@murgero @alento I don’t know what you guys meant to express, but the last two replies come off as dismissive of the original poster’s question. Please don’t do that.
@fasterthangoogle There’s a script at management/mail_log.py that pulls the sort of statistics you’re looking for from mail.log. The output of the command is sent to the administrator’s account each week. But you could look at how the script works if you are looking for something a little different.