I have currently setup Postfix mail server for my company, but there is a bit of problem, the users I have defined for mail server MUST have shell access to server otherwise Postfix won't recognise it when he/she is trying to login which could not be true; I don't want my employees to have shell access to the server.
- How can I define a mail user without giving it a permission to access server's shell?
- Is there any web-GUI for this kind of stuff(manage mail servers users) that I am not aware of?
PS. I am currently using postfix 2.11.0 and ubuntu server 14.04LTS