Help me... need to be secure

My computer is having much for common attacks from emails and else where. Mainly email is a very big issue.

WHat are the BEST FREE software out there for:
-scanning all incoming emails (i use outlook)
-checking for open ports and blocking them

The scanning email for me is very very important, what is the best email scanning program, also it would be very helpful if it had the option to remove viruses from the email rather than delete the email.

thanks! btw, i use bitdender, zonealarm and AVG. however, AVG doesn’t work well. I did a test and it almost passed all viruses!