Forum Discussion
claireturner
Oct 26, 2022Copper Contributor
Remote Server returned '550 5.7.705 Access denied, tenant has exceeded threshold.
what does this mean? Why can't I send emails?
Kidd_Ip
Oct 27, 2022MVP
Base on the error message, it seems Exchange Online Protection (EOP) filters identify a very large volume of suspicious email coming from your tenant and triggers a block of outgoing email action
Several different reasons may occur, please make sure your Exchange in terms of SPAM and report to Microsoft to unlock