The error message reads. Your Microsoft Exchange administrator has blocked the version of Outlook that you are using. Contact your administrator for assistance.

Question

The error message reads. Your Microsoft Exchange administrator has blocked the version of Outlook that you are using. Contact your administrator for assistance.

Anonymous

My Outlook 2010 will not send. It resides on my PC running Windows 10. It shows no connectivity to your server. It shows the last sync date of 06-22-2022. I can receive and send online and on my phone without a problem. The repair feature shows all is well. The error message reads...

"Your Microsoft Exchange administrator has blocked the version of Outlook that you are using. Contact your administrator for assistance.

Is my Microsoft Office version 2010 still good?

[![](https://learn-attachment.microsoft.com/api/attachments/b682ecd1-4ab7-40e2-b4d2-1da7fe924280?platform=QnA"https://learn-attachment.microsoft.com/api/attachments/18ff4d7f-5521-4aa0-aebb-b91b587dcb86?platform=QnA" rel="ugc nofollow">\ \[!\\\](https://learn-attachment.microsoft.com/api/attachments/64ba4830-dc11-402a-be97-4d4ac95726cb?platform=QnA"https://learn-attachment.microsoft.com/api/attachments/18ff4d7f-5521-4aa0-aebb-b91b587dcb86?platform=QnA" rel="ugc nofollow">https://learn-attachment.microsoft.com/api/attachments/18ff4d7f-5521-4aa0-aebb-b91b587dcb86?platform=QnA"https://learn-attachment.microsoft.com/api/attachments/b682ecd1-4ab7-40e2-b4d2-1da7fe924280?platform=QnA" rel="ugc nofollow">https://learn-attachment.microsoft.com/api/attachments/b682ecd1-4ab7-40e2-b4d2-1da7fe924280?platform=QnA

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Answer 1

Hello Rick

Outlook 2010 and older can no longer connect to Outlook.com and Microsoft 365 business accounts using Exchange services because they dont support modern authentication. You can use them to connect using POP or IMAP only, but calendar and contacts won't sync.

This is Microsoft's announcement -

https://prod.support.services.microsoft.com/off...

It looks like you only have one account - you could use eM client (it's free for one or two accounts). It will sync outlook.com calendar & contacts - and iCloud calendar and contacts.

-- Diane

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The error message reads. Your Microsoft Exchange administrator has blocked the version of Outlook that you are using. Contact your administrator for assistance.

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