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A free and open-source mail transfer agent
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What is Postfix?

It is a free and open-source mail transfer agent that routes and delivers electronic mail. It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Now at Google, Wietse continues to support it.
Postfix is a tool in the Transactional Email category of a tech stack.

Who uses Postfix?

31 companies reportedly use Postfix in their tech stacks, including Tokopedia, Avito, and Craigslist.

41 developers on StackShare have stated that they use Postfix.

Postfix Integrations

Postfix Alternatives & Comparisons

What are some alternatives to Postfix?
It is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind. It is an excellent choice for both small and large installations. It's fast, simple to set up, requires no special administration and it uses very little memory.
It is a fully self developed solution, truly innovative in several respects, particularly scalable and configurable. This messaging solution offers the entire range of mail services — SMTP, POP3, IMAP, WebMail (Desktop and Mobile versions) — includes List server, Logging, Reporting, and FTP Backup modules and provides various, flexible administration options (including a central Web administration interface — WebAdmin).
Twilio SendGrid
Twilio SendGrid's cloud-based email infrastructure relieves businesses of the cost and complexity of maintaining custom email systems. Twilio SendGrid provides reliable delivery, scalability & real-time analytics along with flexible API's.
Amazon SES
Amazon SES eliminates the complexity and expense of building an in-house email solution or licensing, installing, and operating a third-party email service. The service integrates with other AWS services, making it easy to send emails from applications being hosted on services such as Amazon EC2.
Mailgun is a set of powerful APIs that allow you to send, receive, track and store email effortlessly.
See all alternatives

Postfix's Followers
43 developers follow Postfix to keep up with related blogs and decisions.
Eric Balès
Mateus Cunha
Anna Moody
Arnold Ispan
Khi da
Bartosz Ka
Monte Roden
Jean-François VIAL