HTC S310 User Manual - Page 49
Setting Up E-mail Security, Digitally sign and encrypt all messages - certificate
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Synchronizing Information and Setting Up E-mail Security 49 3.6 Setting Up E-mail Security Windows Mobile on your phone protects your Outlook e-mails through Secure/Multipurpose Internet Mail Extension (S/MIME), which allows you to digitally sign your messages as well as encrypt them. Using authorization keys and certificates, S/MIME allows you to digitally sign your e-mail messages to prove your identity to the recipients. Authorization keys are also used when encrypting messages to improve privacy and prevent undue tampering or hacking of your messages. You can encrypt a message with or without a certificate. However, to read an encrypted message, you need a valid certificate for decrypting e-mail messages. Note S/MIME encryption and digital signatures for Windows Mobile-based devices are available only with Exchange Server 2003 Service Pack 2 or a later version that supports S/MIME. If you aren't using one of these products, or have not yet synchronized, these options are unavailable. Digitally sign and encrypt all messages ActiveSync allows you to set up S/MIME e-mail encryption and signing. You will have to obtain a valid certificate for signing or encrypting e-mail before you will be able to sign or encrypt mail successfully. 1. On the Home screen, click Start > ActiveSync. 2. Click Menu > Options. 3. Select the E-mail information type, and click Settings. On the E-mail Sync screen, click Menu > Advanced.