Unsoliceted email Spam, How to Stop ?

Is there any way to automatically block/delete emails that contain the word LINKEDIN from even going into my junk mail folder? I'm getting 1 to 2 spam messages a day. All are from different senders. Each email has a different address. Each states I have a message from someone or someone is trying to contact me, etc. They are all sent under the LINKEDIN banner. I have added them all to my block list, however the emails keep on coming in under different names and email addresses. 

An internet search reveals that many people are complaining about the same thing and LINKEDIN is unresponsive. LINKEDIN is supposed to be a professional business organization where members of various business can stay in touch. I unsubscribed from it quite awhile ago as it was worthless. The unwanted emails [spam] keeps on coming.

Any help is appreciated.

Thanks.