migrate mail boxes from another exchange organization

Hi

we have our domain for example  ourdomain.com   and we have our exchange servers but we have different branches in different countries  

so we won different domains  like  (( ourdomain.fr - .nl - ch - etc )) but we have one exchange server for all these domains in our head office

now our company bought another company in other country for example Romania and that company they use different exchange  

so first we have to buy the ro domain ourdomain.ro    then we need to migrate these user mail boxes inside our central exchange server

so what the best advice can you give to me

i am thinking to do this steps

1- create new mailboxes for these user in our central exchange
2- export there emails as pst files
3- import there emails pst files
4- create email address policy for them after we won  ro  as an accepted domain


please i need the best way with some extra technical details



thanks
sword
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sword12Asked:
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Robin CMSenior Security and Infrastructure EngineerCommented:
There's a script called Prepare-MoveRequest.ps1 that you might find helpful. Note that it will not synchronise the AD password.
You might also want to check out ADMT (Active Directory Migration Tool), or if you have Forefront Identity Manager deployed you could use that.

See http://social.technet.microsoft.com/wiki/contents/articles/17854.moving-mailboxes-between-exchange-organizations.aspx
and http://blogs.technet.com/b/exchange/archive/2010/08/10/3410619.aspx

I'm guessing you know that you can export the entire mailbox (including email, calendar etc.) to a PST file? https://technet.microsoft.com/en-us/library/cc535123.aspx
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Guy LidbetterCommented:
Depending on the size of the migration, you could use a tool like Quest Migration.

However, if its not that many users, a manual migration is also very easy to do with just powershell.

How big is the new company?
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sword12Author Commented:
Hi all

the new company has only 25 users

plus they don't have there won exchange server they use out sourcing .

so what i am thinking about just do the following

1- create users and mail boxes for then in our AD and exchange
2- get the pst file for individual email
3- import the pst file for individual email to his or her new mail box

then they will have there old emails inside there new mail box

is this possible to do ? if yes  i will appreciate some more technical details


thanks
Sword
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Guy LidbetterCommented:
Yes, that is definitely the best plan then for only 25 users.

contact the Outsourcing Company, they will need to provide you with a full PST export for each of the users.

Create the new Mail enabled users, make sure their PST's are named accordingly to their Display Name (i.e.  "First Lastname.pst"). Put them all in one directory i.e. "C:\Temp\PST".

Then use this to import them.

$PSTPath = "C:\Temp\PST" 

$PSTs = Get-ChildItem -Path $PSTPath -File | where {$_.name -like "*.pst"} | select name. fullname
Foreach ($PST in $PSTs) {
	$DisplayName = $PST.name.split(".")[0]
	Write-host "Working on User" $DisplayName -foregroundcolor Green
	New-MailboxImportRequest -Mailbox $Displayname -FilePath $PST.Fullname -BatchName NewCompany
	}

Open in new window


What this does is get all the PST's in the folder, take the Displayname from the file name to match the mailbox and then creates a new mailbox import.

Note: The users accounts must be created, and the displayname must match the PST filename. Don't Use a "." in the display name....

regards

Guy
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sword12Author Commented:
WOW sound so good

i will do it in this way and i will update you and in case i need extra help i will ask you again

thanks
Sword
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Guy LidbetterCommented:
No problem Sword,

Just drop  me a line if you need any help.

Regards

Guy
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