Hi

We have a large public folder, with a lot of Contacts, with digital id, and certificates.
Sometimes a user get this messages, when sending an email, to one of those contacts:

Microsoft Outlook had problems encrypting this message because the following recipients had missing or invalid certificates, or conflicting or unsupported encryption capabilities

To fix this, we (on the user session, that have this problem) go to the public folder, open the contact, and go to certifcate, and show properties for the certificate. (it take a little time), after this the user can send mail to this contact again.

It only happen for one user at the time, so when one user have this problems, other can send to this contact with no problems.

Could any one point me in the right direction?

Office is 2010, and are fully updated with microsoft update.

Hi,

Please do the following steps for the problematic user to have a try:

1.On the Tools menu, click Options.

2.Click the Security tab.

3. In the Default Setting list, make sure that the correct security profile for the digital ID that you want to use is selected. To verify your certificate settings, click Settings. You can click Choose, and then click View Certificate to view your certificate details.

4. Under Digital IDs (Certificates), click Publish to GAL, and then click OK. This will republish the correct certificate to the global address list to make sure that users are addressing you with the correct digital certificate.

5.Click OK when you are prompted that your certificates were published successfully.

6.Click OK to exit the Options dialog box.

Regards,

Hi 

Thanks for you reply.

This is an Office 2010 installation, not office 2007 :).
And its for external senders, not internal :)

So i don't think you answher will work :(

Regards Kenneth Dalbjerg

Hi,

Sorry for my delay. Have the issue been resolved?

According to the further research, I understand that there is an issue when sending encrypted to external contacts which are saved in Public Folder for all users. Is it right?

If that is the case, please check the following points to narrow down the issue:

1. Confirm whether the issue only happens to one specific user instead of one random user.

2. Please use the Outlook in Online mode and send test messages to this Public Contact to check whether the issue can be reproduced.

3. Also try to start Outlook in safe mode to have a try.

Regards,

Hi

No this haven't been resolved :(.

1. This happen for a random user, one day it one and the other days its another one.

2. It's on a terminalserver, so every user is running in online mode. (We have 4 servers in total, and it is not specific one that have this problems, it is all 4.

Regards Kenneth Dalbjerg