Before paying $250/hour for an email deliverability consultant, run our automated 360° Domain & Deliverability Diagnostic below — and access all 15 free engineering tools (SPF/DKIM/DMARC/BIMI/PTR, Blacklist Check, Inbox Placement & Smart SMTP List Hygiene) in one place.
Enter your sending domain to get an instant consultant-level diagnostic of your MX redundancy, SPF lookup count, DMARC policy, and DNSBL reputation:
Instant 0-credit pre-scan (duplicates, typos, disposables, roles) + live 5-email Smart SMTP sample check. Unlock 5,000 credits for $19 (never expire).
A complete 2026 email deliverability stack requires: (1) a 7-Layer Smart SMTP Email Verifier & List Cleaner to keep hard bounces below 0.5%, (2) DNS authentication inspectors and generators for SPF, DKIM (2048-bit), DMARC, PTR (FCrDNS), and BIMI, (3) a real-time DNSBL Blacklist Checker, and (4) an Inbox Placement & Spam Words Tester. KaijuVerifier provides all 15 tools under one roof.
90% of deliverability drops are caused by three fixable technical issues: uncleaned email lists (>2% bounce rate), broken SPF/DKIM/DMARC alignment, or a DNSBL blacklist listing. Our free Automated Deliverability Consultant diagnostic below identifies all three in under 3 seconds and gives you exact copy-paste DNS and list-hygiene fixes.