in many cases there is compromised system/email account and by disabling them we force them to take necessary steps to secure their environment. I know it's seems too crude but with this method we have managed to build very good rep 15+ mail servers.
This seems like a good idea and what we are looking for : "if they send more than 100 in 60 minutes, block them for 30 minutes or more. "
How and where can wee set up this spammer rule?
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