I have a mail server which relays mail to the network. i have implemented a disk quota on each user which is:- 1 user can send mails upto a limit of 200 Mb,but this is creating a problem as some users are sending less mails and some of the users are sending more mails. So Now i want a user qouta to limit the number of emails sent by a single user to say=10000 emails per year.
I have postfix as an MTA and centOs 5 as my mail server configuration. can anybody help me in this issue.