That's your problem. You're using the number one SPAMed email client out there. That's weird that you're getting emails that are not addressed to you specifically. I've never had that.
Okay, but those are also addressed to you. Maybe in a BCC field that you can't see, but your address is in there somewhere or it's through an aliased mailing list somehow. My point is that using the actual address is not really a good way of determining whether or not the message is real. You'd have to set up filters that would check the To, CC, and BCC fields for your address, but that would still not let any mailing lists you're subscribed to get messages through.
The best way of avoiding spam is to use an ISP or e-mail client (or both) that have spam-filtering tools built into the software.
Thanks for the reply. As a matter of intressed I get at least 100/120 spam emails a day that are not addressed to me, something in the name part of the address is similer to my propper address. This is the amount of stuff that makes it through the spam filters.