray | March 14th, 2014 @ 01:58 PM


  1. Given that I have a valid S/MIME certificate for signing and encryption
  2. Find an HTML email (e.g. typical marketing email with embedded images)
  3. Select Message > Forward as Attachment
  4. Ensure that signing is selected and encryption is not selected
  5. Send the message to yourself
  6. View the message
  7. The message's partial headers are shown and no To/From markup is shown, see screenshot
  8. Select the original HTML email from step 2
  9. Select Message > Forward as Attachment
  10. Select any other combination of signing and encryption
  11. Send the message to yourself
  12. View the message
  13. The message is forwarded properly.

MailMate details

My system: MailMate/3905 MacBookPro11,3/x86_64/8/10.9.2

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Mac OS X email client.

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