Question about Outlook Express

When I check my emails on here. I can countless emails from different people, but they use the same address. Each one asks for different things and also the same thing. When I click on who sent it to me. It gives me the email address, but when you click on any of those names they all take you to the same site.They claim they know me and seen a picture f my face on a site I used to e a member of (I deleted it as I thought these people had access to it).  Anyway I was wondering is there a way to stop getting these emails? Also by deleting the email address will those users still manage to get photos of me. Is there a way to sort out these people from having my details as I tried writing to them and I get no reply or they fob me off.