This website has information about the Postfix source code distribution. Built from source code, Postfix can run on UNIX-like systems including AIX, BSD, HP-UX, Linux, MacOS X, Solaris, and more.

Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail. It is released under the IBM Public License 1.0 which is a free software license.

Jan 27, 2026 · Postfix is a free, open‑source Mail Transfer Agent (MTA) for Unix‑like systems that routes and delivers email. It was designed as a Sendmail replacement with a strong focus on security, …

Postfix runs (or has run) on AIX, BSD, HP-UX, IRIX, LINUX, MacOS X, Solaris, Tru64 UNIX, and other UNIX systems. It requires ANSI C, a POSIX.1 library, and BSD sockets.

Jan 20, 2026 · Install and configure Postfix mail server on Ubuntu for SMTP email delivery, with dovecot SASL, without Virtual Domains or advanced configurations.

May 17, 2025 · In this guide, I'll walk you through setting up a basic mail server using Postfix on Linux, explaining each component in beginner-friendly terms. refer the git repo for further info …

Oct 24, 2019 · The most commonly used implementations of SMTP in most Linux distros are Sendmail and Postfix. Postfix is an open source mail-transfer agent that was originally developed as an …

May 23, 2022 · In this tutorial, you’ll install and configure Postfix as a send-only SMTP server. You’ll also request free TLS certificates from Let’s Encrypt for your domain and encrypt the outbound emails …

Dec 17, 2025 · Postfix is a free, open-source mail transfer agent (MTA) used to route and deliver email. The utility uses the Simple Mail Transfer Protocol (SMTP) to transfer emails between servers. The …

Jan 16, 2026 · Postfix is a widely-used, open-source mail transfer agent (MTA) that provides a reliable and secure way to send and receive emails on Linux servers. It is known for its flexibility, …