I've inherited a server with some pages running. The person who worked on it has gone and there is no way to contact him. Recently I had some problems with the qmail service on this server (created a big number of files) without any obvious cause. In a metting somebody recommended to disable qmail if nobody was using it. I checked qmail and nobody was using it, so I'm thinking in disable it definitively.
But before doing this, I would like to ask you because this is a production system and I wouldn't like to broke anything. This server is used only as HTTP server (there are 20 websites), no mail, no FTP, no user shells, nothing. Some websites sends email (contact forms, sign up...) but I have disabled qmail some minuts and force a couple of websites to send and email and it worked.. So, the question is: is qmail needed for something I'm not seeing?