usps.com email records
What usps.com publishes in public DNS for SPF, DKIM, DMARC, MX and BIMI, resolved on 2026-08-04.
SPF
v=spf1 ip4:56.0.0.0/16 -all
0 of 10 DNS lookups.
DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:reports@dmarc.cyber.dhs.gov,mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
- policy
- p=reject
- applies to
- 100% of mail
- reports
- mailto:reports@dmarc.cyber.dhs.gov,mailto:dmarc_rua@emaildefense.proofpoint.com
- alignment
- adkim=r, aspf=r
DKIM
No key found on the 24 selectors probed. Selectors cannot be enumerated from DNS, so this is not proof of absence — why.
MX
Notes on this configuration
No DKIM key found on 24 common selectors. It may still exist on a custom selector.
Check it live
The above is a snapshot from 2026-08-04. Re-resolve it now: