Microsoft Outlook Express has been discontinued. Similar apps include Thunderbird, which is free and open source. Other options are K-9 Mail, Microsoft Outlook, Evolution and Apple Mail. There's no shortage of Email Clients like Microsoft Outlook Express, with more than 25 alternatives for Windows, Linux, Mac, Android and iPhone.
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, yet having them locally accessible when on the road.
United States
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.
Germany
EU
The Bat! is a secure email client software, built to protect your correspondence against third-parties.
Moldova
Scribe is a small portable email client with an intergrated contact database and calendar. It supports all the major internet mail protocols and uses international standards where possible. Scribe doesn't required installing or uninstalled and can be used from a removable...
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 insertion via a hook system, and more.
Pegasus Mail is a free, standards-based electronic mail client suitable for use by single or multiple users on single computers or on local area networks.
New Zealand
OE Classic is an email and Usenet reader designed to be a perfect replacement for Outlook Express, Windows Mail, Windows Live Mail and even Mozilla Thunderbird.
Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other related information, such as contact information.
United States
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 but, of course, also on your desktop.
GermanyEU
TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.).
United States
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 photos, recorded sound or simply text messages to friends, from anywhere.
Features:
SlovakiaEU
Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you would expect in a robust mail client.
