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SMIME Mails from Outlook 2010 can't get decrypted on Mac Mail or Entourage
Today we dicovered a problem with encrypted Mails.
Sending with Outlook 2007 to Mac Mail oder Entourage works well, but if you use a Outlook 2010 Client for encrypting a mail, this mail can't be decrypted on a Mac. In the other direction it works all well, so Mac can send encrypted to Outlook 2010 that can decrypt the mail.
Anyone any idea?
p.s. of course we tried diferent PCs and Macs
Sending with Outlook 2007 to Mac Mail oder Entourage works well, but if you use a Outlook 2010 Client for encrypting a mail, this mail can't be decrypted on a Mac. In the other direction it works all well, so Mac can send encrypted to Outlook 2010 that can decrypt the mail.
Anyone any idea?
p.s. of course we tried diferent PCs and Macs
pkcs7-mime is correct, but x-pkcs7-mime has been around longer. It is possible that pkcs7-mime is not being recognized by Mail.
Easy to test: locate one of the affected emlx files (in a messages folder a few layers deep in ~/Library/Mail/), edit the header with textwrangler or another text editor (to add the"x-"), and see mail can read it now.
Easy to test: locate one of the affected emlx files (in a messages folder a few layers deep in ~/Library/Mail/), edit the header with textwrangler or another text editor (to add the"x-"), and see mail can read it now.
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the one who can be decrypted correctly (send from Outlook 2007)
Content-Type: application/x-pkcs7-mime; smime-type=enveloped-data;
Content-Disposition: attachment; filename="smime.p7m"
Content-Transfer-Encoding:
Mime-Version: 1.0
the one what is noc decrypted (send with Outlook 2010):
Content-Type: application/pkcs7-mime; smime-type=enveloped-data;
Content-Disposition: attachment; filename="smime.p7m"
Content-Transfer-Encoding:
Mime-Version: 1.0
So Content rype differs, on Outlook 2010it is not: application/x-pkcs7-mime