Courier

A native macOS email client, written in Swift, for macOS 14 and later. Fast, private mail: all your accounts in one place, stored only on this computer. Works with IMAP and SMTP, such as your own domain, Gmail, iCloud, Fastmail or GMX. Passwords stay in the Keychain.

Courier is made by Alpha Tembo in Harare. It is for Mac. Try it free for 3 days, then one activation code runs it on one Mac. US$29 once.

US$29 for one Mac, after a 3-day trial.