Using Postfix for Secure SMTP Gateways
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.
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