Email

Korbs8 appsUpdated Sep 10, 2025

Providers

Another alternative, if you're technical enough or may have a friend to help, is to setup your own email server and that would technically make you the email provider.

Tuta Mail
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Tuta is an all-in-one email, calendar and contacts app which protects your data with full end-to-end encryption and it requires zero personal information. Tuta is built with open source software so you can inspect every piece of code running on your devices so you can be sure...
Cost / License
Freemium
Open Source
Application typeApplication types
WebMail Provider
Email Client
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Flathub
F-Droid
OpenAPK
Thunderbird
Korbs’s note
End-to-end encrypted app for email, calendar, and contacts, requiring no personal data, with open source code and quantum-resistant security.
Disroot
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Disroot is a platform providing online services based on principles of freedom, privacy, federation and decentralization.
Cost / License
Free
Open Source
Application type
WebMail Provider
Platforms
Online
F-Droid

Clients

I would recommend that you use the email provider's official web client and mobile app. However, if you're wanting options to use 3rd-party clients or simply want more than what the provider has to offer, then here's a list of options below.

Do note, if you plan to use Tuta, you may not use 3rd-party clients with their service. Tuta does not support the protocols IMAP/POP3/SMTP as they mention "...we cannot guarantee end-to-end encryption of your data."

Read more about Tuta and 3rd-party email clients on their support page.

Thunderbird
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Cross-platform email client providing POP/IMAP support, robust filtering, multiple accounts, and chat. Extendable via add-ons with RSS/Atom, etc.
Cost / License
Free
Open Source
Application typeApplication types
Email Client
Calendar App
Platforms
Windows
Linux
Android
BSD
AppImageHub
Snapcraft
Obtainium
Flathub
PortableApps.com
F-Droid
OpenAPK
Homebrew
Chocolatey
Mac
+7
Betterbird
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Open-source client enhancing Thunderbird with more features and bug fixes. Offers security patches and multi-row descriptions like Outlook.
Cost / License
Free
Open Source
Application typeApplication types
Email Client
Calendar App
Platforms
Mac
Windows
Linux
Flathub
Chocolatey
+10
K-9 Mail
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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.
Cost / License
Free
Open Source
Application type
Email Client
Platforms
Android
Android Tablet
F-Droid
OpenAPK
Geary
Like
Geary is an email application built around conversations, for the GNOME 3 desktop.
Cost / License
Free
Open Source
Application type
Email Client
Platforms
Linux
BSD
Flathub
GNOME
Flatpak
Linux Mobile
KMail
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KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE. It supports calendars, contacts, notes, to-do lists, news, and email.
Cost / License
Free
Open Source
Application type
Email Client
Platforms
Linux
BSD
Mail by elementary (formerly Pantheon)
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Mail is designed to let you manage your email quickly and effortlessly. Its interface is based on conversations, so you can read an entire discussion without having to click from message to message.
Cost / License
Free
Open Source
Application type
Email Client
Platforms
Linux
elementary OS