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Postfix VS Mailu

Compare Postfix VS Mailu and see what are their differences

Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.

Mailu is a simple yet full-featured mail server as a set of Docker images.
Postfix Landing Page
Postfix Landing Page
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Postfix details

SMTP Server MTA Email Delivery

Mailu details

Email Self-hosted Email SMTP Server

Postfix videos

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Mailu videos

From zero to full mail server in 20 minutes with Mailu Docker images!

Category Popularity

0-100% (relative to Postfix and Mailu)


These are some of the external sources and on-site user reviews we've used to compare Postfix and Mailu

Postfix Reviews

We have no reviews of Postfix yet.
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Mailu Reviews

20+ Options for hosting our own mail server
Mailu To be frank, this one I liked very much. It can be easy as to run 3 to 5 commands if you docker and docker-compose installed already. As you might have noticed, above link to mailu itself is pointing to the docs. Go get it. Github issues is a best place, if you are stuck at something Mailu Issues. From my personal experience and as per docs, atleast 2GB of RAM is...

Social recommendations and mentions

Based on our record, Mailu should be more popular than Postfix. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on Reddit, HackerNews and some other platforms. They can help you identify which product is more popular and what people think of it.

Postfix mentions (1)

  • OVH VPS Postfix can't receive external emails
    Read the documentation on and/or buy one of the many available Postfix books (it really helps to understand the Postfix philosophy). - Source: Reddit / 4 months ago

Mailu mentions (4)

  • Maddy: Composable all-in-one mail server
    I see no one has mentioned Mailu ( It’s a self hosted mail server made up of a couple docker images. I would recommend it based on my use and experience. I’ve been using it for my personal email and for automated no-reply messages in a few projects with no delivery issues. It handles spam with rspamd, sets you up with DMARC, DKIM, has an admin interface, web mail interface. - Source: Hacker News / about 2 months ago
  • personal email server with webmail on debian stable. Looking for latest up to date advice
    Mail servers and such can be very frustrating to configure and such, I would recommend taking a look at Mailu. It is a preconfigured mailstack (with some options and you could modify some of the configurations) built on top of docker. They have a decent installation guide (the whole setup process itself isn't complicated). - Source: Reddit / 3 months ago

What are some alternatives?

When comparing Postfix and Mailu, you can also consider the following products

Zimbra - Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

Mail-in-a-box - Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

Exim - Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

mailcow dockerized - An open source mailserver suite.

iRedMail - A fully fledged, free email server solution, an open source project (GPL v2). - Full featured email server built in docker with free plan.

User reviews

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