eM Client Alternatives for Windows
There are many alternatives to eM Client for Windows if you are looking to replace it. The most popular Windows alternative is 
Thunderbird, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to eM Client and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to eM Client are 
Microsoft Office Outlook (Paid), 
Mailspring (Freemium), 
Mailbird (Paid) and 
Postbox (Paid).
- Koma-Mail is an email client which is comfortable and has very handy functions.
- Clyton is an email client with advanced security and spam filtering features. Although priced for the general public, Clyton possesses the reliability and security required by businesses.
- TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.). Features:
- EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and AOL.
- Quickly see the time until your next meeting from any of your calendars. Click on the button to be taken to your calendar.Update:
- InScribe is a small and fast email client with an intergrated contact database and calendar. InScribe is the PRO version with UNLIMITED Receive Accounts and Email Identities
- 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:
- Agent is a powerful newsreader and email program for managing your communications:
- Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support.
- yMail2 is a standalone email client for Windows (and Linux), available for free since 2003.