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Working With Company E-mails 81
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 certificate for signing or encrypting outgoing e-mail messages.
Set permissions on an e-mail message
Another way of protecting your e-mail messages is to send messages with restricted permissions using
Information Rights Management (IRM).
Requirement This works only with a Microsoft Outlook e-mail account and if your company is using RMS Server
SP1.
1. Tap Start > Messaging > Outlook E-mail.
2. Create a message, then tap Menu > Message Options.
3. In Permissions, do one of the following:
• To allow anyone to read the message, select Unrestricted access.
• To prevent the message from being forwarded, printed, or copied, select Do not forward.
4. Tap OK.
Tip An IRM-protected message received on your device can only be replied to or forwarded if the message
permits it.