HTC KAIS110, User Manual

Page: 164 / 232

164 Using Outlook with Exchange Server
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.
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the sender’s certificate may have expired, it may have been revoked by the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.