UebiMiau Alternatives

Mailspring is a mail client for Mac, Windows and Linux.

Open Source

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.

freemium

Web-based IMAP email client

Open Source

Shift is the ultimate email client for managing Mail, Calendar, Drive, Slack, Asana, Jira, Evernote, and all your other favourite apps

freemium

Mailbird is the best email client for Windows 7, 8 and 10

The Power Email App for busy professionals, like you.

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Gaggle Mail is a simple and easy to use email list manager.

SmarterMail is a next generation email management server that is offering several business collaboration and communication features as well.

Airmail is a lightweight and lightning fast mail client for Mac.

Native email app for email productivity.

Webmail is an open-source webmail script for existing IMAP servers.