VIP local_part impersonation from unsolicited sender

type.inbound
and strings.contains(sender.email.local_part, ".")
and any($org_vips,
        strings.starts_with(.email, sender.email.local_part)
        and (
          sender.email.email != .email
          or (
            sender.email.email == .email and not headers.auth_summary.dmarc.pass
          )
        )
)
and (
  // ignore personal <> work emails
  // where the sender and mailbox's display name are the same
  length(recipients.to) > 0
  or length(recipients.cc) > 0
  or sender.display_name != mailbox.display_name
)
// bounce-back negations
and not strings.like(sender.email.local_part,
                     "*postmaster*",
                     "*mailer-daemon*",
                     "*administrator*"
)

// negate org domains unless they fail DMARC authentication
and (
  (
    sender.email.domain.root_domain in $org_domains
    and not headers.auth_summary.dmarc.pass
  )
  or sender.email.domain.root_domain not in $org_domains
)

// negate highly trusted sender domains unless they fail DMARC authentication
and (
  (
    sender.email.domain.root_domain in $high_trust_sender_root_domains
    and not headers.auth_summary.dmarc.pass
  )
  or sender.email.domain.root_domain not in $high_trust_sender_root_domains
)
// sender profile
and (
  not profile.by_sender_email().solicited
  or not profile.by_sender_email().any_messages_benign
  or (
    profile.by_sender_email().any_messages_malicious_or_spam
    and not profile.by_sender_email().any_messages_benign
  )
  or (
    sender.email.domain.domain in $org_domains
    and not coalesce(headers.auth_summary.dmarc.pass, false)
  )
)