Attachment: PDF file with recipient domain and ATT eCheckRun pattern

type.inbound
and any(filter(attachments, .file_type == "pdf"),
        strings.icontains(.file_name, recipients.to[0].email.domain.sld)
        and strings.starts_with(.file_name, "ATT")
        and strings.icontains(.file_name, "eCheckRun")
)