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.

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.

MFCMAPI provides access to MAPI stores to facilitate the investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development.

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.

Howard Email Notifier will keep you notified about new emails in your outlook.com, live.com, hotmail.com, mail.google.com, mail.yahoo.com, facebook.com, LinkedIn, twitter.com, e.mail.ru, orange.fr, IBM / Lotus Notes, mail.virgilio.it, O2.pl, Yandex, Laposte.net and www.zoho.com inbox.

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

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.

MailStore Home lets you archive your private emails from almost any email source and search through them efficiently.

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.

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

SmarterMail is a Microsoft Exchange alternative that natively supports MAPI.

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.

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

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.

Email Director .NET is a free Windows-based email, SMS, and fax marketing tool.

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

VOVSOFT VCF Editor is designed to manage and edit Windows vCard files (VCF) efficiently offline.

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

hMailServer is an Open Source e-mail server that can be used by any user type, from internet service providers, and governments, all the way to regular users.

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

Proton Mail offers a refreshing change if you're tired of your inbox being a data mine for advertisers.

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

Kiwi for Gmail is an excellent app that brings Gmail and Google apps directly to your desktop.

POP Peeper is an email notifier that runs in your Windows taskbar and alerts you when you have new email messages.