Why mailbox quotas

Is the Exchange out of the environment now? If so, lets confirm a few things. Open the command shell on Exchange server and run the following command against a mailbox you know isn't allowed to send. Replace user ID with the appropriate username. The last column that command shows is "ProhibitSendQuota". Make sure this reflects the size you have set. Now we will check to make sure that Exchange is applying the proper balances by running this command against the same user.

Next, lets make sure the mailbox is truly under the size by running the following command. That exports the sizes of all the mailboxes for a particular DB or all of them to a text file. Then, open Excel, click file open and navigate to the text file to open it in a comma deliminated form and you have a very nice laid out picture of everyone's mailboxes sorted by the largest first.

Open the management console and expand Recipient Configuration, then click on Disconnected mailbox. Is the user listed in there and if so, right click and choose connect. Consider a scenario in which a user departs the organization. It is common for departed user mailboxes to be left active, continuing to receive new email even when they have been removed from internal distribution lists.

Eventually, a large number of departed user mailboxes can accumulate, consuming enough disk space to cause a problem. In extreme cases, a single mailbox could consume all available space on a database volume. How do I manage my email quota? Short URL for sharing What happens when a m Get Help Request help from the Help Desk.

If you would like to provide more details, please log in and add a comment below. Thank you for your feedback. However, when assigned an E3 or E5 license, they can store up to GB of data. Once the archiving feature is enabled, an archive mailbox is assigned to each mailbox separately. To enable archiving for a shared mailbox, either of the mentioned license types needs to be assigned. Increase mailbox size in Microsoft There are two ways to increase the max mailbox size for a user: Assign an Exchange Online Plan 2 license to the mailbox.

This will increase the mailbox storage limit from 50 GB to GB. Enable Exchange Online Archiving. Depending on your Microsoft license, this will either give you additional 50 GB of space or nearly unlimited space with the auto-expanding archiving feature. Archiving in Microsoft Archive mailboxes are attached to other mailboxes. Read more about retention policies and litigation holds What is unlimited archiving?

Currently, the limits for an auto-expanding archive are as follows: 1. How to check mailbox size in Microsoft Now, of course, you can use the Exchange admin center to check mailbox usage of a certain person: But if you want to check mailbox size for all mailboxes including Shared mailboxes and resource mailboxes , it is far easier to use PowerShell: First, Connect to Exchange Online via PowerShell.

Enable archive mailboxes You can enable archive mailboxes using the Exchange admin center: Or via PowerShell.