In the Options dialog I selected S/MIME settings for the user. I have
selected the personal certificate for sign and encryption purposes signing
with SHA1 method and encrypting with 3DES method.
I hav also checked the settings from Internet Explorer you suggested and
YES, I'm able to export the certificate private key.

Thanks in advance

"Brian Tillman [MVP - Outlook]" wrote in message
...
"mmblanco5" wrote in message
...

I have been facing a weird problem with some verisign certificates in
outlook 2003. The problem goes like this. I configure a certificate which
is able to sign and ecncrypt e-mail. I´m able to sign mail with this
certificate. The receiving party is able to read the signed mail and even
able to reply with an encrypted mail to te original sender. However, once
the original sender receives the encrypted mail Outlook displays an error
indicating that the underlying criptography platform is unable to find
the name of the digintal ID (the error is not exactly that 'cause I'm
translating it from other languague but it goes about very simmilar to
that)
Does anyone have a clue of why this might be happening?

Describe the settings you have on ToolsOptionsSecurity and on the
Settings dialogue available from there. In Internet Explorer, click
ToolsInternet OptionsContentCertificates, does you r cert show in the
"Personal" tab? If so, select and click Export, then Next. Do you see two
radio buttons, one labeled "Yes, export the private key" and the other
"No, do not export the private key" and is the Yes button selectable?
--
Brian Tillman [MVP-Outlook]