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Outlook 2002 (XP) client cannot open Digitalally Signed Emails - HOT

Posted on 2006-07-10
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Last Modified: 2008-01-09
I have one user on my network who is unable to open ANY email that has been digitally signed (not encrypted). He is using Outlook 2002 SP3 via an Exchange connection. If he opens up his mailbox through Outlook Web Access, he CAN indeed open the digitally signed email and read the contents of the message. When he attempts to open the email in his Outlook client, he does get an error which is:

"Microsoft Outlook could not sign or encrypt this message because you have no certificates which can be used to send from the email address "users@mydomain.com"- generic, not his real email address, durr.

This error comes up when he attempts to OPEN the email. His OS is Windows XP SP2.

Any ideas? I succesfully opened this email from my machine which is Outlook 2003 (and I do not have a DCert) and from another client which is running the same version of Outlook- and it opened with no problem. I also cleared his SSL State.

Please help!  
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Question by:Trihimbulus
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war1 earned 500 total points
ID: 17076880
Greetings, Trihimbulus !

There is a corrupt file in user's Outlook or a program is interfering with Outlook.
1. Reset the Outlook toolbar template. With Outlook close, do a search for and rename outcmd.dat file. Restart Outlook and a fresh outcmd.dat file will be recreated.

2. Register an important Outlook file. Go to Start > Run and type regsvr32 OLE32.DLL
Do the same for INETCOMM.DLL

3. Disable Outlook Addins.  Go to Tools > Options > Other > Advanced Options > Addin Manager or COMM/Addins and disable the addins.

4. Create a new Outlook profile.
http://www.outlook-tips.net/howto/profile.htm

5. Repair Outlook. With Outlook open, go to Help > Detect and Repair.

6. If no joy, reinstall Outlook.  Go to Add/Remove Programs and highlight Microsoft Office. Click on Install/Uninstall.  A menu will pop allowing you to choose repair or reinstall.

http://support.microsoft.com/?kbid=291614

Best wishes!
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Author Comment

by:Trihimbulus
ID: 17081674
Let me ask you this. This particular user uses a Home email POP account through Outlook and another profile which is for his work email (to the Exchange server). He recently added all of his contacts from his PAB to his Outlook Address Book. Is there a possibility that he has the senders with Digi ID's saved in his PAB, and somehow- there is a conflict with him keeping them in his OAB??? (if that makes any sense)
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Expert Comment

by:war1
ID: 17083087
>> Is there a possibility that he has the senders with Digi ID's saved in his PAB, and somehow- there is a conflict with him keeping them in his OAB???  >>

Yes, that make sense.  One of the digital ID could have been copied over incorrectly.  Check the digital signatures in OAB.
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Author Comment

by:Trihimbulus
ID: 17083414
Ok- that worked! He can now read the contents of the emails - BUT;

Everytime the email is highlited in the view pane, he sees the "Microsoft Outlook could not sign or encrypt this message because you have no certificates which can be used to send from the email address "users@mydomain.com" message come up again. Then once he clicks OK another couple times, the email opens and he can read it. He has never and does not use a personal Digital Certificate. Why are we getting this message? Arghh
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Author Comment

by:Trihimbulus
ID: 17090853
help
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LVL 97

Expert Comment

by:war1
ID: 17091849
Trihimbulus, I am out of ideas.  You may want to post a new 20-pointer question to this thread.
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Author Comment

by:Trihimbulus
ID: 17092519
I will start a new question- your fixes helped me get the emails to display.  Thanks!
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LVL 97

Expert Comment

by:war1
ID: 17094005
Trihimbulus, thanks for the points.
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