. . . "They may contain viruses or nasty messages.Safe EmailingEmail is the most common route for unscrupulous programs to install themselves on your PC, or for fraudsters to entice personal details from you.??? The types of emails you may receive are as follows;Emails with virus attachmentsIf you receive an email from someone you do not know, do not open it and delete it.??? If you have a firewall, emails" .