How to Digitally Sign an Individual E-mail Message in Outlook Web Access
This article explains how to sign e-mail messages using Outlook Web Access.
Before You Begin
Log on to Outlook Web Access with the S/MIME control installed as a user who has a certificate.
To digitally sign an individual e-mail message
Click New to compose a new message.
Add a recipient for the message and fill out the message fields.
On the toolbar, select the Add digital signature to this message button.
The Add digital signature to this message button