Ebay seller email extractor

I have a service I would like to promote to ebay sellers. I see on alot of ebay sellers contact information at the bottom of the page, one being their email address. Being an ebay seller myself I put my real email address there. Im sure not all post their real or updated email address. Anyway, is there a Good program that can scan the pages on ebay looking for email address? I used one a couple of years ago but it was a joke, only harvested 10 email address. I dont mind paying as long as I know it will do what I want and will work.