Exchange migration advice

Posted on 2006-06-06
Last Modified: 2012-05-05

I am after some advice, my company currently uses exchange 2000 running on ms sbs 2000 (company A).
We are just about to take over another company who also run the same setup (company B).  These new users will need to have email accounts on the exchange server of company A.
Company A's email server could really do with being upgraded, it hit its 16gb limit the other day and i had to take emergancy action to gain some breathing space.
I suppose the ideal solution would be to upgrade Company A's exchange server to sbs2003 and use the one in (company B) just for historical purposes for their old email.
If this is the right thing to do, how do i go about it bearing in mind that Company B is in a remote location?
Also, i need to get some kind of dedicated line between the two offices, whats the best way of going about that?
Also, sorry about this!, am i right in thinking that SBS2003 is limited to 75 users?

thanks andy
Question by:activateahsd
    LVL 104

    Expert Comment

    The SBS limit still applies - 75 users. You do get an increased limit on the Exchange store - of 75gb.

    If the second company is in a remote location, then you would probably do well to have an Exchange server in that office. All in the same domain etc. You haven't said how many users you have, but another option would be to spin Exchange out to its own box.
    I would also be looking at importing all the email in the acquired company's email system in to yours. That would allow you to do away with their old server. You could buy a copy of Windows 2003 and use it as a domain controller.


    Author Comment

    Sorry, I may have confused myself along with everyone else with my question so i am going to try and clarify it....

    Company B has been taken over by Company A, both companies run w2k server with Exchange 2K. Want is required is that in future, the users in Company B are set up with email accounts the same as Company A and all mail sent to the old email addresses of Company B gets forwarded on to the new mailboxes at Company A. As the two companies are in separate locations my concern is that if i simply add them as users on Company A's Exchange server wont their email network performance be seriously reduced as it will no longer be on the LAN?
    Also, these are two seperate domains so how will it work with users at Company B authenticating to Company A's domain to collect their email while still requiring access to Company B's data (on their own domain)
    As a side issue, we will probably have to upgrade the Exchange server at Company A to cope with the new users - not sure if that complicates or helps the situation!
    Any help would be gratefully received!
    Thanks Andy
    LVL 104

    Accepted Solution

    I would still put a second Exchange server in with the other users. You don't want all of their Exchange traffic going backwards and forwards over the WAN. Put an Exchange server and a separate domain controller in there and you will be fine.

    The problem comes with authentication. Because you have SBS, you cannot trust the other domain. Therefore the users will have to maintain two sets of usernames and passwords. Another option to consider would be to dump the domain belonging to the acquired company, and import everything in to the new domain.


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