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Dada Mail vs Keila: catalog facts
Dada Mail	Keila
Freemium The free version has list and subscriber limits; paid Pro subscriptions add unlimited…	Freemium Free to self-host; the hosted Keila Cloud is a paid service.
Web, Self-hosted	Web, Self-hosted
Supports newsletters and email discussion lists Tracks opens, clicks, unsubscribes, and bounces	Block, Markdown, MJML and plain-text editors Supports SMTP plus SES, Sendgrid, Mailgun and Postmark
The free version is limited to three lists and 100 subscribers per list Requires a server environment capable of running Perl	Fewer marketing automation features than large commercial platforms Larger lists need a separate sending provider
Web application, Self-hosted	Self-hosted, Hosted service
Open source	Open source
License: GPL-2.0	License: AGPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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