Self-hosted mail trades fees for operations
Self-hosted email is control with a bill paid in operations.
Tools such as Listmonk, Mautic, BillionMail, docker-mailserver, MailHog, MailDev, MailCatcher, Maildrop, and Poste.io can replace parts of paid email stacks.
But they do not remove the hard parts: DNS records, TLS, anti-spam, sender reputation, bounces, unsubscribes, backups, upgrades, and testing.
The pragmatic split is to self-host list logic, forms, local testing, or campaign management when ownership matters, and use a proven ESP for delivery when inbox placement matters more than ideology.
Mail is infrastructure. Owning it means operating it.
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