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Featured in Domain Arrivals · 2026-08-17

difuzio: Mailing Lists at Home

difuzio.org ↗ · Developer Corner · score 82.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

An open-source, self-hosted mailing-list and newsletter engine written in Go, designed as a modern successor to Sympa.

Why it surfaced

difuzio keeps the architecture unusually concrete: one binary, a database, no third-party services, and deployment options ranging from SQLite and an existing mailbox to Postfix and MariaDB. Its feature list goes well beyond sending mail, covering VERP delivery, complaint handling, DKIM and DMARC alignment, Prometheus metrics, signed webhooks, and a reputation circuit breaker that leaves reactivation to a human.

Monica’s Calendar of Flowers

August 17’s newborn domains include a calendar that spreads flowers for Monica across the months after JP’s death, 17 years of a master mariner’s logbooks, the seconds between a modem connection and the first web request, and an Indian bus cabin carrying 632 songs.

This is one of 1,000 discoveries in the 2026-08-17 Domain Arrivals issue.