Zimbra
Thunderbird
Roundcube
Google Workspace
Mailbird
Microsoft Outlook
iRedMail
Zoho Mail
SourceForge
GitHub
GitLab
BitBucket
openDesktop.org
Gitea
Launchpad.net
OSOR
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.
Zimbra
SourceForgeZimbra is recommended for businesses, educational institutions, and non-profit organizations that require a comprehensive email and collaboration platform. It's particularly suitable for those who need customization options and value open-source solutions. It can be an excellent fit for IT departments seeking to manage their own email infrastructure rather than relying on third-party service providers.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Roundcube - Web-based IMAP email client
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Google Workspace - Google's encompassing suite of cloud-based business apps.
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.