Hi Eric.
You can have Fail2ban check Your logs for bad entries that happens within a given period of time and then ban the IP address (Ip tables).
Let Fail2ban check on the LAN ip address that is submitting the email in the submit log and then take action when Your tresholds are triggered - maybe not ban the ip adress (LAN) - send an email to sysadmin or lift the ban after 10 min.
Regards, Finn Den 16-02-2014 21:03, Eric Shubert skrev:
I don't see how fail2ban would be of any help with this. Can you elaborate?
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