Hi. I just wondered if there is any built-in way to have courier mail server log Authentications (successful and unsuccessful) in a clean and simple way.
In esmtpd config, I can log the dialog, in authdaemonrc I can turn on debugging but that's clearly not an easy way to have authentications logged. Auth failures get logged as errorneous SMTP response but I did not find anything about successful logins. Any idea on that? I would like to build some heuristic detection about hacked accounts. Not really rate limiting but something "alert me when an account logged in a hundred times in a few minutes". Regards, Bernd
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