I would like to have a daily report of the total number of email messages sent out through a Postfix installation (all users, all domains combined). What would be the easiest way to "increment a counter" every time a mail goes out?
I would mostly use the daily count as an alarm of possible abuse, i.e. to let me know if a user is pushing out, for example, thousands of messages per day which could be in violation of the data center's mass mail policy. Thanks, Ville
