norton 360 and email(earthlink-webmail)

It seems like every time I get a confirmation email from Wal-Mart that a prescription is ready to be picked up my spam filter has a come on offer from a @#$%^&* spam drug company. Is there a way to tunnel my email so these jerk wad companies cannot "see" this confirmation notice sent to my webmail account? Yes, it is in my spam folder and I can just ignore it but it raises my already high bp up a  few notches. 

 

SWN