Dropping mass-mailer e-mails spares end-users the trouble of deleting those messages manually and saves time otherwise spent on deleting empty mass-mailed messages. Since these messages are automatically sent by infected computers then they are of no value to the recipient. Normal e-mail usage does not require receiving executable attachments and executable attachment received via e-mail are by now almost always worms and viruses. In fact some e-mail clients by default do not allow the user to open such attachment. F-Prot Antivirus for Linux was especially developed to effectively eradicate viruses threatening workstations running Linux. It provides full protection against macro viruses and other forms of malicious software – including Trojans.