Email authentication audit for any domain, DNS only. Recursively counts SPF DNS ...
https://api.glowewebsites.com/agent/email-auth-auditOverview
Email authentication audit for any domain, DNS only. Recursively counts SPF DNS lookups against the RFC 7208 limit of 10, detects duplicate SPF records, +all/?all, and ptr use, and names the senders it finds (Google, Microsoft 365, SendGrid, Mailchimp...). Parses DMARC policy, pct and rua, probes common DKIM selectors, and checks MTA-STS, TLS-RPT and BIMI. Returns a 0-100 score, grade and prioritized fixes.