Sterna Mail is described as 'Private Android email app with JMAP, IMAP, and SMTP support, encrypted credentials, offline mode, OpenPGP, unified inbox, privacy defaults, and no tracking' and is a Email Client in the office & productivity category. There are more than 10 alternatives to Sterna Mail for a variety of platforms, including Android, Mac, Windows, Linux and F-Droid apps. The best Sterna Mail alternative is Thunderbird, which is both free and Open Source. Other great apps like Sterna Mail are K-9 Mail, Microsoft Outlook, FairEmail and BlueMail.
Cross-platform email client supporting multiple identities, chat, and strong filtering. Extend functionality with add-ons like RSS/Atom feed readers and PGP support.
United States
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.
Streamline emails, calendars, contacts, and task management with a smart inbox prioritizing critical messages. Includes calendar scheduling, third-party app integration like Facebook, Dropbox, and Trello, and support for Microsoft Exchange, Outlook.com, and Gmail, ensuring efficient task and email handling.
United States
Open-source, privacy-focused email client offering features such as encryption via OpenPGP and S/MIME, unlimited accounts, a unified inbox, customizable settings, and reformatted emails to prevent phishing. Supports two-way synchronization and provides Pro features for additional customization.
Netherlands
EU
BlueMail is a modern, mobile first, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP,Exchange,POP3.
United States
Japan
No-frills, easy to use, easy to maintain Email client for Android based on the JSON Meta Application Protocol (JMAP).
GermanyEU
Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 20 MB of RAM.
SpainEU
MailCode is a desktop mail client for people whose mailbox stopped being an inbox years ago and became an archive. It keeps every message on your own machine, indexes all of it, and answers a search.
Türkiye
Vireo is a clean, fast, GNOME-native email client with a calm three-pane layout, unified inbox, and support for OAuth accounts. Fast to open, effortless to read, and private by default.
United States
