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94 Working With Company E-mail and Meeting Appointments
To individually sign and encrypt a new message
1. Tap Start > Messaging > Outlook E-mail.
2. Tap Menu > New to create a new message.
3. Tap Menu > Message Options.
4. From the Security list, select whether to encrypt only, sign the message only, or do both.
5. Tap OK.
To verify the digital signature on a signed message you receive
1. Open the Outlook e-mail message that has been digitally signed.
2. At the top of the message, tap View Signature Status.
3. Tap Menu > Check Certificate. To view the details of the certificate in the message, tap Menu > View
Certificate.
Note There can be several reasons why a digital signature is not 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have expired, it may have been revoked by the certificate authority, or the server that verifies the certificate is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.
To digitally sign and encrypt all messages
You can set up ActiveSync to digitally sign and encrypt all outgoing messages. You must obtain a valid
certificate to sign and encrypt e-mail messages successfully.
1. Tap Start > Programs > ActiveSync.
2. Tap Menu > Options.
3. Select the E-mail information type, and tap Settings. On the E-mail Sync Options screen, tap
Advanced.
4. Do one or both of the following:
• To sign all your outgoing e-mail messages so that recipients can be certain that the messages
were sent by you and have not been altered in any way, select the Sign all outgoing e-mail
messages check box.
• To encrypt all your outgoing e-mail messages so that the contents of your messages are protected
from being viewed by anyone other than the intended recipients, select the Encrypt all outgoing
e-mail messages check box.
5. Tap Choose Certificate to select a certicate for signing or encrypting outgoing e-mail messages.
You can select certicates to sign or encrypt e-mail messages individually if you do not choose to sign
or encrypt all outgoing e-mail. For information about signing and encrypting individual messages, see
“To individually sign and encrypt a new message.”