This Power Shell cmdlet will show all of the mailbox sizes and their quotas.  It will also let you know if the mailbox has exceeded it’s quota and disabled as a result.  It outputs the username, the total item size (sorted highest to lowest), and their storage limit status.
Get-MailboxStatistics -Server SERVERNAME | Sort-Object -Property TotalItemSize [...]

Continue reading " How to display mailbox size and quota in Exchange 2007 "

Use this cmdlets to list all users on old server and their old mailstore
Replace “OUNAME” with one of your Organization Units
Replace “SERVERNAME” with your exchange 2003 server
Get-Mailbox -OrganizationalUnit OUNAME -Server SERVERNAME | Format-List Alias, ServerLegacyDN

Continue reading " List All Mailboxes and Aliases on Old Exchange 2003 Server "

This script is perfect for moving a large amount of mailboxes from Exchange 2003 to Exchange 2007. To use this script, simply create a csv file and include “alias” as the first line in the csv file. Then include a list of users in that file. For example:
alias
user1alias
user2alias
user3alias
## Name: MoveMailboxes.ps1.
## Create a csv file with [...]

Continue reading " Move Mailboxes from Exchange 2003 to Exchange 2007 "