Remote Server returned '550 5.7.705 Service unavailable. Access denied, tenant has exceeded threshol

Copper Contributor

Hi,

 

We received this error message. I believe the reason is the last item on the list below. Can you please fix it?

Screen Shot 2023-03-17 at 1.32.44 PM.png

2 Replies

@ayparentclimaterealit 

 

Following the error message, it seems Exchange Online Protection (EOP) filters identified a large volume of suspicious email coming on your tenant and has triggered a block on outgoing email action
Several different reasons may occur, please make sure your Exchange in terms of SPAM and report to Microsoft to unblock your tenant. 

 

Get support - Microsoft 365 admin | Microsoft Learn

 

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@ayparentclimaterealit 

 

I am following up with you to know if my previous response was helpful and 

If I have answered your question, please mark your post as Solved

If you like my response, please give it a Like :smile:

Appreciate your Kudos! Proud to contribute! :)