HTC P3600 Manuel D’Utilisation

160

10

Windows Mobile on your device protects your Outlook e-mails through 

Secure/Multipurpose Internet Mail Extension (S/MIME), which allows you to 

digitally sign and encrypt your messages.
Digitally signing a message applies your certificate with the authorization 

key to the message. This proves to the recipient that the message is from 

you and not from an imposter or a hacker, and that the message has not 

been altered.
Encryption protects the privacy of your message by converting it from 

plain, readable text into cipher (scrambled) text. Only the recipient who has 

the authorization key can decipher the message.

Requirement 

 S/MIME encryption and digital signatures for Windows Mobile-

based devices 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.

Note 

You can encrypt a message with or without a certificate. However, to read an 

encrypted message, you need a valid certificate to decrypt it.

Tap Start > Messaging > Outlook E-mail.

Tap Menu > New to create a new message.

Tap Menu > Message Options.

From the Security list, select whether to encrypt only, sign the 

message only, or do both.

Tap OK.

Open the Outlook e-mail message that has been digitally signed.

At the top of the message, tap View Signature Status.

Tap Menu > Check Certificate.

To view the details of the certificate in the message, tap Menu > View 

Certificate.

Ch10_English_Manual.indd   160

2007/5/28   下午 06:41:26