To use MessageGuard, you must already have nsMail or nsMail Pro mailboxes on your account. To purchase MessageGuard:

1. Login to Your Account Manager
2. Click the "nsMail" tab on the left navigation.
3. Beneath the "Email Services" section, you will see your email packages purchased to date, as well as a row for MessageGuard.
4. Within the MessageGuard row, click "Purchase".
5. Checkout. You are now ready to begin using MessageGuard.