Requirements for S/MIME with Outlook Web Access
There are a few requirements which must be satisfied before you can send digitally signed or digitally encrypted email via the OWA.
- Your Secure Email Certificate must first be installed on the computer you are using the OWA from, or it should be published to the Global Address List (using Outlook 2003/2007/2010 via the MAPI Protocol)
- Windows 7 / Windows Vista users must run Internet Explorer as an Administrator (by right clicking on the icon and selecting "Run as Administrator), or disable the UAC.
- You must log into the Premium OWA over HTTPS (at https://ex.myhosting.com/owa) using Internet Explorer 7.0 or higher.
- You must install the Outlook Web Access S/MIME control from the Options under the E-Mail Security section of the OWA.