User MailBox with PostFix + Dovocate

How I can Control User MailBoxes Size On my Centos 5 mail server (PostFix , Dovocate )

 

Take a look at the mailbox_size_limit parameter: http://www.postfix.org/postconf.5.html

 

I see this before it this issue is for all mailBoxes , I want to set Quota Per User Or Group
mailbox_size_limit (default: 51200000)

The maximal size of any local(8) individual mailbox or maildir file, or zero (no limit). In fact, this limits the size of any file that is written to upon local delivery, including files written by external commands that are executed by the local(8) delivery agent.

This limit must not be smaller than the message size limit.

 

Are you using system users or virtual users for your mail boxes? If you're using system users, you can use the quota from your Linux system.

If you're using virtual users, you can specify quota in the MySQL database.

 

I use System users and know how to make system quota , so I can Change to Virtual Users But How to do ....

 

The Postfix category has a few tutorials about this topic: http://www.howtoforge.com/howtos/email/postfix