There are a lot of suspicious emails attached to emails which may contain Malware. Malware is a method of infecting your computer with hideous applications like Trojans and key-loggers If you are unsure of the email play it safe – don’t open, just delete it. I have noticed through the mail logs there are spammers/hackers sending random emails to accounts. Most email accounts don’t exist which are failed immediately but a few get through. The emails use different email hosts, which means different email IP’s which suggest these emails originate from a compromised computer which possibly has malware or known as a botnet.