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Exchange Migration

We have a working Exchange 2003 Server and I am wanting to export the mailboxes off this server onto our new Exchange 2012 Server. There is approx. 35 Mailboxes. We can export them all individually but I thought I would ask the question of Experts Exchange to see if anyone knew an easier way to migrate from old Server to  new server.

The 2 Exchange Servers will not be on the same domain.

Any advice will be appreciated.
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NWCCSteve
Asked:
NWCCSteve
1 Solution
 
Cris HannaCommented:
as long as each current mailbox is under 2GB, you can use Exmerge to export all mail boxes.  Exmerge does not work on public folders
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NWCCSteveAuthor Commented:
We have a few Mailboxes bigger than 4gb, will this still work.
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Cris HannaCommented:
No you would have to archive enough mail to get the size below 2 GB
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NWCCSteveAuthor Commented:
Is there any easier  way to move all of these mailboxes.
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Cris HannaCommented:
Not with your Exchange servers being in different domains...or without buying third party software
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Lionel MMSmall Business IT ConsultantCommented:
This is a very good option--it will cost about $10 per mailbox so in your case $350 but if you decide to do it user by user and converting from or to PST files you will reduce the time you spend on this lots and lots of hours to just a few
https://www.migrationwiz.com/Public/Solution/Pricing.aspx
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SteveCommented:
importing into the new exchange is quite easy as it has a built in importing facility. it's getting the mail out of your old box that is the pain.

options:
Exmerge - a pain to setup but will work for smaller mailboxes. the bigger ones wont work as advised by CrisHanna_MVP
Individual export - may take time and needs a working Outlook to export from
3rd party tool - products like Ontrack Powercontrols can export mailboxes directly from the MailboxDatabase. It's not free but may be worth the time savings
Additional server - you could install exchange 2007-2010 using a trial license into your existing domain and migrate the mailboxes as part of the migration. you can then use the built in tools to export the mailboxes and import them into the new exchange box in the new domain.
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NWCCSteveAuthor Commented:
Thanks Totallonto

Your answer was clear and specific, and gave me some good options.

I think I will do the manual export as I need to visit every computer in the building and there will be 4 of us.
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