Making the "Maildir" folders for user accounts

There isn't many famous ways to store email messages for a mail server .. I have chosen Maildir (I think it is the most common one), there is also mbox but still I prefer the Maildir format.

Setting up a Maildir directory for one user is a simple process, It starts with :

$ maildirmake /home/omar/Maildir

and if this is done by a user other than omar (usually this is done by the root user)

$ chown omar:users /home/omar/Maildir

of course adding the group (:users) is optional.