Can't resolve office365 high severity alert

IniobongNkanga-8038 241 Reputation points


Please i need your help on this issue.

One of my users received this email saying "High Severeity alert has been triggered".


Since on Thursday my user cannot send an email.


Here is the screenshot of the email.


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  1. JimmyYang-MSFT 48,556 Reputation points Microsoft Vendor

    Hi @IniobongNkanga-8038

    As we know, if a user exceeds one of the outbound sending limits as specified in the service limits or in outbound spam policies, the user is restricted from sending email, but they can still receive email. So we could try to modify outbound spam policies to prevent this user from blocking.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.