Friday, November 14, 2014

How to increase mailbox size in Exchange 2010

It is a common query of Exchange users about the size limit of their mailboxes. They want more space on server to store and keep their safe data from being vanished. To fulfill the requirement of Exchange users, Microsoft provides the facility to customize the storage setting to increase the size limit of Exchange mailbox. With follow few easy procedures Exchange admin can change the size of mailbox according to the user’s requirement.

So today, we will discuss the methods of increasing Exchange 2010 mailbox size limit. However there are two procedures to modify the size of mailbox in Exchange server such as by using Shell command, or by configuring storage quota in EAC (Exchange Admin Center). But before follow the below procedures, you need to assign the permissions. So first check the RecipientsPermissions, then follow the below steps. 

Increase mailbox storage quota in Exchange 2010

Firstly, we are using EAC to configure mailbox quota.

EAC (Exchange Admin Center) to configure storage quota of user mailbox:

1. Open Exchange Admin Center (EAC) and navigate to Recipients > Mailboxes.

2. A list of all the mailboxes will appear by click on Mailboxes, now you can select here the targeting mailbox that you want to change the storage quota. Select the user mailbox and click Edit to change the property of this mailbox.

3. Just click Mailbox Usage then click More Options on the property page of mailbox.

4. Now configure the following boxes by clicking on Customize the settings for this mailbox. Value can be set here from the range of 0 to 2047 GB (gigabytes).

o   Issue a warning at (GB)

This box shows the maximum storage limit of mailbox before delivered a warning message to the user. Exchange sends warning message to Exchange user once their mailbox reaches or become exceed more than value identified.

o   Prohibit send at (GB)

This box shows the forbid limit of the Exchange mailbox. Exchange sends and shows a new detailed error message to user if the limit of the mailbox has outdone to the set limit.

o   Prohibit send and receive at (GB)

This box shows the forbid send/receive limit of the mailbox. Exchange stops the mailbox from delivering or sending any new message once mailbox size limit cross the specified limit. All messages which sent to that user’s mailbox return to the sender with detailed error note.

5. Now just click Save and that’s it.

You can increase the size limit of Exchange 2010 mailbox by using EAC.

Now verify that the above configuration has been working or not. 

o   Go to EAC, navigate to Recipients > Mailboxes

o   Select the mailbox from the list to verify the storage quota, and click Edit.

o   Click Mailbox Usage then click More Options on the property page.

o   Now verify that Customize the settings for this mailbox has been selected. Just verify storage quota setting that you made.

However there is another method to customize the mailbox storage quota. Just use Shell commands to configure that.

Use Shell command to customize mailbox storage quota:

By running few lines of shell scripts you can easily customize the mailbox size in Exchange Server 2010.

Set-Mailbox -Identity "Davidson" -IssueWarningQuota 30.5gb -ProhibitSendQuota 35.75gb -ProhibitSendReceiveQuota 40gb -UseDatabaseQuotaDefaults $false

By running the above Shell command, you can set the issue warning, forbid send, and forbid send & receive quotas for Davidson's mailbox to 30.5 GB, 35.75 GB, and 40 GB individually.

Set-Mailbox -Identity "Charles" -IssueWarningQuota 800mb -ProhibitSendQuota 850mb -ProhibitSendReceiveQuota 1gb -UseDatabaseQuotaDefaults $false

By running the above Shell command, you can set the issue warning, forbid send, and forbid send & receive for Charles mailbox to 800 MB, 850 MB, and 1 GB separately, and configures the mailbox to use custom settings.

That’s it. Now run the below scripts in Shell to verify that required storage quota has been configured. Run the below command to check that.

Get-Mailbox<identity>fl IssueWarningQuota,ProhibitSendQuota,ProhibitSendReceiveQuota,UseDatabaseQuotaDefaults

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