If you have a web site and if you advertise it, or add it some search engines you will receive this kind of spam mails.. ı have a situation as you.. Yesterday ı submitted myingilizce.com some searcgh engines, after that email spams began to fill my mail... there is no chance  to get rid of spams..
You may send them messages for unsubscribing, but some spams doesn't regard your mails..

So you will have to clean your mail when it is full... And it is really abrasive thing to getting spam mails...