Prepare Mailboxes for Cross-Forest Move Requests

Exchange 2010 supports remote mailbox moves via the New-MoveRequest cmdlet. This topic describes the prerequisites for moving a mailbox from one Exchange forest to another Exchange 2010 forest.

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Exchange 2010 doesn’t support moving an Exchange 2000 mailbox.

In order to run the New-MoveRequest cmdlet to move a mailbox from an Exchange 2003, Exchange 2007 and Exchange 2010 forest to another Exchange 2010 forest, the Exchange 2010 target forest must contain a valid mail enabled user with a specified set of Active Directory attributes.

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If there is at least one Exchange 2010 Client Access server deployed in the forest, the forest is considered an Exchange 2010 forest.

For more information about remote mailbox moves and remote legacy moves, see Descripción de solicitudes de movimiento.

You can create the mail-enabled user with the required attributes in the target forest via a variety of Active Directory tools.

If you have deployed Identity Lifecycle Manager for cross-forest GAL synchronization, the recommended approach is to do this via ILM 2007 FP1 SP1. See KB 977791 (ILM 2007 FP1 SP1) to download the feature pack. We have created sample code that you can use to learn how to customize ILM to synchronize the source mailbox user and target mail user.

If you created the target mail user using an Active Directory tool other than ILM/MIIS, then you need to call the Update-Recipient <identity> cmdlet to run the Address List service to generate the LegacyExchangeDN for the target mail user. We have created a sample Powershell script that reads from and writes to Active Directory and calls the Update-Recipient cmdlet.

After creating the target mail user, you can then run New-MoveRequest to move the mailbox to the target Exchange 2010 forest.

For more information on remote move requests, see the following topics:

  What Do You Want To Do?

  • Learn about the list of Active Directory user attributes required for a mailbox move request
  • Use a Powershell script to configure Active Directory attributes
  • Use ILM sample code to configure Active Directory attributes

  List of Active Directory user attributes required for a mailbox move

In order to support online move mailbox, the mail user object in the target Exchange 2010 forest must have the following Active Directory attributes.

  Mandatory Attributes

The table below lists the minimum set of attributes that need to be configured in ILM on the target mail user for New-MoveRequest to function correctly.

Mail User’s attributes and required values

Mail User’s Active Directory attribute
Required value

displayName

Copy the corresponding attribute of the source mailbox or generate a new value

Mail

Directly copy the corresponding attribute of the source mailbox

mailNickname

Copy the corresponding attribute of the source mailbox or generate a new value.

msExchArchiveGUID and msExchArchiveName

Directly copy the corresponding attribute of the source mailbox. Attributes are only available if the source mailbox is E2010.

msExchMailboxGUID

Directly copy the corresponding attribute of the source mailbox.

msExchRecipientDisplayType

-2147483642 (decimal) //equivalent to 0x80000006 (hex)

msExchRecipientTypeDetails

128 (decimal) /0x80 (hex)

msExchUserCulture

Directly copy the corresponding attribute of the source mailbox.

msExchVersion

44220983382016 (decimal)

cn

Copy the corresponding attribute of the source mailbox or generate a new value.

proxyAddresses

Copy source mailbox’s proxyAddresses attribute. Additionally, copy source mailbox’s LegacyExchangeDN as an X500 address in the proxyAddresses attribute of the target mail user.

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The proxyAddresses of the source mailbox user must contain a SMTP address that matches the authoritative domain of the target forest. This will allow New-MoveRequest to properly select the targetAddress of the source mail enabled user (converted from the source mailbox user after mailbox move request is complete) to ensure that mail routing is still functional.

sAMAccountName

Copy the corresponding attribute of the source mailbox or generate a new value.

Need to ensure that it is unique within the target forest domain that the target mail user belongs to.

targetAddress

Set to a SMTP address in the proxyAddresses attribute of the source mailbox.

This SMTP address must belong to the authoritative domain of the source forest.

userAccountControl

Constant: 514 //equivalent to 0x202, ACCOUNTDISABLE | NORMAL_ACCOUNT.

userPrincipalName

Copy the corresponding attribute of the source mailbox or generate a new value. Since the mail user is logon disabled, this userPrincipalName is not used.

  Optional Attributes

Configuring the following attributes are not mandatory for New-MoveRequest to function correctly, but synchronizing them provide a better end-to-end user experience after moving the mailbox. Since the GAL in the target forest will display this target mail user, you should set the following GAL related attributes.

GAL properties

Mail User’s Active Directory attributes
Description

c

Directly copy the corresponding attribute of the source mailbox

co

Directly copy the corresponding attribute of the source mailbox

countryCode

Directly copy the corresponding attribute of the source mailbox

company

Directly copy the corresponding attribute of the source mailbox

department

Directly copy the corresponding attribute of the source mailbox

facsimileTelephoneNumber

Directly copy the corresponding attribute of the source mailbox

givenName

Directly copy the corresponding attribute of the source mailbox

homePhone

Directly copy the corresponding attribute of the source mailbox

info

Directly copy the corresponding attribute of the source mailbox

initials

Directly copy the corresponding attribute of the source mailbox

l

Directly copy the corresponding attribute of the source mailbox

mobile

Directly copy the corresponding attribute of the source mailbox

msExchAssistantName

Directly copy the corresponding attribute of the source mailbox

msExchHideFromAddressLists

Directly copy the corresponding attribute of the source mailbox

otherHomePhone

Directly copy the corresponding attribute of the source mailbox

otherTelephone

Directly copy the corresponding attribute of the source mailbox

pager

Directly copy the corresponding attribute of the source mailbox

physicalDeliveryOfficeName

Directly copy the corresponding attribute of the source mailbox

postalCode

Directly copy the corresponding attribute of the source mailbox

sn

Directly copy the corresponding attribute of the source mailbox

st

Directly copy the corresponding attribute of the source mailbox

streetAddress

Directly copy the corresponding attribute of the source mailbox

telephoneAssistant

Directly copy the corresponding attribute of the source mailbox

telephoneNumber

Directly copy the corresponding attribute of the source mailbox

title

Directly copy the corresponding attribute of the source mailbox

  Linked Attributes

A linked attribute is an Active Directory attribute that references other Active Directory objects in the local forest. You can’t directly copy the linked attribute values from a mailbox in the source forest to a mail user in the target forest. You must find the Active Directory objects in the source forest that the source mailbox attribute refers to. You must find the corresponding Active Directory objects in the target forest for the above-mentioned Active Directory object in the source forest. And then, set the target mail user’s attribute to refer to the Active Directory objects in the target forest.

Linked attributes

Mail User’s Active Directory attributes
Description

altRecipient (and it’s backlinks)

Correspond to the source mailbox’s altRecipient attribute.

deliverAndRedirect

Directly copy the corresponding attribute of the source mailbox. This attribute is a boolean value that should be set along with altRecipient.

Manager (and it’s backlinks)

Correspond to the source mailbox’s manager attribute.

MemberOf (backlinks)

This is the back link of group member attribute.

publicDelegates (and it’s backlinks)

Correspond to the source mailbox’s publicDelegates attribute.

  Linked Mailbox

If you want to move a mailbox to an Exchange 2010 resource forest, the mailbox in the resource forest is a linked mailbox. In this scenario, you will need to create a linked mail user in the (target) resource forest. To create a linked mail user, you need to set the following attributes.

Linked mailbox attributes

Mail User’s Active Directory attributes
Description

msExchMasterAccountHistory

Directly copy the corresponding attribute of the source mailbox.

msExchMasterAccountSid

If the source mailbox has msExchMasterAccountSid, then copy it. Otherwise, copy the source mailbox’s objectSid.

msExchRecipientDisplayType

Constant:-1073741818 (decimal) //equivalent to *unsigned* 0xC0000006.

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A linked mailbox can only be created if there is forest trust between the source forest and target forest.

If the source object is disabled and the msExchMasterAccountSid is set to self (resource mailbox, shared mailbox) do not stamp anything on the target user. RecipientDisplayType should be set to non ACL-able (second bit).

If the source object is disabled and the msExchMasterAccountSid is not set this is an invalid mailbox.

If the source object is enabled and the msExchMasterAccountSid is set, this is an invalid mailbox.

  Resource Mailbox

If you want to move a resource mailbox to an E2010 forest, you will need to set the following attributes in the table on the target mail user.

Resource mailbox attributes

Mail User’s Active Directory attributes
Description

msExchRecipientDisplayType

If source mailbox is a conference room:

Constant: -2147481850 (decimal) //equivalent to *unsigned* 0x80000706. If source mailbox is an equipment mailbox:

Constant: -2147481594 (decimal) //equivalent to *unsigned* 0x80000806.

msExchResourceCapacity

Directly copy the corresponding attribute of the source mailbox.

msExchResourceDisplay

Directly copy the corresponding attribute of the source mailbox.

msExchResourceMetaData

Directly copy the corresponding attribute of the source mailbox.

msExchResourceSearchProperties

Directly copy the corresponding attribute of the source mailbox.

  Additional Attributes

The Exchange 2007 Move-Mailbox cmdlet also copied the following attributes when moving a mailbox. You can optionally copy these attribute if needed:

Resource mailbox attributes

Mail User’s Active Directory attributes
Description

comment

Directly copy the corresponding attribute of the source mailbox.

deletedItemFlags

Directly copy the corresponding attribute of the source mailbox.

delivContLength

Directly copy the corresponding attribute of the source mailbox.

departmentNumber

Directly copy the corresponding attribute of the source mailbox.

description

Directly copy the corresponding attribute of the source mailbox.

division

Directly copy the corresponding attribute of the source mailbox.

employeeID

Directly copy the corresponding attribute of the source mailbox.

employeeNumber

Directly copy the corresponding attribute of the source mailbox.

employeeType

Directly copy the corresponding attribute of the source mailbox.

extensionAttribute1-15

Directly copy the corresponding attribute of the source mailbox.

homePostalAddress

Directly copy the corresponding attribute of the source mailbox.

internationalISDNNumber

Directly copy the corresponding attribute of the source mailbox.

ipPhone

Directly copy the corresponding attribute of the source mailbox.

language

Directly copy the corresponding attribute of the source mailbox.

lmPwdHistory

Directly copy the corresponding attribute of the source mailbox.

localeID

Directly copy the corresponding attribute of the source mailbox.

mAPIRecipient

Directly copy the corresponding attribute of the source mailbox.

middleName

Directly copy the corresponding attribute of the source mailbox.

msDS-PhoneticCompanyName

Directly copy the corresponding attribute of the source mailbox.

msDS-PhoneticDepartment

Directly copy the corresponding attribute of the source mailbox.

msDS-PhoneticDisplayName

Directly copy the corresponding attribute of the source mailbox.

msDS-PhoneticFirstName

Directly copy the corresponding attribute of the source mailbox.

msDS-PhoneticLastName

Directly copy the corresponding attribute of the source mailbox.

msExchBlockedSendersHash

Directly copy the corresponding attribute of the source mailbox.

msExchELCExpirySuspensionEnd

Directly copy the corresponding attribute of the source mailbox.

msExchELCExpirySuspensionStart

Directly copy the corresponding attribute of the source mailbox.

msExchELCMailboxFlags

Directly copy the corresponding attribute of the source mailbox.

msExchExternalOOFOptions

Directly copy the corresponding attribute of the source mailbox.

msExchMessageHygieneFlags

Directly copy the corresponding attribute of the source mailbox.

msExchMessageHygieneSCLDeleteThreshold

Directly copy the corresponding attribute of the source mailbox.

msExchMessageHygieneSCLJunkThreshold

Directly copy the corresponding attribute of the source mailbox.

msExchMessageHygieneSCLQuarantineThreshold

Directly copy the corresponding attribute of the source mailbox.

msExchMessageHygieneSCLRejectThreshold

Directly copy the corresponding attribute of the source mailbox.

msExchMDBRulesQuota

Directly copy the corresponding attribute of the source mailbox.

msExchPoliciesExcluded

Directly copy the corresponding attribute of the source mailbox.

msExchSafeRecipientsHash

Directly copy the corresponding attribute of the source mailbox.

msExchSafeSendersHash

Directly copy the corresponding attribute of the source mailbox.

msExchUMSpokenName

Directly copy the corresponding attribute of the source mailbox.

otherFacsimileTelephoneNumber

Directly copy the corresponding attribute of the source mailbox.

otherIpPhone

Directly copy the corresponding attribute of the source mailbox.

otherMobile

Directly copy the corresponding attribute of the source mailbox.

otherPager

Directly copy the corresponding attribute of the source mailbox.

preferredDeliveryMethod

Directly copy the corresponding attribute of the source mailbox.

personalPager

Directly copy the corresponding attribute of the source mailbox.

personalTitle

Directly copy the corresponding attribute of the source mailbox.

photo

Directly copy the corresponding attribute of the source mailbox.

pOPCharacterSet

Directly copy the corresponding attribute of the source mailbox.

pOPContentFormat

Directly copy the corresponding attribute of the source mailbox.

postalAddress

Directly copy the corresponding attribute of the source mailbox.

postOfficeBox

Directly copy the corresponding attribute of the source mailbox.

primaryInternationalISDNNumber

Directly copy the corresponding attribute of the source mailbox.

primaryTelexNumber

Directly copy the corresponding attribute of the source mailbox.

showInAdvancedViewOnly

Directly copy the corresponding attribute of the source mailbox.

street

Directly copy the corresponding attribute of the source mailbox.

terminalServer

Directly copy the corresponding attribute of the source mailbox.

textEncodedORAddress

Directly copy the corresponding attribute of the source mailbox.

thumbnailLogo

Directly copy the corresponding attribute of the source mailbox.

thumbnailPhoto

Directly copy the corresponding attribute of the source mailbox.

url

Directly copy the corresponding attribute of the source mailbox.

userCert

Directly copy the corresponding attribute of the source mailbox.

userCertificate

Directly copy the corresponding attribute of the source mailbox.

userSMIMECertificate

Directly copy the corresponding attribute of the source mailbox.

wWWHomePage

Directly copy the corresponding attribute of the source mailbox.

  Use a Sample Script Example to Configure Active Directory Attributes

You can download the sample remote Powershell script from the Prepare for Online M ailbox Move download page. For more information on using the sample script, see Prepare Mailboxes for Cross-Forest Moves Using the PrepareMoveRequest.ps1 script in the Shell.

  Use ILM Sample Code to Configure Active Directory Attributes

One prescriptive way to set the above mentioned Active Directory attributes is using ILM 2007 FP1 SP1. See KB 97 7 791 (ILM 2007 FP1 SP1) to download the feature pack.

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ILM 2007 has been updated. You must select whether the local forest is Exchange 2007 or Exchange 2010.

For Exchange 2010, you need to provide the Remote Powershell connection URI. Enter the URI of an Exchange 2010 Client Access server to make sure the Remote Powershell connection is functioning. The Exchange 2010 RPS URI should be in the following format: http://CAS_Server_FQDN/Powershell.

Provision GalSync Management Agent for Exchange 2010

Aprovisionamiento de Exchange 2010 del agente de administración

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