Software Alternatives & Reviews

Zimbra VS Postfix

Compare Zimbra VS Postfix and see what are their differences

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.

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

Zimbra is the trusted email and collaboration platform and productivity suite that includes contacts, calendar, tasks, chat and file sharing, plus videoconferencing, document editing, and file storage. Built on an open source core, it features a modern interface, pre-integrations with popular third-party apps like Zoom, Slack and Dropbox, and can be deployed in the cloud or in on-prem and hybrid environments. Enterprises, governments, financial institutions, service providers and remote teams around the world rely on Zimbra to support complex privacy, data sovereignty and security requirements. Today, Zimbra powers hundreds of millions of mailboxes on desktop and mobile devices in more than 140 countries, and is offered by more than 500 BSPs and 2,000 channel partners. Also available now for small and medium-sized business is Zimbra Cloud, starting at $2.95 per month for 30 GB of storage. Visit to learn more and begin a free trial.

Postfix Landing Page
Postfix Landing Page

Zimbra details

Email Email Client SMTP Server

Postfix details

SMTP Server MTA Email Delivery

Zimbra videos

Modern Collaboration: Discover why Zimbra is the open source leader in Email and Collaboration

More videos:

  • - Zimbra #01 introduction of Open Source Email Collaboration Solution
  • - Zimbra Review: Why The University of Pennsylvania Likes Zimbra Email?

Postfix videos

No Postfix videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Zimbra and Postfix)


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

Zimbra Reviews

5 open source webmail clients for browser-based email
Zimbra is a well-maintained project that has been hosted at a number of different corporate entities through the years, and was acquired by Synacore in 2016. It features most of the things you've come to expect in a modern webmail client, from webmail to folders to contact lists to a number of pluggable extensions, and generally works very well. I have to admit that I'm most...
Best Open Source Collaboration & Groupware Software Solutions
Zimbra Collaboration Suite (ZCS) is a collaborative software suite that includes an email server, a web client, calendar, chat, and many other tools. It is a groupware application that has gained a lot of popularity due to the features it provides in an OpenSource way. There are two versions, a Community Edition (Opensource and a Network Edition (Enterprise). The community...
5 Awesome Open Source Groupware Software Suite
Zimbra Collaboration Suite (ZCS) is free and open source collaborative software suite, that includes an email server and web client. Feature includes email, calendar, collaboration server with web interface and lots of integration. Zimbra also provides native two-way sync to many mobile devices such as BlackBerry, Windows Mobile, iPhone, Android and more.

Postfix Reviews

We have no reviews of Postfix yet.
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Social recommendations and mentions

Based on our record, Postfix seems to be more popular. It has been mentiond 1 time 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.

Zimbra mentions (0)

We have not tracked any mentions of Zimbra yet. Tracking of Zimbra recommendations started around Mar 2021.

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 / 8 months ago

What are some alternatives?

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

iRedMail - A fully fledged, free email server solution, an open source project (GPL v2).

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

Roundcube - Web-based IMAP email client

Microsoft Exchange Server - Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.

Sendmail - Sendmail is a general purpose internetwork email routing facility that supports many kinds of...

Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

User reviews

Share your experience with using Zimbra and Postfix. For example, how are they different and which one is better?

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