catalog · 7 tools

Mail Clients

Sorted by GitHub stars, which measures attention rather than fitness. Read the release date and the commit count next to it before picking one.

Tool	What it is	License	Stars	Last release	Commits 3mo
ImapSync Simple IMAP migration tool for copying mailboxes to other servers. NLPL · released unknown	Simple IMAP migration tool for copying mailboxes to other servers.	NLPL	4,146	n/ano date	8
Mutt Small but very powerful text-based mail client. GPL-2.0 · released unknown	Small but very powerful text-based mail client.	GPL-2.0	485	n/ano date	n/a
parse-dmarc DMARC aggregate report parser with a built-in dashboard. Fetches reports over IMAP, stores them, and flags spoofing. Single Go binary with embedded Vue UI, SQLite storage, and Prometheus metrics (alternative to PowerDMARC, EasyDMARC, Dmarcian). Apache-2.0 · released 2026-09-05	DMARC aggregate report parser with a built-in dashboard. Fetches reports over IMAP, stores them, and flags spoofing. Single Go binary with embedded Vue UI, SQLite storage, and Prometheus metrics (alternative to PowerDMARC, EasyDMARC, Dmarcian).	Apache-2.0	200	v1.5.72026-09-05	28
Sylpheed Still developed predecessor to Claws Mail, lightweight mail client. GPL-2.0 · released unknown	Still developed predecessor to Claws Mail, lightweight mail client.	GPL-2.0	188	n/ano date	0
Claws Mail Old school email client (and news reader), based on GTK+. GPL-3.0 · released unknown	Old school email client (and news reader), based on GTK+.	GPL-3.0	n/a	n/ano date	n/a
Thunderbird Free email application that's easy to set up and customize. MPL-2.0 · released unknown	Free email application that's easy to set up and customize.	MPL-2.0	n/a	n/ano date	n/a
aerc Terminal MUA with a focus on plaintext and features for developers. MIT · released unknown	Terminal MUA with a focus on plaintext and features for developers.	MIT	n/a	n/ano date	n/a

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