The online DMARC, SPF, DKIM and BIMI checker reads public TXT records for a domain, shows a score, detected policies, DKIM selectors, BIMI logo settings and recommendations for common email authentication issues.
✓SPF should be published as one TXT record at the domain root, otherwise receivers may ignore the policy.
✓DMARC p=none is useful for monitoring, but domain protection usually moves to quarantine or reject.
✓DKIM is selector-based, so different mail providers may require checking several selectors.
✓BIMI is optional, but it can improve brand display in mailbox providers that support it.
✓The checker performs DNS TXT lookups only and does not connect to mail servers.
✓After DNS changes, wait for TTL propagation before checking again.
