6 Replies Latest reply: Jun 6, 2014 10:45 AM by Eric Root Branched to a new discussion.
redesigned Level 1 Level 1 (0 points)

Recently all the messages I send via Mail.app are showing a yellow error at the top:


Unable to verify message signature.

Mail was unable to verify the authenticity of the S/MIME certificate provided by "xxxx@xxxxxxxxxx.com". Message signed by this user may be coming from a different source.


(where xxxx@xxxxxxxxxx.com is my email address)


Issue is that Mail.app is signing the messages with a self signed root certificate.


I never set Mail.app to use a self signed certificate, nor can I find where to stop if from doing so.
I've deleted the certificate from the keychain, but it keeps adding it back in.

I've even tried deleting Mail.app and reinstalling Mavericks, but no luck.


I am sooooooooo furstrated!!!
Can anyone please please please help.

My email is unusable in this condition and I rely on it for work and more.
Anyone have any ideas how to fix this issue?






iMac (24-inch), OS X Mavericks (10.9)