Software Alternatives & Reviews

Sendmail VS Zimbra

Compare Sendmail VS Zimbra and see what are their differences

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

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.
Sendmail Landing Page
Sendmail Landing Page
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.

Sendmail details

SMTP Server MTA Office Suites

Zimbra details

Email SMTP Server Office Suites

Sendmail videos

breve configuracion de sendmail

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?

Category Popularity

0-100% (relative to Sendmail and Zimbra)


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

Sendmail Reviews

We have no reviews of Sendmail yet.
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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.

Social recommendations and mentions

Based on our record, Sendmail 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.

Sendmail mentions (1)

  • Sendmail and Exchange online - 550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup
    We are using sendmail and Exchange online with to different identies. We are experience problem that we want to receive Teams invitation to our @ address, when I forward teams invitation fromexchange online identite to "sendemail" identetie we are getting error. - Source: Reddit / 6 months ago

Zimbra mentions (0)

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

What are some alternatives?

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

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

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

sSMTP - sSMTP is a simple MTA to deliver mail from a computer to a mail server.

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

User reviews

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

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