creating directories securely.

[kimaili]

I would like to create a web interface for adding my users to the mail server. I'm using qmail with mysql for storing user accounts. I need a secure way of creating the Maildirs(using qmails maildirmake) and changing the ownership of these to a system account.
Does anyone out there have a solution? I would like to use php4...

[[deleted]]

Adding users 'should' be a root/mailadmin action, so I guess you should make a queue list of user that should be added,
and then use the cron to run a script under the root user to actually add the users.

I would definately not give PHP/your webserver permission to do it. Hackers are everywhere, and a good DOS might wreck your service completely.