I am new to Microsoft outlook. I have this small doubt. If I use this said program I think it is possible, whenever I connect to the internet, for the spam mails to get into my computer. In case, if there were virus or something malicious, is it possible to affect my computer even if I don't open it? How can I prevent it? When I use web based mail account I just delete the bulk mails/ junk mails. Most of the time, they would be in the Junk Mail folder. I just delete for ever without opening. Here even though I donâ€™t open them they are in the computer, Right? Please clarify my doubt.