If you were to log in, you'd be able to get more information on your fellow community member.
I have extremely good experiences with qmail. It is simple, secure, fast, feature-rich and easily extensible. It follows a standard Unix way of designing software, with lots of small replaceable processes linked together with pipes.
I set up qmail with virtual domains, spam blocking and a mailing list manager (ezmlm, designed for qmail) for an ISP guy in England. Even though I had never used Solaris before (!), qmail was easily installed.
Where do I submit articles for the Web Tools Review? I would like to write an article about setting up qmail.
Actually, Nolo Press has a Real Estate Section now, so you can buy a house without a lawyer.