Designing Exchange Server Organisation for 3 offices

[gchaple]

I have been asked for an opinion on the following situation, and would welcome any comments.

Office A with 200 Users.
Office B with 30 Users and a 64k private leased line to Office A
Office C with 10 Users with long distance dial-on demand ISDN to Office A

They want to migrate from ccMail to Exchange Server using the existing WAN connections.
I know nothing more than that for now.

All three offices would be one Exchange 'Organisation'
Have one Exchange server at Office A, also used by Office B
Office C would have it's own Exchange Server using a scheduled RAS connector with the Office A Exchange Server.

I will need to find out how busy the 64k line is.
And a host of other questions as well.
But in general, a solution that could work?

TIA

 

[Zelandakh]

Office B users get approx 0.5k per person to access email. Suggest same org, each office is defined as its own site each with one server in.

Then you set up Office A as the bridge head server and the others to call into A to update / transfer.

 

[Adampm]

You'll also want to use the X.400 connector. Are you going to be using a lot of public folders information or just email?

 

[Zelandakh]

I find the X400 connector more trouble than it is worth - I always use IMCs now...