email cert is not trusted by recieving party

I’ve got comodo certificates for two of my email addresses.

computer is os x 10.9.3

installed the certificates in Chrome which automatically inserts them in the Keychain.

Apple Mail shows the certificates as valid and trusted.

But whenever I email someone - even myself - the message comes through as not trusted.

Hi

Have you checked out the knowledge base for an answer?

https://support.comodo.com/index.php?/Knowledgebase/List/Index/18/email-smime

Garry

There was an errant older certificate that was getting sent. The older certificate had been revoked, but not removed from the keychain.

All is good now.