Hello everyone!

I am looking for a way to set a limit on the number of messages sent per hour (or per minute) in Exchange 2016/2019. Analyzing the documentation below, I configured the Message rate limit per user, but it had no effect.

Ref: Message rate limits and throttling | Microsoft Learn

When sending a number of messages greater than the configured limit, we receive the message “4.4.2 Message submission rate for this client has exceeded the configured limit,” but all the messages are sent normally.

I would like to know if there is any way to limit the number of messages per account in order to prevent spam from being sent through our environment.

Any suggestions?

Tks!

​Hello everyone!I am looking for a way to set a limit on the number of messages sent per hour (or per minute) in Exchange 2016/2019. Analyzing the documentation below, I configured the Message rate limit per user, but it had no effect. Ref: Message rate limits and throttling | Microsoft Learn When sending a number of messages greater than the configured limit, we receive the message “4.4.2 Message submission rate for this client has exceeded the configured limit,” but all the messages are sent normally.I would like to know if there is any way to limit the number of messages per account in order to prevent spam from being sent through our environment.Any suggestions?Tks!  Read More

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