To Obtain a User's Certificate via Signed E-Mail
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Have the user send their certificate to the author of the file in a signed e-mail.
The user must set the Secure Message Format to S/MIME and check the Send these certificates… box on the Outlook Tool > Opens > Security> Settings > Change Security Settings dialog. Also, turn on the Send clear text signed message on the Outlook Tool > Options > Security tab.
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The author then drags the signed e-mail from Outlook on to the desktop or into a folder.
A .msg file is created.
- Drag the .msg file onto the Digital Rights dialog in the protected file.