June 28, 2022
If your organization currently has subscriptions to Office 365 Enterprise E3 or E5, the default mailbox storage limit is supported 100GB. You can check it from the account information of outlook. Unfortunately, there are many people noticed the default size is still showing 50GB, today, I am going to show you how to increase it to 100GB.

If your organization currently has subscriptions to Office 365 Enterprise E3 or E5, the default mailbox storage limit is supported 100GB. You can check it from the account information of outlook.

Unfortunately, there are many people noticed the default size is still showing 50GB, today, I am going to show you how to increase it to 100GB.

1.Check the account information from outlook.

2.Open PowerShell and run following cmdlet to change execution policy.

Set-ExecutionPolicy RemoteSigned

3.On the Execution Policy Change pop up message, click Yes to All.

4.Run following to install Exchange online management module.

Import-Module ExchangeOnlineManagement

5.Run following cmdlet to connect your exchange online account.

Connect-ExchangeOnline -UserPrincipalName csun@carysun.com -ShowProgress $True

6.Run following cmdlet to install AzureAD module.

Install-Module -Name AzureAD

7.On the Yes All on the make sure to install the module from PSGallery.

8.Run following cmdlet to view the user mailbox existing Quota.

Get-Mailbox csun@carysun.com | Format-List IssueWarningQuota,ProhibitSendQuota,ProhibitSendReceiveQuota,UseDatabaseQuotaDefaults

9.Run following cmdlet to change the mailbox storage limits from 50GB to 100GB.

Set-Mailbox Identity csun@carysun.com -IssueWarningQuota 100GB -ProhibitSendQuota 100GB -ProhibitSendReceiveQuota 100GB -UseDatabaseQuotaDefaults $false -Verbose

10.Run following to cmdlet to review the user mailbox Quota.

Get-Mailbox csun@carysun.com | Format-List IssueWarningQuota,ProhibitSendQuota,ProhibitSendReceiveQuota,UseDatabaseQuotaDefaults

11. Check the account information from outlook.

Hope you enjoy this post.

Cary Sun

Twitter: @SifuSun

Web Site: carysun.com

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