Help exchange 5.5 and 2000

[freak12]

Need help. The company I work for has purchased another company. They want the e-mail servers to be able to send e-mail and have all e-mail accounts from both systems in 1 global address list. This is the setup of both companies. One company is an NT 4.0 domain with exchange 5.5 enterprise, the other company a Windows 2000 domain with active directory, running exchange 2000 enterprise. The domains are not trusted and the exchange systems are configured as different organizations. Any suggestion appreciated.

 

[Zelandakh]

How many users / mailboxes in each org? What connection type / speed between two Exchange boxes?

 

[freak12]

I would say about 500 users/mailboxes in each organization and the 2 networks have been framed together with a 512 connection and they are looking at upgrading it to a full T1.