Email Security - HTC Snap User Manual

7.5 Email Security

Windows Mobile on your phone protects your Outlook emails through Secure/
Multipurpose Internet Mail Extension (S/MIME), which allows you to digitally sign
and encrypt your messages.
Requirement
Note You can encrypt a message with or without a certificate. However, to decrypt and
read an encrypted message, you need a valid certificate.
To individually sign and encrypt a new message
1. Click Start > Messaging > Outlook Email.
2. Click Menu > New to create a new message.
3. Click Menu > Message Options.
4. From the Security list, select whether to encrypt only, sign the message only,
or do both.
5. Click Done.
To verify the digital signature on a signed message you receive
1.
Open the Outlook email message that has been digitally signed.
2. At the top of the message, click View signature status.
3. Click Menu > Check Certificate.
To view the details of the certificate in the message, click Menu > View Certificate.
Note
There are several reasons why a digital signature may not be valid. For example, the
sender's certificate may have expired, it may have been revoked by the certificate
authority, or the server that verifies the certificate is unavailable. Contact the sender
to report the problem.
Working with Company Emails and Meeting Appointments 105
S/MIME encryption and digital signatures for Windows Mobile-based
phones are available only with Exchange Server 2003 SP2 or a later
version that supports S/MIME. If you are not using one of these products, or
have not yet synchronized, these options are unavailable.