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[Fed-Talk] Apple Mail & S/MIME
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[Fed-Talk] Apple Mail & S/MIME


  • Subject: [Fed-Talk] Apple Mail & S/MIME
  • From: Joshua Krage <email@hidden>
  • Date: Wed, 5 Nov 2008 18:25:57 -0500

Has anyone seen the following behavior and identified a root cause or a corrective action?

Several of our processes generate an S/MIME (encrypted/un-signed) email message, which several of us read in Apple Mail (Leopard). The message shows up just like an un-encrypted message, and doesn't show the lock icon. Other encrypted messages show the (visual, not email) Security header with the lock icon.

Senders using their (varied) email clients to send a message show the lock. Perhaps of consequence is that the keychain also has the sender's certificates.

The messages without the lock are sent from a scripted process, one of which uses OpenSSL in FIPS mode. These messages do not have an associated certificate for the sender (output-only email process).

Thunderbird and MS Entourage (2008) have no problem showing the lock icon. Seems purely an Apple Mail issue.

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