Webmail

Zimbra

Zimbra is a provider of open-source email and collaboration software, offering solutions for email, calendar, contacts, and collaboration for both individual and enterprise use.

Google Workspace

Google Workspace, formerly G Suite, is a collection of cloud computing, productivity and collaboration tools.

Microsoft 365

Microsoft 365 is a line of subscription services offered by Microsoft as part of the Microsoft Office product line.

SquirrelMail

SquirrelMail is an open-source web-mail package that is based on PHP language. It provides a web-based-email client and a proxy server for IMAP protocol.

Sympa

Sympa is an open-source mailing list management (MLM) software.

RainLoop

RainLoop is a web-based email client.

RoundCube

RoundCube is free and open-source web-based IMAP email client.

Proton Mail

Proton Mail is the world’s largest secure email service with over 70 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.

Apple iCloud Mail

Apple iCloud Mail is a webmail service provided by Apple, Inc.

Open-Xchange App Suite

Open-Xchange is a web-based communication, collaboration and office productivity software suite.

Outlook Web App

Outlook on the web is an information manager web app. It includes a web-based email client, a calendar tool, a contact manager, and a task manager.

CrossBox

CrossBox is a webmail client.