Compare software

getmail6 vs lieer: catalog facts
getmail6	lieer
Free Free and open source.	Free Free and open source under the GPL-3.0 or later.
macOS, Linux, Command line	macOS, Linux, Command line
Supports POP3, IMAP and their SSL variants Delivers to maildir, mbox or an external MDA	Two-way sync between Gmail labels and notmuch tags Keeps a full local maildir copy of the mailbox
Command line and config files only Retrieves mail but does not send or display it	Only works with Gmail accounts Requires notmuch and command-line setup
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	Account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

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