Linux Journal: Using Postfix for Secure SMTP GatewaysSep 16, 2000, 22:04 (1 Talkback[s])
(Other stories by Mick Bauer, Brenno De Winter)
"E-mail is easily the most popular and important Internet service today, which has made it a popular target of cyber-criminals and spam-happy miscreants. Adding to the problem is the inescapable reality that configuring sendmail, the most commonly used Mail Transfer Agent (MTA), is complicated, nonintuitive and easy to get wrong."
"Wietse Venema, intrepid developer of TCP wrappers and co-creator of SATAN, has come through for us again: his program, postfix, provides an alternative to sendmail that is simpler in design, more modular, easier to configure and less work to administer. Equally important, it's been designed with scalability, reliability and sound security as fundamental requirements."
"This article is intended to bring you up to speed quickly on how to use postfix on your network as a secure means of receiving e-mail from and delivering it to Internet hosts. In particular we'll focus on deploying postfix on firewalls, in DMZs and in other settings in which it will be exposed to contact with untrusted systems."
"Is sendmail really that bad? That depends on what you need it to do--the learning curve may not be justified if your e-mail architecture is simple. But sendmail is unquestionably an extremely powerful, stable and widely deployed application that isn't going away anytime soon, nor should it. In fact, The Paranoid Penguin will probably feature a sendmail article some time in the next few months."
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