Published at LXer:

When most people install a free software mail transport agent (MTA) they plumb for Postfix, Exim, qmail or Sendmail. Whilst these are all fine, they can be a little over the top for some smaller systems or systems where all you need is some kind of local MTA functionality. In these cases many people will install their favourite MTA anyway — but there are more lightweight alternatives. Here I look at one of them: Smail. Before I go any further I should clarify — for those who don’t already know — that Smail is not a mail client. It won’t do what Thunderbird, Evolution, Kmail and Mutt do. It delivers email for those programs. It also does not provide POP3 or IMAP services. Like most MTAs it performs a single core task; it routes email from one place to another.

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