Polycom realpresence 1800 Administrator's Manual page 440

Exchange Integration Configuration - Option 2
Field
Primary SMTP Mailbox (Optional)
b Click OK.
Option 3 - Using modified Exchange Server settings
Polycom®, Inc.
Polycom Conferencing for Microsoft Outlook®
Description
Enter the name of the SMTP Mailbox in the Microsoft Exchange
Server to be monitored by the Collaboration Server.
Note: Although several mailboxes can be assigned to each user in
the Microsoft Exchange Server, only the Primary SMTP Mailbox is
monitored. The Primary SMTP Mailbox name does not have to
contain either the Collaboration Server's User Name or Domain
name.
409