Link: Base64 encoded recipient address in URL fragment with subject hash

type.inbound
and any(regex.iextract(subject.subject,
                       '[^a-z0-9](?P<string>[a-z0-9]{32,64})(?:$|[^a-z0-9])'
        ),
        any(body.links,
            strings.contains(.href_url.fragment, ..named_groups["string"])
            and any(strings.scan_base64(.href_url.fragment), strings.contains(., recipients.to[0].email.email))
        )
)