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Permanent methodology version

Public email score v2

Published on 10.09.2026. This URL permanently describes the assessment basis of stored results and is not retrospectively reinterpreted.

Binding principles

  1. Only email DNS, email authentication and mail transport protection contribute to the score, rating and coverage. Their weights are 20:25:15, normalized to 100 percent.
  2. Website TLS, web security headers, blocklists, reputation and website availability are additional information and do not affect the email assessment.
  3. Unknown and not applicable results never count as passed. A rating requires at least 50 percent weighted email coverage.
  4. Weekly and monthly summaries require at least 75 percent email coverage and six assessed email signals. Stored findings from older scans are re-evaluated without network requests.
  5. Public checks use public DNS and limited, validated, IP-pinned HTTPS on port 443. No anonymous SMTP checks or mailbox access.
  6. The score is a technical snapshot, not a certificate, legal assessment or a promise of delivery or inbox placement.

Version status

Profile
public-email-trust-v2
Status
historical · replaced by email score v4
Check profiles
6
Published
10.09.2026

Included tools

Check blocklists

Checker
1.0.0
Scope
Public DNS and IP-pinned HTTPS to the configured provider
References
Transparent provider sources and their respective terms of use
Open tool

Check DMARC

Checker
1.0.0
Scope
DNS
References
RFC 7489, RFC 9989, RFC 9990
Open tool

Check MX and DNS

Checker
3.0.0
Scope
DNS
References
RFC 1034, RFC 1035, RFC 7505
Open tool

Check MTA-STS

Checker
1.0.0
Scope
DNS and IP-pinned HTTPS on port 443
References
RFC 8461
Open tool

Check your domain

Start without signing in. History and alerting require a verified domain and an available account.