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Archive for June, 2023

How to get rid of error ‘The email address is already being used. Please choose another email address’

Today, I had mistakenly created a user account instead of shared mailbox so I wanted to delete and recreate it as a shared mailbox but kept getting error ‘The email address is already being used. Please choose another email address.’

After some research I found that if we want to use the same email address as an alias of our primary account, we have to wait for 30 days prior to the date when deleted. But we have an alternate workaround for same, we can hard delete the email address using below command.

Remove-Mailbox -Identity <Identity> -Permanent $true

So, I opened PowerShell from top right navigation as shown below

If you are running it for the 1st time, it will create a new database to log the powershell command and its output. as shown below

If you don’t have at least contribute access on subscription, you will get error ‘{“error”:{“code”:”AuthorizationFailed”,”message”:”The client ‘UserID’ with object id ‘xxx’ does not have authorization to perform action ‘Microsoft.Resources/subscriptions/resourcegroups/read’ over scope ‘/subscriptions/subscriptionnumber/resourcegroups/cloud-shell-storage-eastus’ or the scope is invalid. If access was recently granted, please refresh your credentials.”}}

Note : Microsoft is updating few policies so few command including this one may not work for all tenants so use the alternate method mentioned below


You can even run PowerShell from your local machine as shown below:

Now you can use below command and remove the mailbox, now you should be able to create the Shared mailbox without any error.

Remove-Mailbox -Identity <Identity> -PermanentDelete $true

Article from:
Inderjeet Singh Jaggi

Published a user\shared mailbox calendar and add it to SharePoint page or even with someone outside the organization

1. Make sure you have send-as permission on the mailbox from Admin center. 
2. Sign-in to Outlook web app (https://outlook.office365.com/owa) with your Office 365 account or open mailbox.
3. If its shared mailbox click on your name on top right corner of the screen and then select Open other users mailbox, type shared mailbox details. 
4. Navigate to the calendar and right-click the calendar you want to share. Select Share > Publish this calendar > Share this calendar as shown below:

5. Now select Can view all details or any other option and select Publish

Now open the SharePoint page and add a script editor app. Add below code to the app. I have hidden the GUID in above screenshot.

<iframe src=”https://outlook.office365.com/owa/calendar/SOMEGUID/calendar.html” height=”400px” width=”400px”></iframe>

Article from:
Inderjeet Singh Jaggi