Hey so Im trying to setup an email encryption certificate for one employee. He previously had one that expired a few months back. We have our own internal CA (Server 2003R2, Exchange 2003 SP2) and it works fine for 30 other people that use email encryption (just tested another user which works fine). Gone through the normal process and it installs the certificate with no problems. After publishing to GAL I can send from his Outlook to me and the encryption works fine. On my laptop office 2007 cachedmode, I download address books, try to send him an email encrypted and it says theres no valid certificate for him.
So I thought well maybe its an Outlook 2007 thing. Tried from other users that are on Outlook 2003 online or cached mode and they get the same thing. Now if I go on the Termservers and send encrypted to him I dont get the warning and the email sends. However, he then gets the message saying digital id not found when trying to open the message.
I've created 3 new certificates for this user with no luck. I've gone into his user account in AD and removed the failed certificates and created a new one-no luck.