Betterbird is a fine-tuned version of Mozilla Thunderbird, Thunderbird on steroids, if you will.
Delta Chat
Delta Chat is like Telegram or Whatsapp but without the tracking or central control.
Geary
Geary is an email application built around conversations, for the GNOME 3 desktop.
Balsa
Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you would expect in a robust mail client.
Te mau rata uira
Claws Mail is an email client (and news reader), based on GTK+, featuring
Quick response
Graceful, and sophisticated interface
Easy configuration, intuitive operation
Abundant features
Extensibility
Robustness and stability
Mea tupu noa mai te mau mea
Te haapiiraa e mea tupu noa mai te mau mea atoa, o te hoê ïa faaohiparaa i te mau haamaramaramaraa no te taata iho o te horo'a mai i te mau rata, te tarena e te vahi nohoraa.
Thunderbird
Ua riro te Thunderbird ei ravea no te hapono i te rata uira tamoni ore e mea ohie roa ia haamau e ia faaohipa i te reira – e ua î roa i te mau hoho'a nehenehe mau!