Description

Detects messages containing .onion (Tor network) links from unsolicited senders that either lack proper DMARC authentication or are not from trusted domains.

References

No references.

Sublime Security
Created Jul 30th, 2025 • Last updated Sep 23rd, 2026
Source
type.inbound
and any(body.links, .href_url.domain.tld == "onion")
and not profile.by_sender_email().solicited
// and the sender is not from high trust sender root domains
and not (
  sender.email.domain.root_domain in $high_trust_sender_root_domains
  and coalesce(headers.auth_summary.dmarc.pass, false)
)
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