Exchange 5.5 connecting to Exchange 2000

[rubiconx]

If someone could give me some info or point me in the right direction on this it would be great. Here's my question.

Right now our company wide email system is set up so that each site gets external email via the corp office's Exchange 5.5 server. So an email comes in to the CO then gets routed to the appropriate site. Each site sends it's own email.

We have some new sites going in and we'd like to start them off on Exchange 2000 instead of 5.5 as we'll be going to 2000 in the near future.

Will the exchange 2000 servers be able to communicate with the 5.5 server? What needs to be done to ensure the communication happens?

Thanks in advance.

 

[zbnet]

Both Exchange 2000 and 2003 can co-exist with 5.5 servers, but only by lowering their full functionality to the 5.5 mode of operations.

There are lots of whitepapers etc on the MS website regarding migrating Exchange, but I'd say most now focus on moving towards Exchange 2003 (which, incidentally, you should consider - there will be significant benefits, not least because it will have a longer support lifetime than Exchange 2000).

 

[netometer]

Hi!
First you need perfectly functioning Active Directory in place.
If you have one domain in your forest you need to run forestprep and domainprep. If you have more than one domain you should run forestprep in the root domain (if there are not going to be mailbox enabled users in the root domain you don’t need to run domainprep in it) and domainprep in each domain where you are planning to have mailbox enabled users.
Then you have to plan carefully where to place your ADC(s) and what CA(s) you are going to need.
It seems that you are having many Exchange 5.5 sites so your migration plan is not going to be very simple.
I’ve deployed similar scenarios and I’ll be glad to discuss the questions that you have in the process of this migration.

Dean

Dean

http://www.netometer.net/help/helpdesk.html