Start a new migration batch on the on-premises Exchange Server or in Office 365. The…
Sometimes you want to get a count of mailbox/mailboxes per database in Exchange. But, why do you need to get this information? For example, you want to distribute the mailboxes in the databases. Let’s find out how to get Exchange 2010/2013/2016/2019 mailbox count with PowerShell.
Do you want to get the size of each mailbox? Read the article Get mailbox size of all users in Exchange with PowerShell.
Mailbox count per database in Exchange with PowerShell
Find the total mailboxes of each database. We will use the Get-Mailbox cmdlet. Run Exchange Management Shell as administrator.
[PS] C:\>Get-Mailbox -ResultSize Unlimited | Group-Object -Property:Database | Select-Object Name, Count | Sort-Object Name | Format-Table Name Count ---- ----- DB01 235 DB02 249 DB03 292 DB04 437
It’s a great command if you want to know how many mailboxes are in each Exchange database.
Mailbox count of a specific database in Exchange
The previous command will count the mailboxes in all the databases. That’s great, but if you have a lot of databases, it will take time. That is when you can decide to show the count of a specific database.
[PS] C:\>Get-Mailbox -ResultSize Unlimited -Database "DB01" | Group-Object -Property:Database | Select-Object Name, Count | Format-Table Name Count ---- ----- DB01 235
It’s an excellent command if you want to know how many mailboxes are in a specific Exchange database.
In this article, you learned how to count mailboxes per database in Exchange with PowerShell. You can use the mailbox count commands in Exchange 2010/2013/2016/2019. The first command will list all the databases count in the organization. Run the second command if you only want to find the count of a specific database.
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