Compare software

nmail vs aerc: catalog facts
nmail	aerc
Free Free and open source under the MIT and GPL-2.0 licenses.	Free Free and open source under the MIT licence.
macOS, Linux, Command line	macOS, Linux, Command line
IMAP and SMTP support Searches local cache and server messages	Composes in an embedded terminal, so you can read other mail while replying Built for the git mailing-list patch workflow, with diff highlighting and repo tabs
Does not support multiple email accounts in a single session. Does not provide a threaded view.	Terminal only, with vim-style keybindings to learn HTML mail rendering is a terminal browser, so complex newsletters look poor
Downloadable app	Downloadable app
Open source	Open source
License: MIT, GPL-2.0	License: MIT
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.