I know many have asked it but it is so hard to find a free mail server that supports imap besides hmail. I love hmail but you don't have all the options like mail enable. They do offer imap but you have to pay for it. I don't know but mail enable light only supports it, it should be just as hard a imap. I am developing a plugin but no luck so far. But I am not good at all this. The roundcube team is. They made a great webmail system. Thats fast, stable, and works great.