Microsoft Outlook Alternatives

Arguably the most popular email service in the world, Gmail provides a email inbox for over 1.5 billion users. With Gmail you can create an email account for free that manages emails and contacts in the same application. Gmail is web-base but provides clients for mobile devices and supports third-party programs that synchronize email content through POP or IMAP protocols.

K-9 Mail is an open source email client focused on making it easy to chew through large volumes of email. K-9 Mail is designed for both novice and power users and offers lots of features for everyone. It provides features like Push IMAP Support, GPG & PGP/MIME support, Per Account Notifications, Unified Inbox, White and Dark Theme, and Signatures.

Vivaldi Mail is free email service and email client that includes multi-account support, mailing lists, filters, flags, keyboard shortcuts, and labels. Vivaldi Mail is built by the people behind the Vivaldi web browser and is provided as advertisement free mail client.

Yandex.Mail is an online email provider by the Russian internet giant Yandex. With Yandex.Mail you get secure protection from viruses and spam, mail sorting, highlighting of email from real people, free 10 GB of cloud storage on Yandex.Disk, beautiful themes.

Yahoo Mail is an online email service provider that is used by over 225 million users. With Yahoo Mail you can send and recive emails and have an organized inbox thanks to an intuetive interface that allow to categorize and move your communications based on type. Yahoo Mail can be customized and themed according your liking, and got built in support for media such as images, files and GIFs.

Mailbird is a desktop email client with an easy to use and intuetive interface. With Mailbird you can save time managing multiple accounts with the best email client for Windows and macOS.

Mailpile is an effort to reclaim private communication on the Internet. A project to rescue our personal lives from the proprietary cloud and prevent our conversations from being strip-mined for corporate profit and government surveillance. With Mailpile you can take e-mail back and make it yours.

World's largest secure email service providing end-to-end encrypted email accounts. ProtonMail is based in Geneva, Switzerland and protected by Swiss privacy laws. The software is openly developed with fully open source code.

A free an open-source email client developed openly by the Mozilla Foundation and the community. Thunderbird is easy to setup and customize and supports POP and IMAP. The email client comes with all features needed to search, filter, write and manage emails, but also have builtin support for live chat between contact and RSS/Atom feed reader.