iMail Alternatives
iMail is described as 'Fast, safe, heavy mail solution. Web-client access, LAN or WAN self-hosted server, maintenance-free design. No Windows server and database server required, unlimited mail accounts, storage, attachment size, custom logo. Free for commercial use' and is a Mail Server in the Online Services category. There are more than 25 alternatives to iMail for a variety of platforms, including Linux, Online / Web-based, Windows, Mac and Self-Hosted solutions. Most alternatives are Mail Servers and WebMail Providers. The best alternative is Google Workspace. It's not free, so if you're looking for a free alternative, you could try mailcow: dockerized or Zimbra Collaboration Suite. Other great apps like iMail are Zentyal (Paid, Open Source), SOGo (Freemium, Open Source), Kolab Community (Freemium, Open Source) and Kopano (Freemium, Open Source).
- Google Workspace (formerly Google Apps for Work / G Suite) is Google's encompassing selection of cloud apps for business, including customizable products under custom domain names.
- mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration.
- Free • Open Source
- Linux
- Self-Hosted
- Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
- Freemium • Open Source
- Linux
- Online
- Self-Hosted
- Zentyal is a native Microsoft Active Directory implementation on Linux incorporating all the network services required in a small and medium business environment: Directory & Domain Server, Mail Server, Gateway and Infrastructure Server.
- Paid • Open Source
- Linux
- SOGo is groupware server with a focus on scalability and open standards.
- Freemium • Open Source
- Linux
- Online
- Thunderbird
- Cloudron
- Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.
- Freemium • Open Source
- Linux
- Online
- Self-Hosted
No screenshots yet - Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.
- Freemium • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- Windows Phone
- iPad
- Self-Hosted
- Microsoft Office Outlook
- S/MIME
- Software as a Service (SaaS)
- hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.
- Free • Open Source
- Windows
- Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
- Paid • Open Source
- Online
- Software as a Service (SaaS)
- DAVdroid
- A fully fledged, free email server solution, an open source project (GPL v2).