4 ms·
Mutt. Seriously. (Other software has bugs. Mutt has fleas.) See also: Neomutt. Alpine. Probably fits your requirement for "simpler", though mutt, as with
by dredmorbius 2mo ago
Mutt. Seriously.
(Other software has bugs. Mutt has fleas.)
See also: Neomutt.
Alpine. Probably fits your requirement for "simpler", though mutt, as with vim, strongly rewards familiarity.
Gnus or mu4e, under Emacs.
Old school: Elm, pine.
See: <https://en.wikipedia.org/wiki/Text-based_email_client https://en.wikipedia.org/wiki/Text-based_email_client>.