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Mail Backup X vs getmail6: catalog facts
Mail Backup X	getmail6
Paid Free to try, with a paid licence to keep using it.	Free Free and open source.
Windows, macOS	macOS, Linux, Command line
Supports many desktop clients and online mail services Archive viewer and format converter included	Supports POP3, IMAP and their SSL variants Delivers to maildir, mbox or an external MDA
Proprietary and paid after the trial Developer details are not clear from the site	Command line and config files only Retrieves mail but does not send or display it
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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