You can see the first blogpost about it on the Microsoft Exchange team blog (aka You Had Me At EHLO) here. Quota Message Service for Exchange was first made publicly available a little over a year ago, more precisely Tuesday, April 20, 2004. The Quota Message Service for Exchange is a neat little program that was developed and still being updated by Jason Nelson, who’s a long time member of the Exchange development team at Microsoft (see his BIO here). You need to wait 2-3 hours or execute the Update-StoreMailboxState command.Being able to customize these types of warnings have always been a very common request among Exchange admin’s, but unfortunately too complex for most to accomplish as it involved editing MDBSZ.DLL with RLQUIKED which is included with the Resource Localization Toolset. In order not to get confused in quotas on the mailboxes specified manually, it is recommended to use several databases with different quotas and, if necessary, to increase the user mailbox, simply migrate it to another database with large quotas.Ĭhanging the quota per mailbox in Exchange 2016 is not immediately applied. For Outlook, the size of the mailbox is limited to the maximum size of the data file and is 50GB by default, but you can change this value if necessary (see the article).
Please note that in Exchange itself there are no technical restrictions on the size of the box. Mailbox quota settings can also be changed from EAC ( Recipients > Mailboxes > Properties > Mailbox usage > Customize the quota settings for this mailbox). To display the current quota settings for the mailbox, run: Get-Mailbox -Identity jsmith | fl IssueWarningQuota,ProhibitSendQuota,ProhibitSendReceiveQuota,UseDatabaseQuotaDafaults To change quota setting for the user jsmith use the following command: Set-Mailbox -Identity jsmith -IssueWarningQuota 15GB -ProhibitSendQuota 18GB -ProhibitSendReceiveQuota 20GB -UseDatabaseQuotaDafaults $false But the standard quota values are not suitable for everyone, so the Exchange administrator periodically has to change the quota settings for the individual users. To do this, go to the section Servers > Databases > select the required database > Properties > set the necessary quotas on the Limits tab.ĭatabase restrictions apply to all mailboxes that are in this database. You can also configure mailbox quotas from the Exchange admin center (EAC) web interface. To change database quotas, you can run the following command: Set-MailboxDatabase -Identity lonDB1 -IssueWarningQuota 1.8GB -ProhibitSendQuota 2GB -ProhibitSendReceiveQuota 2.3GB Messages sent to this mailbox will be returned to the sender with an appropriate error message (NDR).īy default, quotas for a new mailbox database are not set.
As you can see, the mailbox has three levels of size restrictions:
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