SPF and DMARC records for tempmail.dev

SPF for tempmail.dev

tempmail.dev publishes an SPF record; it names its senders directly rather than through include mechanisms, and the record ends in -all (hard fail): mail from a server that is not listed should be rejected.

DMARC for tempmail.dev

There is no DMARC record for tempmail.dev, so failed SPF or DKIM checks lead nowhere: no quarantine, no rejection, and no reports back to the owner.

Why it matters

Receivers use SPF, DKIM, and DMARC together to decide whether a message really came from tempmail.dev. A domain with a strict SPF record and an enforcing DMARC policy is hard to spoof and easier to deliver for; one without either is neither. Spaw reports has_spf and dmarc_policy on every lookup and adds a small risk weight when SPF is missing.

More checks for tempmail.dev

• MX records for tempmail.dev
• Disposable domain check for tempmail.dev
• The same answer over the API: GET /api/v1/email/domain/tempmail.dev