The other day I wanted to have a look at the mailbox usage for one of my Office clients. I wanted to see all 35 users and find out if anyone was close to their mailbox quotas.
I had to go to 5 or 6 different sites to find all of the little details and troubleshoot some errors so I thought I'd compile all of that info into a blog post for you. First of all, you need to use the regular version of PowerShell.
NOT the "Online Services Module" for PowerShell version that you would typically use for other Office tasks, I guess because we are talking directly to the Exchange environment here and not the Office portal itself.
Make sure you run PowerShell as an administrator.
Export Office 365 Mailbox Size Report Powershell
Right-click the icon and select "Run as Administrator" The first time I ever tried to run these type of scripts, I got an error about running remote signed scripts or something like that. So you need to run this command the very first time you try any operations like this: Set-ExecutionPolicy RemoteSigned Next are the 3 commands that you need to run to connect to your hosted Exchange server and start a new session: 1.
Do we know a way to SORT this list by mailbox size? I keep coming back to this every time I need to run this for a client. Should have more spiceups! Thanks for this write up. I'd just like to add a modification I needed for my Win10 Pro system.
Between steps 2 and 3, I had to also run:. Provide a valid certificate with which to sign the files. Does anyone know what admin role I'd need to assign to a service account before it's able to run the above commands?
At the moment, our reporting service can only see its own mailbox. Check mailbox size and usage with Office or Exchange online. Find users nearing their quota. Email Servers Microsoft Office Sep 16, 2 Minute Read. Reply Facebook Twitter Reddit LinkedIn. Manish Asodekar.
Track Progress. Earn Credits. Rusty Platter Sep 17, at am. Vince Dec 10, at pm. Bepster Mar 30, at am. Split " " . Split " " .On-premise Exchange Server mailboxes start from 2 GB in size by default, but can go up to unlimited. For all mailboxes, administrators can change the mailbox sizes per user or globally.
The mailbox storage limit for all Office or Exchange plans can be found on TechNet. Thus, there may be a need to check the usage size of Office and Exchange mailboxes. Especially now that the attachment size that one can attach to email can be as big as MB, the mailbox can fill up quickly.
This tutorial shows you how to check the mailbox usage of individual user, or all users at once from Exchange Admin Center GUI without using any PowerShell commands.
If you need to check the mailbox usage for many users at one go, the steps above which show mailbox usage size of one user is not practical. The following tutorial shows you how to generate the mailbox usage report, which provides information about users with a user mailbox and the level of activity by each based on the email send and read activity.
It is likely to work on other platforms as well. If you try it and find that it works on another platform, please add a note to the script discussion to let others know. Disclaimer The sample scripts are not supported under any Microsoft standard support program or service.
The sample scripts are provided AS IS without warranty of any kind. Microsoft further disclaims all implied warranties including, without limitation, any implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample scripts and documentation remains with you.
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Disclaimer The sample scripts are not supported under any Microsoft standard support program or service.Users can easily get access to their mailboxes on the go. But as the access window widens, due attention must be given to manage Office mailbox activities. Admins, over the years, have adapted to the evolving technology, and been able to find smart ways to handle novel tasks.
ManageEngine has developed this web-based reporting software that provides various parameters, generated in Office Mailbox Size Reports, to analyze mailbox size-related details. Besides sparing you the time and effort to query scripts on PowerShell or run native AD tools, Exchange Reporter Plus creates a synchronisation between your Active Directory and Windows Exchange server. This allows tracking of mailbox activities and displays the following reports in real-time.
This report returns the current list of all Office mailboxes in an Exchange organization, and their respective sizes and counts. Mailbox size is displayed for the current time, by default. The report also offers statistical data. It sorts the top 10 mailboxes by size and displays the same on a bar graph. Furthermore, each of the bars show mailbox-specific information, such as mailbox name and size. This report lists the names of all the Office mailboxes that have been archived locally.
It also displays metrics such as the size of the archive, quota assigned to the archive, and archive warning based on quota consumption. Office mailbox size reports help in efficient capacity planning and support administrative decisions, thereby ensuring smooth operation for the Exchange administrator. Office reports come in handy for users looking for general information about online mailboxes.
These reports bring mailbox size-related details to the surface and aid effective mailbox management, with fewer metrics to monitor. Office Mailbox Size.
Office Archive Mailboxes. Monitor the growth of your Exchange mailboxes with automated reports. Download a free trial now! Request demo. Exchange Reporter Plus trusted by.The Mailbox usage report provides information about users with a user mailbox and the level of activity by each based on the email send, read, create appointment, send meeting, accept meeting, decline meeting and cancel meeting activity. It also provides information about how much storage has been consumed by each user mailbox, and how many of them are approaching storage quotas.
You must be a global administrator, global reader or reports reader in Microsoft or an Exchange, SharePoint, Teams Service, Teams Communications, or Skype for Business administrator to see reports. You can get a view into your organization's Mailbox usage by looking at the MailboxStorage and Quota charts. You may also leave feedback directly on GitHub. Skip to main content. Exit focus mode. Note You must be a global administrator, global reader or reports reader in Microsoft or an Exchange, SharePoint, Teams Service, Teams Communications, or Skype for Business administrator to see reports.
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Submit feedback. There are no open issues. View on GitHub. The Mailbox usage report can be viewed for trends over the last 7 days, 30 days, 90 days, or days.
However, if you select a particular day in the report, the table will show data for up to 28 days from the current date not the date the report was generated. The data in each report usually covers up to the last 24 to 48 hours. The Mailbox chart shows you the total number of user mailbox in your organization, and the total number that are active on any given day of the reporting period. A user mailbox is considered active if it had an email send, read, create appointment, send meeting, accept meeting, decline meeting and cancel meeting activity.
The Storage chart shows you amount of storage used in your organization. Storage Chart doesn't include archive mailboxes. For more information about auto-expanding archiving, see Overview of unlimited archiving in Microsoft The Quota chart shows you the number of user mailboxes in each quota category.
There are four quota categories: Good - number of users whose storage used is below the issue warning quota. On the Mailbox chart, the Y axis is the count of user mailboxes. On the Storage chart, the Y axis is the amount of storage being used by user mailboxes in your organization.
Office 365 Mailbox Size Reports
On the Quota chart, the Y axis is the number of user mailboxes in each storage quota. The X axis on the Mailbox and Storage charts is the selected date range for this specific report. The X axis on the Quota charts is the quota category. You can filter charts you see by selecting an item in the legend. The table shows you a breakdown of mailbox usage at the per-user level. You can add additional columns to the table. User name is the email address of the user.
Display Name is the full name if the user. Deleted refers to the mailbox whose current state is deleted, but was active during some part of the reporting period of the report.How can i view the mailbox size of all my Office users on the portal not just one at a time? Some people have said use PowerShell and I remember doing that a long time ago. Not sure if Microsoft changed the way to connect to office from PowerShell.
If they did what do I need to install on my pc? I've never experienced users having to log into the portal. Once they log into the applications that have been installed, they're normally done.
Office installed applications do "phone home". As it is a subscription service, this is how they can terminate access when you stop your subscription. There is also password resets quarterly by default that force users to change their password and re-login from the apps.
Typically you do it once and it stays out of your way for a while, but yes, they'll have to login form time to time. Full of very useful admin and management tools for O mailboxes. It may feel out of date and behind the curve soon and the purists will decry using a gui when you could use PowerShell. However, as long as you know what and how PowerShell can do, using the gui is potentially easier. It will give you a full report on mailbox sizes if that's what you want.How to export Office 365 mailboxes to PST using eDiscovery
I have all those commands and they do not work. I know couple of years ago you needed to download and install a tool on your pc in order for PowerShell to be able to login and connect to office I was able to do this but my notebook died and I have a new one.
You can also just log into the admin portal and go to reports menu and then select usage and select Exchange mailbox usage, then at bottom of page just select "Load more" till all mailboxes show. You can then sort by storage usage and export to Excel etc.
I do this monthly and I just have a column in Excel that converts bytes into GB to make it easier to get high level usage. Hi Adam. That report only goes as far as days. I need to see the full size of the mailboxes. You would think Microsoft would have such a simple and common report to generate.
Thank you jitensh those worked. My tech gave me the wrong password. Also Biggar that tool is awesome thank you.
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