ReputeCast
Self-hosted newsletters that protect your inbox placement
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ReputeCast is a free, open-source, self-hosted newsletter platform built around deliverability. Before you send, it checks 80+ blocklists, SPF/DKIM/DMARC/BIMI, spam triggers, Gmail clipping, broken links and list quality, then gives Pass, Warn or Block with a fix. While sending, it watches bounces and complaints and pauses risky routes. Send via your own SES, Postmark, Mailgun, SendGrid, Resend, Postal or SMTP, with failover.
PH · launched Nov 6, 2026 · 1 upvote (top 65%) · 0 views
Niche: email marketing and deliverability tools · 107 launches, 6 in the last 7 days ▼ -40% · Explore this niche →
Category and tags
- Marketing
- Communication
- B2B
- Not AI
- Commercial product
- Newsletters
- Open Source
- Email Marketing
- GitHub
Visit website ↗ Source listing ↗
More like this: all 107 launches in email marketing and deliverability tools →
Could you build this?
Partial The self-hosted newsletter platform and DNS-based checks (SPF/DKIM/DMARC, blocklists) are buildable, but meaningful deliverability guidance and bounce-based reputation monitoring need expertise and reputation data that vibe coding doesn't supply.
What it would actually take: Build a Go or Node service with SMTP sending, a DNS checker for SPF/DKIM/DMARC/BIMI, and DNSBL lookups against 80+ lists, plus a rules engine for spam triggers and a dashboard. The hard parts are the spam-filter heuristics that match real mailbox provider behavior and the sender-reputation signals (feedback loops, Postmaster data), which require long-term sending experience and provider relationships.
Competitors
Other products that read as similar to this one : 131 launches clear the similarity bar, closest 8 shown.
Attention rank: #52 of 132 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 371 days after the earliest competitor.
- AudienceTrim · ph · 2026-10-07 · 1 upvotes · similarity 0.42
- Caveat, a self-hosted publishing and newsletter tool · hn · 2026-09-08 · 7 upvotes · similarity 0.42
- mailcheap · github · 2026-10-10 · 925 upvotes · similarity 0.41
- Reputely · ph · 2026-10-23 · 2 upvotes · similarity 0.41
- Veamcast · ph · 2026-11-05 · 1 upvotes · similarity 0.41
- GitHub · ph · 2026-10-05 · 1 upvotes · similarity 0.40
- SubsiMail · ph · 2026-10-28 · 2 upvotes · similarity 0.40
- Grace Mail · ph · 2026-10-10 · 1 upvotes · similarity 0.39
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.