Best free mail client off line

Here are some of the best free offline mail clients:

Thunderbird: A popular and highly customizable email client developed by Mozilla. It's available for Windows, macOS, and Linux.
Claws Mail: A lightweight and feature-rich email client that's available for Windows, macOS, and Linux. It's known for its ease of use and customization options.
Sylpheed: A fast and lightweight email client that's available for Windows, macOS, and Linux. It's known for its simplicity and ease of use.
Gmail Offline: While not a traditional email client, Gmail Offline is a Chrome extension that allows you to access your Gmail account offline. It's available for Windows, macOS, and Linux.
Microsoft Outlook: While not entirely free, Microsoft Outlook offers a free version that allows you to access your email accounts offline. It's available for Windows and macOS.
eM Client: A feature-rich email client that's available for Windows and macOS. It offers a free version with limited features, as well as a paid version with additional features.
Foxmail: A popular email client in China that's available for Windows and macOS. It's known for its ease of use and customization options.
The Bat!: A powerful and feature-rich email client that's available for Windows. It's known for its security features and customization options.

All of these email clients are free to download and use, and they offer a range of features such as:

When choosing an offline email client, consider the following factors:

Ease of use: How easy is it to set up and use the client?
Customization options: Can you customize the interface and settings to your liking?
Features: Does the client offer the features you need, such as spam filtering and virus scanning?
Compatibility: Is the client compatible with your operating system and email account providers?
Security: Does the client offer robust security features to protect your email account and data?