Domain.Posture

AI companies

Email security of 18 AI companies

The labs shipping frontier models, graded on the unglamorous email-security basics.

Across these 18 domains, 100% publish SPF, 100% publish DMARC and 88.9% enforce it (reject or quarantine), 11.1% sit on p=none, and 100% sign with DKIM. Scanned June 24, 2026.

Every domain in this cohort

DomainSPFDMARCDKIMMTA-STSTLS-RPT
anthropic.comSoftfailRejectYesNoNo
character.aiSoftfailRejectYesNoNo
cohere.comSoftfailQuarantineYesNoNo
deepinfra.comSoftfailQuarantineYesNoNo
elevenlabs.ioHardfailQuarantineYesNoNo
fireworks.aiSoftfailQuarantineYesNoNo
groq.comSoftfailRejectYesNoNo
midjourney.comSoftfailQuarantineYesNoNo
mistral.aiSoftfailQuarantineYesNoNo
modal.comHardfailRejectYesNoNo
openai.comHardfailRejectYesNoNo
perplexity.aiSoftfailQuarantineYesNoNo
poe.comSoftfailQuarantineYesNoNo
replicate.comSoftfailQuarantineYesNoNo
runwayml.comHardfailQuarantineYesNoNo
together.aiSoftfailQuarantineYesNoNo
huggingface.coSoftfailNone (monitor)YesNoNo
stability.aiSoftfailNone (monitor)YesNoNo

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