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Ad Slot A — Leaderboard Banner (728 × 90)
Email Authentication Check
Common selectors
Email Authentication Summary — example.com
SPF✓ Valid
DKIM✓ Valid
DMARC⚠ Warning
ⓘ Frontend preview only; no live DNS request is performed.
SPF Record
✓ Valid| Qualifier | Mechanism | Value |
|---|---|---|
| + | include | _spf.example.com |
| ~ | all | — |
DKIM Record
✓ Valid| Selector | Found | Key type | Key size | Test mode (t=y) |
|---|---|---|---|---|
| default | ✓ | RSA | 2048 | — |
DMARC Record
⚠ Warning| Tag | Value |
|---|---|
| Policy (p) | none |
| Subdomain policy (sp) | — |
| Percentage (pct) | 100 |
| Aggregate reports (rua) | mailto:[email protected] |
| Forensic reports (ruf) | — |
| DKIM alignment (adkim) | r |
| SPF alignment (aspf) | r |
⚠ The DMARC policy is “none”: failing mail is not blocked.
▧Ad Slot C — In-Content Banner (970 × 90)
Understand SPF, DKIM and DMARC
What Does the Email Security Check Do?
It reads the SPF, DKIM and DMARC records a domain publishes in DNS and shows whether each one exists, what it allows and what may need attention.