Software Alternatives & Reviews

Calypso VS Zimbra

Compare Calypso VS Zimbra and see what are their differences

Calypso logo Calypso

Calypso is primarily a multi-user, multi-channel reservations system with a wide range of customer and technology driven features and functionalities.

Zimbra logo 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.
  • Calypso Landing page
    Landing page //
    2023-04-27
  • Zimbra Landing page
    Landing page //
    2023-05-06

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 www.zimbra.com to learn more and begin a free trial.

Calypso videos

I Reviewed Every Calypso Drink Flavour...

More videos:

  • Review - CALYPSO - REVUE 2006 part 1
  • Review - Ranking Every Flavor of Calypso Lemonade! - SNACKTIME

Zimbra videos

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

More videos:

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

Category Popularity

0-100% (relative to Calypso and Zimbra)
Email
4 4%
96% 96
Email Clients
10 10%
90% 90
SMTP Server
0 0%
100% 100
Network & Admin
100 100%
0% 0

User comments

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Reviews

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

Calypso Reviews

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Zimbra Reviews

Alternative to Zimbra - atmail versus Zimbra - email for telcos
If you’re tired of Zimbra email, talk to us instead. We have more than 20 years of global email expertise and power 170 million mailboxes worldwide. We can be trusted to keep your platform secure, stable, scalable and private. Our modern, white label, multitenant and monetisable solutions are available both on-premises and in the cloud. We also won’t make you go through a...
Source: www.atmail.com
Overview of 5 Best Microsoft Exchange Server Alternatives
If you are an enterprise-level company that is looking for a solution based on open-source technologies, then Zimbra might be what you are looking for. As per the team behind Zimbra, this collaboration platform encompasses multiple open source projects under one supported and certified open-source collaboration application tailored to satisfy the needs of enterprises.
Source: jatheon.com
15 Best iRedMail Alternatives 2021
Zimbra has a calendar feature like iRedMail with a simple web and mobile UI that lets you manage your calendars and address books. Similarly, it also supports POP, IMAP, CardDAV, and CalDAV protocols.
Top 10 Webmail Clients in 2021
Zimbra Zimbra also works in web browsers. But it isn’t like PHP web clients as it uses the AJAX set of web technologies instead. It offers email and calendar functionality and you can view messages and conversation formats. Its approach to visual search is particularly effective in making short work of managing the largest inboxes. Zimbra is one of the open-source webmail...
Source: www.plesk.com
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...
Source: opensource.com

What are some alternatives?

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

Baïkal - Cal and CardDAV server

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

SOGo - SOGo is groupware server with a focus on scalability and open standards.

Roundcube - Web-based IMAP email client

Xandikos - Lightweight CalDAV/CardDAV server on top of Git.

mailcow - An open source mailserver suite.