Tools

Email deliverability tools

Each tool solves one problem. Run them before campaigns, client onboarding, or signup flows—no install required.

DNS & Deliverability Checker

Audit SPF, DKIM, DMARC, MX, nameservers, and major blocklists for any domain. Export JSON, CSV, or TXT reports.

  • SPF, DKIM, DMARC
  • 13+ DNSBL zones
  • Health score
  • Export reports
Run domain audit

Disposable Email Detection

Validate addresses against 5,000+ throwaway domains and disposable MX infrastructure. Bulk check with full JSON output.

  • Blocklist + MX signals
  • Trust score
  • Bulk paste
  • API-style JSON
Check an email

Shared across all tools

Live DNS lookups

Public DNS via Google DNS—see what receivers see for authentication and mail routing.

Authentication checks

SPF, DKIM selectors, and DMARC policy in one pass with clear pass / warn / fail states.

Reputation signals

DNSBL and URIBL scans plus disposable domain and MX infrastructure detection.

Exportable results

Download or copy structured reports—built for client handoffs and internal QA.