User Guide

Synchronizing Information and Setting Up E-mail Security 53
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
.
4.
Do one or both of the following:
•
To sign all your outgoing e-mail messages so that recipients can
be certain that the messages were sent by you and have not been
altered in any way, select
Sign messages
.
•
To encrypt all your outgoing e-mail messages so that the contents
of your messages are protected from being viewed by anyone
other then the intended recipients, select
Encrypt messages
.
5.
Click
Menu > Choose Certifi cate
to select a certifi cate for signing or
encrypting outgoing e-mail messages.
You
can select certifi cates to sign or encrypt e-mail messages
individually if you do not choose to sign or encrypt all outgoing
e-mails. For information about signing and encrypting individual
messages, see “Individually sign and encrypt a message” in Chapter 6.