When you install an MS Mail (PC) gateway access component on the Connector postoffice, Microsoft Exchange Server clients can access a foreign system through an existing MS Mail (PC) gateway postoffice. If you have existing postoffices configured with gateway access components pointing to a gateway postoffice, this is an alternative to installing an MS Mail (PC) gateway on the Connector postoffice.
For more information on the MS Mail (PC) gateway access component on a Connector postoffice, see Microsoft Exchange Server Concepts and Planning.
When you install an MS Mail (PC) gateway access component on the Connector postoffice, you may need to use the MS Mail Administrator program to perform configuration tasks. A copy of the MS Mail Administrator program is installed along with the Microsoft Mail Connector. The administrator program functions the same way for the Connector postoffice as for an ordinary MS Mail (PC) postoffice. However, there are no mailboxes or mail groups on the Connector postoffice.
You install an MS Mail (PC) gateway access component on the Microsoft Exchange Connector postoffice the same as if you were installing it on an MS Mail (PC) postoffice. When the gateway access component is installed, a message from a Microsoft Exchange client intended for a foreign system is passed to the Connector postoffice. The Connector MTA moves the message from the Connector postoffice to the MS Mail (PC) gateway postoffice where it is queued for the foreign system. The MS Mail (PC) gateway process then moves the message to the foreign system.