Applies to: Exchange 2010
There is sometimes the need to permanently delete disconnected mailboxes. For example, if you moved mailboxes between databases, the previous database will still hold a copy of the moved mailboxes (by default for 30 days). If you’re tight on disk space, you might want to delete the disconnected mailboxes manually.
Note: Your Exchange database file size will not decrease right-aways, however, the Exchange Mailbox Server(s) will immediately have free space inside the .edb file for new emails.
Step 1: Retrieve List of Disconnected Mailboxes
Get-MailboxDatabase | Get-MailboxStatistics | where {$_.DisconnectReason -eq “SoftDeleted”} | Select DisplayName,ServerName,Database,ItemCount
Step 2a: Permanently Delete an Individual Disconnected Mailbox
Remove-StoreMailbox -Database (Database) -Identity (useralias) -MailboxState SoftDeleted
Step 2b: Permanently Delete all Disconnected Mailboxes across all Databases (enter below commands into a .ps1 file before executing)
$var1 = Get-MailboxDatabase | Get-MailboxStatistics | where {$_.DisconnectReason -eq “SoftDeleted”}
$var1 | foreach {Remove-StoreMailbox -Database $_.database -Identity $_.mailboxguid -MailboxState SoftDeleted}
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