Google, Yahoo, and Microsoft have made DMARC authentication a hard requirement for bulk senders — misconfigured domains now go straight to spam or get rejected outright. Most businesses don't know their domain is broken until a campaign lands in the void. This agent runs a complete deliverability audit the moment you paste your domain and gives you the exact DNS records to paste — provider-specific, no guessing. ## What's included - **Complete authentication audit:** - **SPF** record analysis including recursive lookup-count against the RFC 7208 10-lookup limit - **DKIM** key discovery across 12 common selectors (default, google, k1, k2, selector1, selector2, mailo, mxvault, etc.) - **DMARC** policy evaluation with 2026 compliance scoring (p=none / quarantine / reject, rua, ruf, pct, alignment) - **MX record** health, hostname resolution, TLS support - **PTR / rDNS** verification for sender IP reputation - **DNSBL blacklist sweep** across 50+ databases — Spamhaus ZEN, Barracuda, SpamCop, SURBL, SORBS, Microsoft SNDS, and more - **Health score 0-100** with color-coded action list (CRITICAL / WARNING / INFO / PASS) - **Ready-to-paste DNS values** — not "check your SPF record" but the exact TXT record + provider-specific navigation steps for Cloudflare, Route53, GoDaddy, Namecheap, Google Workspace, Microsoft 365 - **Cold outreach warm-up schedule** — day-by-day volume ramp calibrated to your ESP (Mailgun, Postmark, SendGrid, Instantly, Smartlead) with danger signal thresholds - **DMARC upgrade path** — p=none → p=quarantine → p=reject with the dashboard data review at each stage - **Weekly cron monitoring** — every Monday re-checks all monitored domains, alerts on new blacklist listings, record changes, or health score drops ## Limitations - **Not an ESP** — diagnoses + fixes infrastructure; sending still runs through Mailgun / Postmark / SendGrid / Instantly / your existing rail - **Not a campaign manager** — pairs with Cold Email Waterfall System or Email Campaign Manager (separate listings) for actual sending strategy - **Not legal counsel** — surfaces deliverability + reputation; CAN-SPAM / GDPR compliance disputes need a privacy attorney - **Cannot edit DNS for you** — provides exact records + navigation steps; you paste them in your registrar / DNS host - **Domain-scoped** — multi-domain enterprises benefit from per-domain runs; bulk audits handled via API on request ## Best fit SaaS founders, marketers, agencies, and SDR teams running cold + warm email at any scale where deliverability matters. Cold-outreach operators warming new domains for outbound sequences. Anyone whose newsletter recently saw open rates collapse from 30%+ to 5%. Especially valuable in 2026 where Gmail + Yahoo enforce DMARC for any sender hitting 5,000+ messages/day — one misconfigured DKIM selector or unaligned DMARC policy silently kills entire campaigns. At $29/mo, catching one campaign-killing config issue pays for years of subscription.
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