Mozilla Thunderbird
Full-featured open-source email, calendar, contacts, and RSS client.
Download (EXE) Also available in the Cinderluna Store app.

About
Thunderbird is a free open-source email, newsfeed, chat, and calendar client that makes managing multiple email accounts fast, private, and customizable.
What you can do
Everyday utilities Manage email accounts, calendars, contacts and RSS feeds
Windows 10 / 11 (64-bit)
File info & SHA-256 checksum
File
Thunderbird Setup 128.4.3esr.exeSize 63.4 MB
SHA-256
e6149c4f5194b4631e6ed2d8a698d1f7fc382d332505035010f89fe06436fee2