Bulletin ID	A2E_215
Last Review	10/4/2010
Revision	1.0
Previous IDs	None
Obsoletes	None

Exchange 2003 Migration Leaves Legacy Mailboxes

Summary

When migrating mailboxes from Exchange 2003 to 2007/2010, the process may leave the mailboxes as “Legacy Mailboxes”, which do not have full capabilities under 2007/2010. This prevents Add2Exchange permissions from working properly in the new environment.

This can be fixed with an Exchange Management Shell command. The process to convert a single mailbox generally takes less than a minute.

Symptom

Add2Exchange experiences logon failures to the mailboxes in question
The mailbox type in Exchange Management Console shows “Legacy Mailbox”

Description

See the following Microsoft KB article for details:

http://support.microsoft.com/kb/931747

Resolution

Apply the solution to a test mailbox before doing a full migration:

Select a test mailbox which:
- is part of Add2Exchange synchronization
- displays as a Legacy Mailbox in Exchange Management Console
- can afford some downtime (the best is an inactive user or a test account)
Run the following command and fill in “Old-Mailbox” with the user’s id:
```
Set-Mailbox -id Old-Mailbox -ApplyMandatoryProperties
```
Test that Add2Exchange now has access to the mailbox by running a sync or using the A2E Toolbox logon test.

Once you have verified the solution, run the following command to update all legacy mailboxes:


Get-Mailbox -filter { RecipientTypeDetails -eq “LegacyMailbox” } | Set-Mailbox -ApplyMandatoryProperties

Applies To

Exchange 2003
Add2Exchange Enterprise
Add2Exchange Standard