Top Alternatives to Email.biz

Microsoft Outlook is a personal information manager from Microsoft.

ProtonMail is an end-to-end encrypted email service.

Apple Mail is an email client included with the operating systems macOS, iOS and watchOS by Apple Inc.

Tutanota is an open-source end-to-end encrypted email software and freemium hosted secure email service.

Evolution is the official personal information manager for GNOME.

Postbox is powerful, intuitive, ultra-customizable, speedy task manager.

Claws Mail is a free and open-source, GTK+-based email and news client. It offers easy configuration and an abundance of features.

Geary is an email application built around conversations, for the GNOME 3 desktop. It allows you to read, find and send email.

Zoho Mail is a email service with ample storage, POP and IMAP access, some integration with instant messaging and online office suites.

The Bat! is an email program for Windows that protects the correspondence and empowers the users to handle large amounts of emails quickly and efficiently.

Airmail is a fast mail client for Mac and iPhone.

Sylpheed is an open-source e-mail client and news client licensed under the GPL.

Mutt is a text-based email client for Unix-like systems.

FastMail is an email service offering paid email accounts for individuals and organizations.

Zimbra Desktop is an offline client that lets you manage various email accounts in one desktop tool.

OpenProject is a web-based project management system for location-independent team collaboration.

Kontact is a personal information manager and groupware software suite developed by KDE. It supports calendars, contacts, notes, to-do lists, news, and email.

Hushmail is an encrypted proprietary web-based email service offering PGP-encrypted e-mail and vanity domain service.

Mailvelope is a free software for end-to-end encryption of email traffic inside of a web browser (Firefox or Chromium) that integrates itself into existing webmail applications.

Posteo is an email service provider offering paid email accounts for individuals and businesses.

Mailfence is a web-based email service that offers OpenPGP based end-to-end encryption and digital signatures.

Polymail is an email application for OS X and iOS known for its clean interface and additional features atop the Gmail platform.

Microsoft Mail and Calendar apps help you stay up to date on your email, manage your schedule and stay in touch with people you care about the most.

WorkSpace collaborative suite for SMEs.

iRedMail is a free, OpenSource mail server.

Soverin is a secure mail hosting platform.