HTC Mogul User Manual download pdf (Page 102)

104 Section 8: Working With Company Email and Meeting Appointments

8.5 Email Security

Windows Mobile on your device protects your Outlook email through the 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 a recipient who has the authorization key can decipher the message.

Notes:

S/MIME encryption and digital signatures for Windows Mobile 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

versions, or have not yet synchronized, these options are unavailable.

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

need a valid certiﬁcate to decrypt it.

To individually sign and encrypt a new message:

1. Tap Start > Programs > 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 both.

5. Tap OK.

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, tap View Signature Status.

3. Tap Menu > Check Certiﬁcate. To view the details of the certiﬁcate in the message, tap Menu > View

Certiﬁcate.

Notes

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may have expired, it may have been revoked by the certiﬁcate authority, or the server that veriﬁes the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 may be unavailable. Contact the sender to report the problem.

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HTC Mogul User Manual Page 102