Compare software

nmh vs aerc: catalog facts
nmh	aerc
Free Free software under the BSD-3-Clause license.	Free Free and open source under the MIT licence.
macOS, Linux, Command line	macOS, Linux, Command line
Uses small, single-purpose mail programs Commands can be combined in shell scripts	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
Gmail API access is experimental Gmail OAuth2 support for desktop applications has been dropped	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: BSD-3-Clause	License: MIT
Not stated if an account is needed	No account needed
Not stated if it 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.