Postbox Alternatives

Thunderbird is a free, open-source, cross-platform email, news and instant messaging client. The project strategy is modeled after Mozilla Firefox. Features:Free,Open,Source,Mac,Windows,Linux,BSD,

To manage as part of the Microsoft Office Suite, Outlook E-Mail, calendar, contacts, and tasks from the personal information manager that allows you. Features:Freemium,Mac,Windows,Web,Android,iPhone

Mailbird e-mail, contacts, calendar, apps, task management, video meetings a communication platform allinone more than just an E-Mail client, and Features:Freemium,Windows

The big news is connected. OS X Yosemite on a Mac will be better with the best way to manage E-Mail better. Features:Free,Mac,iPhone,iPad

A modern and easy-to-use interface eM Client is a full-featured E-Mail client. eM-Client, calendar, tasks, contacts and chat features. Features:Freemium,Windows

Evolution is the official personal information manager and workgroup information management tool for GNOME. E-mail, calendar, address book, task list United Features:Free,Open,Source,Linux,BSD,S/MIME,GNOME,OpenPGP

Claws Mail-and News-Reader), GTK+ - based, this is a fast reaction with an elegant e-mail client interface, simple configuration and advanced Features:Free,Open,Source,Windows,Linux,BSD

Geary is a Gnome 3 is built for e-mail application. Read with a modern interface and easy to use, and send an e-mail. Features:Free,Open,Source,Linux,BSD,GNOME

With all the great features of the e-mail application: (Long/Short), beer, confectionery, cloud, and support for various E-Mail services (multiple) attachments.add Features:Free,Mac,iPhone,iPad,Apple,Watch

The lighter the plane is the fastest E-mail client for Mac and Lightning. Unified inbox and folders-editable HTML pages with Multi-Account feature list: accounts: Features:Commercial,Mac,iPhone,iPad,Apple,Watch

E-Mail, synchronization, portability, network support, Android-and iOS-versions for Windows offers powerful, high-featured personal information manager. Features:Freemium,Windows,Android,iPhone

Mutt Unix operating systems, a small but very powerful text-based e-mail client. Some of the features, including color support, message threading, mime support (: Features:Free,Open,Source,Mac,Windows,Linux,Xfce

Sylpheed (mail carrier, easy, light and simple, but faturafull E-Mail client. For example, Windows, Linux, BSD, Mac OS X and Sylpheed runs on many systems, Features:Free,Open,Source,Mac,Windows,Linux,BSD,

Improve the efficiency and mainspring Mac, Windows and Linux for a beautiful, fast E-Mail client, better you send an e-mail. An optional pivot is free to use and pro Features:Freemium,Mac,Windows,Linux,Arch,Linux,Fedora

A beautiful native e — mail app for the desktop and mobile the most powerful productivity platform. Features:Commercial,Mac,iPhone,iPad