New-MoveRequest: Cannot find recipient that has mailbox GUID

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I'm doing a cross forest migration including a move from Exchange 2007 to 2010. I did succesfully run Prepare-MoveRequest to create a new disabled mail enabled account in the target domain. Afterwards I did a ADMT move for that account to take SID history and password to the new domain. I did leave out all the MSEXCH fields.

Now the New-MoveRequest for that user fails with the message:

VERBOSE: [14:55:00.985 GMT] New-MoveRequest : Cannot find a recipient that has mailbox GUID '38c27423-bf00-4255-9122-f221f2b19e88'.
VERBOSE: [14:55:00.985 GMT] New-MoveRequest : Admin Audit Log: Entered Handler:OnComplete.
Cannot find a recipient that has mailbox GUID '38c27423-bf00-4255-9122-f221f2b19e88'.
+ CategoryInfo : NotSpecified: (0:Int32) [New-MoveRequest], RemotePermanentException
+ FullyQualifiedErrorId : 36C68430,Microsoft.Exchange.Management.RecipientTasks.NewMoveRequest

Do I need to exclude more fields using ADMT? Or what else do I miss?

Michel de Rooij

I assume you did ADMT first - excluding Exch attribs - and then ran Prepare-MoveRequest.ps1 to sync/update the account in the target domain with the proper exchange attributes?

What is the exact new-MoveRequest command you're using?

Michel de Rooij,
MCITP Ent.Msg 2007+2010| MCTS W2008, Ex2007+2010 Conf, OCS2007 Conf | MCSE+Msg2k3 | MCSE+Inet2k3 | Prince2 Fnd | ITIL
I blog on and tweet on


Hi Michel,

Initially I did use ADMT first (with only one account). But then I read that I needed to run the Prepare command first, so I deleted the account. I ran the following command in a .ps1 file:

$LocalCredentials = Get-Credential DomainTarget\administrator
$RemoteCredentials = Get-Credential DomainSource\administrator
"" | ./Prepare-MoveRequest.ps1 -RemoteForestDomainController -RemoteForestCredential $RemoteCredentials -LocalForestDomainController -LocalForestCredential $LocalCredentials

Afterwards I did use ADMT, but I left the user in the user OU where the Prepare command placed the user, not where I wanted it to be.

Last I tested the Move with the following command:

New-MoveRequest -Identity "" -Remotelegacy -TargetDatabase " Mailbox Database 1854922471" -RemoteCredential (Get-Credential domainsource\administrator) -TargetDeliveryDomain "" -RemoteGlobalCatalog "" -WhatIf

which left me with the error message I mentioned in my first post.


I also tried to create new user, create mailbox, send mail, transfer with ADMT, run invoke-moverequest. Same result, different GUID.

What is wrong? Now I cannot move a mailbox at all!

Michel de Rooij

That Prepare-MoveRequest.ps1 should copy the MsExchangeMailboxGUID, so it goes wrong at that stage. Now, the script can create users for you but you'd had to do the ADMT excercise anyway (SIdhistory) so I'd use ADMT first and let the script do only the mapping and adding the necessary attributes.

What's the output of the Prepare-MoveRequest.ps1 script?

One important note, when running these kinds of scripts in large(r) environments, be advised scripts might not work immediately because of replication, i.e. attributes set at one DC may not have been replicated to the DC which your script is talking to.

Michel de Rooij,
MCITP Ent.Msg 2007+2010| MCTS W2008, Ex2007+2010 Conf, OCS2007 Conf | MCSE+Msg2k3 | MCSE+Inet2k3 | Prince2 Fnd | ITIL
I blog on and tweet on


I ran ADMT for another user, including all msEXCH fields.

The Prepare script says:
Preparation for done.
1 mailbox(s) ready to move.

After this I end up with 2 users. The second one disabled and having the same name with numbers added. When I now run MoveRequest I get the error about the GUID.

When I take a look in EMC I also see 2 users. No difference with added numbers or so. But the Recipient Type Details differ: one is User Mailbox, the other Mail User. When I take a look at the properties of the user with the User Mailbox type, I get the message:

The properties on this object have invalid data. If you click OK, default values will be used instead and will be saved if you do not change them before hitting Apply or OK on the property page. If you click cancel, the object will be displayed read-only and corrupted values will be retained.

When I click Cancel and browse the grayed-out tabs, I get another error at the Calendar Settings tab: " The user does not have an Exchange mailbox. It was running the command 'Get-CalendarProcessing ....."

When I run ADMT excluding the Exchange fields, the Prepare script says the same. And again I end up with 2 users. First running the Prepare script and then ADMT leaves me with one user.

Gen Lin


Please follow these steps to move the mailbox:

1. On source server, create a mailbox user, test01.

2. On target server, run the following command to move the AD account:

Prepare-MoveRequest.Ps1 -Identity -RemoteForestDomainController -RemoteForestCredential $Remote -LocalForestDomainController -LocalForestCredential $Local -UseLocalObject -Verbose"

3. Run the ADMT to migrate the password and SID history.

4. Run the following command to move the mailbox:

New-MoveRequest -Identity " CN=test01,CN=Users,DC=target,DC=com" -TargetDatabase 'MSC-DB01' -remoteGlobalCatalog "" -remoteCredential $remote -TargetDeliveryDomain' -RemoteLegacy

Note: The identity should be the user object in the target domain.

What's result?



Hi Gen,

Do you want me to exclude the msExch fields in ADMT or leave all in?

Michel de Rooij

Don't or you'll have issues (eg you'll overwrite the legacyExchangeDN and proxyAddresses on the target account, where that x500 proxyAddress needs to identical to the source legacyExchangeDN value).

Michel de Rooij,
MCITP Ent.Msg 2007+2010| MCTS W2008, Ex2007+2010 Conf, OCS2007 Conf | MCSE+Msg2k3 | MCSE+Inet2k3 | Prince2 Fnd | ITIL
I blog on and tweet on
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