Alternatives to Alpine for all platforms with any license

Evolution

Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list...

Free Open Source Linux BSD S/MIME GNOME OpenPGP
CalDAV Calendar integration Built-in RSS reader CardDAV ... Encrypted email Integrated Spam Protection Multiple languages POP3 Support Add a feature

163 Like
eM Client

eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and chat.
- eM Client is not a command line email client. Guest • Mar 2017
Freemium Mac Windows
Calendar integration Automatic Backup Built-in themes Built-in translation ... CalDAV CardDAV Cloud sync Combined Inbox Sync Contacts Email preview Encrypted email Apps that Sync with Google Calendar Support for IMAP Imports email from Live mail Night mode/Dark Theme POP3 Support Calendar Sync Threaded Conversations Add a feature

192 Like
Apple Mail

There’s big news attached. The best way to manage email on a Mac gets even better with OS X Yosemite.
- Apple Mail is not a command line email client. Guest • Oct 2015
Free Mac iPhone iPad
CalDAV CardDAV Encrypted email Bundled with macOS Add a feature

218 Like
OpenProject

OpenProject is an open-source project management software with a wide set of features and plugins. It supports project timelines / Gantt charts, issue tracking, wiki...

Freemium $ $ $ Open Source Web Self-Hosted Ruby Cloudron
Kanban boards Computer-aided machining (CAM) Cost Calculator Cost estimate ... Gantt-charts Splitting costs Add a feature

58 Like
Mutt

Mutt is a small but very powerful text-based mail client for Unix operating systems. Some of its features are: color support, message threading, MIME support (including...
- It is a pure command line email client Guest • Feb 2016
- More modern features while still bein completely contained on the command line, Mutt is a very good alternative to Alpine. Guest • Jan 2018
Free Open Source Mac Windows Linux Xfce
Command line interface Support for IMAP POP3 Support S/MIME support Add a feature

54 Like
Polymail

The most powerful platform for email productivity in a beautiful native app — on desktop and mobile.

Commercial $ $ $ Mac iPhone iPad
Sync Contacts Email scheduling Email tracking Multiple Account support Add a feature

23 Like
Kontact - KMail

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...

Free Open Source Mac Windows Linux BSD
No features added Add a feature

34 Like
Kontact

Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under one roof. Thanks to the powerful...

Free Open Source Windows Linux
Convert Email to Task Add a feature

26 Like
MailMate

MailMate is an IMAP email client for Mac featuring extensive keyboard control, Markdown supported email composition.

Commercial $ $ $ Mac S/MIME OpenPGP
No features added Add a feature

19 Like
sup

Sup is a console-based email client for people with a lot of email. It supports tagging, very fast full-text search, automatic contact- list management, custom code...

Free Open Source Linux
Command line interface Console-based Multiple Account support Responsive design Add a feature

11 Like
Koma-Mail

Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive...
- Discontinued Development of KOMA Code apps stopped in January 2017. Last version of Koma-Mail, 3.83, released in March 2012, can be still downloaded from the official website.
Free Windows
Built-in RSS reader Multiple languages Multiple Account support POP3 Support ... Portable Support for Unicode Add a feature

4 Like
NeoMutt

NeoMutt is a command-line mail reader. It's a version of Mutt with added features.

Free Open Source Mac Windows Linux
Command line interface POP3 Support Add a feature

2 Like
ProfiMail

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...

Freemium Windows Mobile Android S60 Android Tablet
No features added Add a feature

3 Like
Simple Mail

Simple Mail is a mail client for Firefox. It allows you to get notified, read and write messages for multiple email accounts inside Firefox. Usage: Configure one or...

Free Mac Windows Linux Firefox
No features added Add a feature

5 Like
GyazMail

GyazMail is a email client software for Mac OS X, based on Cocoa framework, simple, easy-to-use with many features.

Commercial Mac
POP3 Support Add a feature

3 Like