Trojitá is described as ', is a fast Qt IMAP e-mail client that respects open standards and facilitates modern technologies. Trojitá values vendor-neutrality that IMAP provides and is committed to be as interoperable as possible' and is a Email Client in the Office & Productivity category. There are more than 25 alternatives to Trojitá for a variety of platforms, including Linux, Windows, Mac, BSD and PortableApps.com. The best alternative is Thunderbird, which is both free and Open Source. Other great apps like Trojitá are Microsoft Office Outlook (Paid), SeaMonkey (Free, Open Source), Evolution (Free, Open Source) and eM Client (Freemium).
Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing in one application. Itis built on the open source Mozilla Gecko engine, the same code which underlies Thunderbird and is the base for the Firefox browser.
Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility Robustness and stability
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 and flexibility to manage even the most demanding workloads.