I am running Exim as an MTA. I have also implemented a Per hour Per domain email Limit. Still I see that my IP reputation goes bad if a spammer sends more than x amount of emails in 24 hours or so.
I want to setup a notification email so that if a compromised email account or a php script uses exim and sends spam and damages my IP reputation.
This may be an script or CSF which reads exim logs and check how many emails have been sent from a domain and send a notification if sent emails reach X number.