You should not open email attachments from unknown, fancy apps, suspicious or untrustworthy source. If not familiar with the sender, opening, downloading and executing any files should be avoided. Email attachments containing such files might leak important data and even corrupt your computer or mobile. Also, genuine anti-virus and genuine operating systems are to be used and back up of the files are to be done frequently.
Such spams and phishing are increasing everyday and we are defending thousands of our email users and filtering 24/7 via our firewalls and servers. If required, you may shift and use secure IDs on @yourname.com – but agencies cannot comment or support for free yahoo, msn, outlook or gmail IDs. Advise to not click or act on such spam or phishing emails and note that we DO NOT send any such email to any of our customers or users.