Email Authentication Scanner

Email Deliverability Checker

Check your DNS email authentication setup or generate a unique test inbox so you can inspect a real email sent from Gmail, Mailketing, Workspace, or your own SMTP sender.

Enter a root domain such as example.com (no mailto: or paths).

Checking SPF, DKIM, DMARC, and MX records…

Tool Spotlight

Email Deliverability Checker - SPF, DKIM, DMARC, and MX Analysis

Analyze your domain's SPF, DKIM, DMARC, and MX records to catch configuration gaps before they hurt deliverability. Pair it with SPF Checker and DMARC Lookup for deeper troubleshooting.

Key Features

  • Score SPF, DKIM, DMARC, and MX in one report
  • Summarize email authentication health with a 100-point score
  • Show record values and missing-record warnings
  • Give short DNS fix guidance for each failed area
  • Auto-fill and auto-analyze from the domain query parameter when logged in

Use Cases

  • Auditing a new sending domain before outreach
  • Fixing mail authentication after provider changes
  • Checking whether DMARC enforcement is missing
  • Reviewing deliverability basics before launching campaigns