Introduction Last week I came across an interesting email address with an Excel Spreadsheet attachment: There was no content in this email other than FYI and regards. The sender of this email was info@radheshyamcorp.community and the email header consisted of the following: Received: from server.radheshyamcorp.community (unknown [162.241.204.238]) by mail.impexron.de (Postfix) with ESMTPS id 1902D1BE1B5D for […]