K-9 Mail is described as 'K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more' and is a very popular Email Client in the office & productivity category. There are more than 25 alternatives to K-9 Mail for a variety of platforms, including Android, Windows, iPhone, Mac and iPad apps. The best K-9 Mail alternative is Thunderbird, which is both free and Open Source. Other great apps like K-9 Mail are Betterbird, Microsoft Outlook, Evolution and FairEmail.
ProfiMail is a powerful email client for mobile phones. It allows you to read your mail on the go, and send text with attachments directly from your phone. Send photos, recorded sound or simply text messages to friends, from anywhere.
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Slovakia
EU
Macro is the open source company OS - channels, email, docs, tasks, crm, and AI in one workspace - that's self-hostable and AGPLv3 licensed.
United States
OfficeMail Pro, an email client app using ActiveSync is not only a secure and safe email client but also an app reinforcing a various convenience aspect. It is a product that has been significantly improved and implemented plenty of features like the shared mailbox and calendars...
United States
Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.
TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.).
United States
EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and AOL. EmailTray intelligently ranks messages, prioritizes them into 4 Inboxes and alerts you only to the most important.
GermanyEU
A stable e-mail service is essential for both work and personal life. We already manage more than 700,000 e-mail addresses on our high-availability and secure hosting infrastructure with data located in Switzerland.
Experience seamless communication with Xylo AI email assistant, the ultimate tool powered by cutting-edge Generative AI and Social Psychology.
Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 20 MB of RAM.
SpainEU
An open-source email app for Android delivering privacy with a user-friendly minimalist design. It supports multiple accounts, a unified inbox, conversation view, and encryption. Offers two-way sync, offline storage, minimal data use, and battery efficiency. Export settings for easy setup.
Switzerland
