Easy Ways to Increase Office 365 Mailbox Size

Is your Office 365 mailbox going to reach maximum storage? Do you need a stepwise guide on how to increase the size of the Office 365 mailbox? The Office 365 mailbox running out of storage is frustrating for the users. Moreover, it can restrict users from sending and receiving emails. Also, this issue can delay email and affect the organization’s overall productivity.

However, users no longer need to look for solutions, as this blog will share easy ways to increase the Microsoft Office 365 mailbox size. Let us start by understanding the default size limit of the Office 365 mailbox and how to check the Exchange Online or Office 365 mailbox size.

What is the maximum size of the Office 365 mailbox?

The size limit of the Office 365 mailbox depends on two factors: the type of license you are using to run Office 365 or Exchange Online and mailbox type.

Commonly, the maximum size limit for Office 365 mailbox is 50 GB, but it can fluctuate depending on the type of mailbox and license assigned to the user. Now, we will understand the default Office 365 mailbox size limit for different Office 365 subscriptions and mailboxes.

Maximum size limit of Office 365 mailbox:

The table below will help users understand the default Office 365 size limit. After you know the mailbox size limit, we will move on to how to increase the Office 365 mailbox size smoothly.

How do I check the Office 365 mailbox size limit?

Users can check the Office 365 mailbox size limit using the Outlook and Office 365 Admin Center. The detailed working guide on each solution is shared below.

1 With Outlook Online:

• Search for Outlook Online on your browser or click here.
• Then, enter your Microsoft 365 account details to log in.
• Select the Settings icon and click the View all Outlook settings option.
• Navigate to General and tap the Storage option.
• Here, you will be able to see the Office 365 or Exchange Online mailbox size.

These steps will help you keep updated with the Office 365 mailbox size using Outlook Online.

2 Exchange (Office 365) Admin Center (EAC):

• Go to the Exchange Admin Center and log in with your Microsoft account.
• Then, choose the Recipients tab and hit the Mailboxes option.
• After that, a list of all Office 365 mailboxes will appear; select the mailbox of which you want to check the size.
• Once you select the mailbox, its details and size will appear on the screen’s right side.

Using these two methods, users can quickly know the size of their Office 365 mailbox. Now, we will move on to understand in detail how to increase the Office 365 mailbox size.

Simple ways to increase Microsoft Office 365 mailbox size

Users can upgrade to Office 365 plans for increasing their Office 365 mailbox size. However, if users won’t look into upgrading their Microsoft 365 plan. Actually, we need to do online archiving to increase the size of Office 365.

Note: You can only increase Office 365 mailbox size in a few Office 365 or Exchange Online plans, like Office 365 E5, etc. So, upgrade your plan or keep the Office 365 email backup to avoid the issues of the large size of the Office 365 mailbox.

To do this, we are going to introduce some of the easiest ways to increase the Office 365 mailbox size effectively.

1 Increase Office 365 mailbox size using Power Shell commands

The Power Shell commands to increase Microsoft Office 365 mailbox size are listed below; follow them to expand the mailbox size.

• Install the Exchange Online Module if it still needs to be installed.

Install-Module -Name ExchangeOnlineManagement -Force -AllowClobber

Import-Module ExchangeOnlineManagement

• Then, follow the command below and connect to Exchange Online or Office 365.

Connect-ExchangeOnline -UserPrincipalName <your-admin-email> -ShowProgress $true

• Next, enable the online archiving for a user via the following cmdlet.

Enable-Mailbox -Identity “<user-email>” –Archive

• After that, use the command below to check mailbox size and quotas.

Get-MailboxStatistics -Identity “<user-email>” | Select-Object DisplayName, TotalItemSize

Get-Mailbox -Identity “<user-email>” | Select-Object DisplayName, ProhibitSendQuota, ProhibitSendReceiveQuota

• To increase Office 365 mailbox size, kindly follow the command:

Set-Mailbox -Identity “<user-email>” -ProhibitSendQuota 100GB -ProhibitSendReceiveQuota 110GB

• Once it is done, disconnect Exchange Online via the following PowerShell cmdlet.

Disconnect-ExchangeOnline -Confirm: $false

2 Upgrading Office 365 plan

Users can also upgrade their Office 365 plan if they need bigger mailbox storage. The following steps will help you increase the size of your Office 365 mailbox.

• Log in to the Admin Center with your Microsoft account.
• Then, head to Billings and click Your Products to see your current plan.
• Upgrade to the plans, like Exchange Online Plan 2, Microsoft 365 Enterprise E3 or Microsoft 365 Enterprise E5 if you want a larger mailbox size.
• Afterwards, go to Purchase Services, choose your plan and complete the purchase.
• In the Admin Center, move to the users and click the Active Users option.
• Choose the users and assign them the upgraded license.
• Then, use the above PowerShell commands or upcoming solution (EAC) to enable archiving for moving old emails to the archive mailbox.
• Finally, check if your mailbox size has increased after upgrading to the Office 365 plan.

3 Enable Online Archive using the EAC

Follow the instructions to increase the size of the Office 365 mailbox using the Exchange or Microsoft 365 Admin Center.

• Open the Exchange Admin Center and log in with the Microsoft 365 email address.
• After that, go to Recipients and click the Mailboxes option.
• Then, choose the user mailbox and tap the Enable button from the Archive section.
• After you successfully enable it, it will automatically archive old emails from the selected mailbox.

If you don’t have Office 365 enterprises or other plans, where you can archive the mailboxes to increase the Office 365 mailbox size. Then, the best task you can do is take Office 365 mailbox backup, and then you need to remove emails from the mailbox.

4 Shoviv Office 365 Backup and Restore Tool

Users can’t increase the size of Office 365 mailboxes until they don’t have Office 365-specific plans. The alternative solution to avoid large-size Office 365 mailbox issues is the Shoviv Office 365 Backup and Restore Tool. This solution allows users to back up their Office 365 mailboxes into multiple file formats, like PST, EML, MBOX, HTML, etc. So, once they have a backup, they can quickly delete emails from the mailbox to free up storage.

This software saves archive mailboxes, public folders and primary mailboxes from Office 365 to the local drive. Moreover, it provides a filter option as well that users can use to process only selected items from the mailbox when taking backup. This tool is easy to access: It doesn’t matter if you are a new or experienced user.

Easy guide for using the Shoviv Office 365 Backup Tool:

• Run our tool and connect Office 365.
• Then, select mailboxes and choose the target to save the resultant file.
• Filter items, switch settings per your requirements and hit the Next button.
• Choose file formats, like PST, EML, MBOX, etc, to save mailbox data.
• The Office 365 backup task will start here.
• Remove the emails from Office 365 after taking a backup.

So, what can you do to increase the size of the Office 365 mailbox?

Users who are looking to find out how to increase Office 365 mailbox size?  The simple answer is you can’t increase Office 365 mailbox size if you don’t have Office 365 E3 or E5 plans. Fortunately, you have another solution, the Shoviv Office 365 Backup and Restore Tool.

This solution will securely keep the Office 365 mailboxes in the local drive in the preferred file format. Users can prevent mailbox data from future mishaps by backing up the Office 365 mailbox and can also remove Office 365 mailbox large-size problems.

Users can try its free evaluation version to have hands-on experience with this Office 365 backup tool’s functionality. This demo version allows baking up the first 50 items from every folder of the Office 365 mailbox for free.

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Stuart

Stuart Clark is working as a technical content writer at Shoviv Software for the last 5 years. He specializes in crafting informative and engaging articles for diverse audiences. With a solid understanding of complex technologies, he explains complex concepts in a simpler manner that Leyman users can also understand easily. He has vast expertise in writing articles related to email migration and conversion niches. Apart from that, he likes to research newer technologies and gain knowledge to stay updated with the current trends.

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