Its always going to be a problem once it starts.
What I use is Mailwasher
mailwasher (there are other progs similar ) which basically show a list of emails waiting to come to you that are on the server 'before' you download them as emails to your pc.
You can delete/bounce/blacklist those you dont want to get to your pc and mark as 'friends' those that you do want to receive etc
Most of my emails I do actually delete/bouce/blacklist but I NEVER get one to my pc that I dont want to receive so NO viruses etc
So I am fairly relaxed about receiving crap because its not been a problem now for the last couple of years. :bannana: