Thunderbird Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox. Free Open Source Mac Windows Linux BSD PortableApps.com ... Haiku Extensible by Plugins/Extensions Built-in RSS reader Calendar integration Customizable ... Extensible by Plugins/Extensions Extensible by Plugins/Extensions Free API Import from Google Reader Integrated Chat Integrated Web Browser Multiple Account support Export to OPML Import feeds from OPML POP3 Support Portable Tabbed interface Add a feature 1739 Like The closest thing to Incredimail on a Mac that I know of. At least you can change the "theme" of the interface to keep the app from being boring. Good, reliable program. Guest • Nov 2015 Disagree Agree
Microsoft Office Outlook Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks. Commercial Mac OS X Windows Web Android iPhone ... Android Tablet Windows Phone iPad Apple Watch Android Wear Built-in Calendar Dark theme Signature with image Add a feature 308 Like
Apple Mail There’s big news attached. The best way to manage email on a Mac gets even better with OS X Yosemite. Free Mac OS X iPhone iPad Bundled with macOS Add a feature 205 Like
Spark E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more. Free Mac iPhone iPad Apple Watch Calendar integration Cloud sync Export to PDF Add a feature 55 Like
Postbox Postbox is an email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power... Commercial Mac OS X Windows Multiple Account support Box.com integration Built-in RSS reader Dropbox integration ... Extensible by Plugins/Extensions Support for IMAP Multiple languages Onedrive integration POP3 Support Tabbed interface Add a feature 128 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... Free Open Source Mac OS X Windows Linux Xfce Command line interface Support for IMAP POP3 Support S/MIME support Add a feature 51 Like
Polymail The most powerful platform for email productivity in a beautiful native app — on desktop and mobile. Freemium Mac OS X iPhone iPad Sync Contacts Email scheduling Email tracking Multiple Account support Add a feature 20 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 OS X Windows Linux BSD No features added Add a feature 30 Like
Astro Modern email and calendar apps for Mac, iOS, Android, Slack and Alexa, powered by Artificial Intelligence. Astro keeps you focused on what's most important. Free Mac Android iPhone iPad Slack ... Amazon Echo (Alexa Voice Service) Calendar integration Email tracking Google Calendar integration Multiple Account support ... Snooze reliability Add a feature 20 Like
Zimbra Desktop The free Zimbra Desktop client allows you to meld the online and offline worlds – storing and synching your email, calendar, contacts, files and documents in the cloud... Free Personal Mac OS X Windows Linux No features added Add a feature 29 Like
MailMate MailMate is an IMAP email client for Mac featuring extensive keyboard control, Markdown supported email composition. Commercial $ $ $ Mac OS X S/MIME OpenPGP No features added Add a feature 17 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 OS X Windows Linux Firefox No features added Add a feature 5 Like
Hiri Fast, good looking email client. Lighter than MS Outlook with some unique and clever features. Works ONLY with Outlook / Exchange. Commercial $ $ $ Mac OS X Windows Linux Calendar integration Convert Email to Task Add a feature 12 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 OS X POP3 Support Add a feature 3 Like
Columba Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management... Free Open Source Mac OS X Windows Linux BSD No features added Add a feature 3 Like Discontinued The project is no longer developed. Last version, 1.4, released in March 2007, can be still downloaded from SourceForge.
