T-Mobile KII0160 User Manual - Encrypt and Sign Messages

130  Working with Company E-mails and Meeting Appointments

Encrypt and sign messages

To individually sign and encrypt a new message

1. 

Select Start > Messaging > Outlook E-mail.

2. 

Select Menu > New to create a new message.

3. 

Select Menu > Message Options.

4. 

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

message only, or do both.

5. 

Select Done.

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, select View signature status.

Note  You may need to download the rest of the message in order for you to 

see the name of the person who signed the e-mail. 

3. 

Select Menu > Check Certificate.

To view the details of the certificate in the message, select 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the sender’s certificate may have expired, it may have been revoked by the 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.