Mailspring is an easy-to-use cross-platform IMAP email client.

Betterbird is an enhanced version of Thunderbird with new features and bug fixes not available in Mozilla Thunderbird.

Mozilla Thunderbird Eclipse is an email client prioritizing safety, speed, and user-friendliness. It has numerous built-in features, such as easy message search, customizable views, and IMAP/POP and RSS support. A Portable version is also available.

MailEnable Standard provides robust SMTP, POP3 and web mail services for Microsoft Windows servers.

Mailtrack is a Chrome extension that seamlessly tracks your Gmail, keeping you informed of the status of your message.

eM Client is a feature-rich email client that includes a modern, easy-to-use interface and offers a calendar, tasks, chat, contacts, and more.

Mozilla Thunderbird Eclipse Portable is an email client designed with a focus on safety, speed, and ease of use. It comes equipped with a variety of built-in features that enhance the user experience. The latest beta and installer/Linux/Mac versions are also available.

Mozilla Thunderbird Eclipse ESR is a versatile and free email application that stands out due to its ease of customization and a rich set of features that enhance user experience.
Portable version also available.

Mozilla Thunderbird Eclipse is an email client prioritizing safety, speed, and user-friendliness. It offers a wide range of built-in features, including a user-friendly message search, customizable views, and support for IMAP/POP and RSS. The latest beta and a portable version are also available.

OE Classic is an email and Usenet reader designed to look and feel like the classic Outlook Express.

Foxmail is a free lightweight email application that offers you many useful features and a user-friendly interface and supports POP3 accounts, as well as Hotmail accounts, with support for HTML email, mailbox encryption, multiple accounts and more.

The Bat! Home Edition was created for dealing with the ever-growing volume of emails as quickly as possible, saving you valuable time.

Becky! Internet Mail is a feature-rich Internet email client.

Mozilla Thunderbird Eclipse ESR Portable is a highly customizable email application that offers a wide range of features to improve the user experience. Its versatility allows users to tailor the application to their specific needs, making it an excellent choice for managing email effectively. Available as an installer as well as for Linux and Mac.

SmarterMail is a Microsoft Exchange alternative that natively supports MAPI.

MBox Viewer is a lightweight, portable, and free tool for Windows that makes opening, reading, and recovering MBOX and EML files simple

Gpg4win (GNU Privacy Guard for Windows) is encryption software for files and emails.

Mailbird connects all your preferred email, calendar, task, and messaging apps into one versatile utility.

Claws Mail is a plug-in-enabled email client and newsreader featuring a familiar, intuitive interface with easy, flexible configuration.

SysTools IMAP Backup lets you back up Gmail, Yahoo, Outlook, iCloud, AOL, and any IMAP email account, while preserving the full folder structure, attachments, and metadata. It also introduces an innovative multi-account addition feature that significantly enhances user convenience.

Mozilla Thunderbird Eclipse Portable is an email client that prioritizes safety, speed, and user-friendliness. It has numerous built-in features, such as easy message search, customizable views, and IMAP/POP and RSS support. Available as an installer and for Linux/Mac.

Mail Attachment Downloader downloads just the email attachments based on your search preference without downloading the mail.

Email Studio .NET is a focused, desktop-based tool built for anyone who needs to design, manage, and send personalized emails, without relying on bloated web apps or overkill marketing suites.

SysTools IMAP Migration Tool is a specialized utility designed to help you migrate email data between any two IMAP-enabled accounts. It preserves read/unread status, folder structure, and attachments during the transfer process.

SysTools PST Converter is a powerful and user-friendly utility designed to convert Outlook PST files into various formats including EML, MSG, PDF, MBOX, HTML, and more.