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After upgrading to Yosemite, Apple Mail no longer recognizes my S/MIME certificate. This was working in Mavericks. I've checked Keychain and the certificate is valid, even evaluated it as S/MIME for my email address and it passed. However, emails I send do not contain the certificate and I cannot figure out any way in Apple Mail to sign them.

Certificate evaluates successfully

I've read Apple's help article and it says an icon should display next to the From: field on new emails. However, I only use a single account with Apple Mail, so the From: field doesn't display. If I do add another account, just so that field displays, no signing icon is shown when I create a new email.

Any help would be greatly appreciated.

Jon
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1 Answers1

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I solved this problem by selecting my private key under my certificate (issued by Comodo) and in the get info window:access control tab deleting Mail.app from the "Always allow access..." list and adding it back immediately. When I saved the changes (to the keychain) and opened Mail, I was able to sign my messages again.

drpj
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