Open source or free alternatives to Socketmail/Hivemail?
Are there any open sorce or free alternatives to Socketmail/Hivemail? They doesn't have to be better than those but I do need to have a user signup function (plugin is OK) and preferably some kind of admin control panel.
I would get a Cpanel server and install roundcube there is a plugin that will setup mail accounts in Cpanel and then the users have Imap and Pop support along with Ajax webmail. (and if you dont want to offer pop or smtp, simply stop the services on the server)