How to set Exchange Online mailbox sizes and limits in the Office 365 environment

Not sure what release of Office 365 you're using? Go to the following Microsoft website:

(http://office.microsoft.com/redir/HA103982331.aspx)

INTRODUCTION

This article describes how to use Exchange Online PowerShell to set Exchange Online mailbox sizes and limits in the Microsoft Office 365 environment.

To set mailbox size limits for Exchange Online mailboxes, use one of the following methods.

Connect to Exchange Online by using remote PowerShell. For info about how to do this, go to the following Microsoft website:
Connect to Exchange Online Using Remote PowerShell
(http://technet.microsoft.com/en-us/library/jj984289(v=exchg.150).aspx)
Run the following PowerShell command to set the mailbox size for a single user:

Set-Mailbox <UserID> -ProhibitSendQuota <Value> -ProhibitSendReceiveQuota <Value> -IssueWarningQuota <Value>

Note In this command, the <User ID> placeholder represents a mailbox user's UPN, email address, or GUID, and the <Value> placeholder represents a number in megabytes (MB), kilobytes (KB), or gigabytes (GB). For example, to set a mailbox size to 20 GB, to set the send limit at 19 GB, and to issue a warning at 18 GB, run the following command:

Set-Mailbox [email protected] -ProhibitSendQuota 19GB-ProhibitSendReceiveQuota 20GB -IssueWarningQuota 18GB
Check that the current list of quotas is attached to the mailbox. To do this, run the following command:
```
Get-Mailbox <User ID> | Select *quota<User ID> | Select *quota
```

Connect to Exchange Online by using remote PowerShell. For info about how to do this, go to the following Microsoft website:
Connect to Exchange Online Using Remote PowerShell
(http://technet.microsoft.com/en-us/library/jj984289(v=exchg.150).aspx)
Run the following PowerShell command to set the mailbox size for all the users in an organization:
Get-Mailbox | Set-Mailbox -ProhibitSendQuota <Value> -ProhibitSendReceiveQuota <Value> -IssueWarningQuota <Value>
Additional filters can be applied to the Get-Mailbox cmdlet or to the Get-User cmdlet to control the users for whom the change is applied. The following is an example in which three cmdlets are used to filter the command to the sales department of an organization:
```
Get-User | where {$_.Department -eq "Sales"} | Get-Mailbox | Set-Mailbox -ProhibitSendQuota <Value> -ProhibitSendReceiveQuota <Value> -IssueWarningQuota <Value>
```

For more info about mailbox size limits in Exchange Online, see the Office 365 service description at the following Microsoft website:

(http://www.microsoft.com/downloads/en/details.aspx?FamilyID=6c6ecc6c-64f5-490a-bca3-8835c9a4a2ea)

Still need help? Go to the Office 365 Community

(http://community.office365.com/)

website.

Article ID: 2490230 - Last Review: May 16, 2013 - Revision: 24.0

o365 o365a o365e o365022013 after upgrade o365062011 pre-upgrade o365m KB2490230