What this configuration means
Each section below is shown because the observed records match its condition. The explanations are reviewed text selected by the data, not generated from it.
DMARC requests quarantine
amazon.com asks receivers to quarantine mail that fails alignment. Unaligned mail is routed to spam rather than refused, which limits the damage from spoofing while leaving a margin for misconfigured legitimate senders. The usual next step is p=reject after confirming through aggregate reports that no legitimate source still fails.
A single mail exchanger
Inbound mail depends on one published host, amazon-smtp.amazon.com. That host belongs to Self-hosted or other, which provides its own redundancy behind the name. A single MX is normal for hosted mailbox providers and a risk for self-hosted ones.
No common DKIM selectors found
None of the selector names commonly used by major platforms resolve under _domainkey.amazon.com. DKIM has no enumeration mechanism, so the domain may sign with a selector this check does not try; absence here is not proof that DKIM is unused. It does mean no platform with a conventional selector is publicly visible.
No transport-security policy
amazon.com does not publish MTA-STS, so senders negotiate TLS opportunistically and fall back to clear text if an attacker strips the upgrade. Publishing TLS-RPT first, then MTA-STS in testing mode, adds transport protection for inbound mail without risk to delivery.
BIMI record present
A BIMI record is published at default._bimi.amazon.com. Logo display additionally requires an enforcing DMARC policy — which this domain has and, at most providers, a verified mark certificate.
Sending platforms visible in DNS
Public records reference one platform: Amazon SES. Each SPF include or DKIM selector is an authorization that someone must own. Platforms no longer in use remain authorized until the records are removed.
Change history
No change has been observed since the first snapshot on 2026-09-22. The domain is re-checked regularly and a new entry appears here when any record above changes.
How to read this report
The grade summarizes two records only: A means an enforcing DMARC policy with SPF hard fail; B enforcing DMARC with SPF; C monitoring-only DMARC or a weak SPF qualifier; D one of SPF or DMARC missing; F neither published. It is a prioritization aid for the public control plane, not a statement about deliverability, reputation or the security of the organization behind the domain.
DMARC policy is discovered with the RFC 9989 DNS tree walk, so a subdomain with no record of its own is reported with the organizational policy it inherits. DKIM selectors are discovered from common names only; a domain may sign with selectors this check does not try. Everything on this page comes from public DNS as observed on 2026-09-23; caches and split-horizon DNS can show different values elsewhere.
If you operate amazon.com and want a record corrected or the report removed, contact Mailybox.