Encrypting e-mail messages with Outlook?

Need some help guys. I've never configured this and have no experience with this so I need some guidance. I need to be able to provide my users with the ability to encrypt e-mail messages (both internal and external messages). Now I know how to set this up in Outlook, but what I need to know is what do I have to do as far as SSL certificates, Digital IDs, and Exchange Server 2003 configuration. Please provide guidance. Thanks.
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Craig BowmanConnect With a Mentor IT Services ManagerCommented:
mcpp661Author Commented:
No responses? This can't be that uncommon.
Craig BowmanIT Services ManagerCommented:
Encrypt a single message

In the message, on the Message tab, in the Options group on the ribbon, click the Encrypt Message Contents and Attachments button .
 NOTE   If you don't see this button, click the Options Dialog Box Launcher in the lower right corner of the group to open the Message Options dialog box. Click the Security Settings button and in the Security Properties dialog box, select Encrypt message contents and attachments. Click OK and then close the Message Options dialog box.

Compose your message and send it.

Encrypt all outgoing messages

Choosing to encrypt all outgoing messages means, in effect, your e-mail is encrypted by default. You can write and send messages the same as with any other e-mail messages, but all potential recipients must have your digital ID to decode your messages.

On the Tools menu, click Trust Center, and then click E-mail Security.
Under Encrypted e-mail, select the Encrypt contents and attachments for outgoing messages check box.
To change additional settings, such as choosing a specific certificate to use, click Settings.
Click OK twice.
 NOTE   3DES is the default encryption algorithm used in Outlook 2007.

Pulled from http://office.microsoft.com/en-us/outlook-help/encrypt-e-mail-messages-HP001230536.aspx
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