Hi. I followed http://www.howtoforge.com/virtual_postfix_mysql_quota_courier and successulyy created my mail server. I was wondering whether there was an option to monitor the usage of the server by each account and to log the number of times a user logs on to send a message, or the number of times a message is sent through my SMTP. And if so - is it possible to monitor the message size as well. Thanks.