As a practicing adjuster, every now and then I receive a "Unabomber" letter from a marketing person. 

Remember the “Unabomber” who would follow the bombs he mailed to unsuspecting people with a multi-paged single-paragraphed letter to the media?

You didn't have to read it.  You could tell just by looking at the body of the letter that someone unstable wrote it. 
  
The “Unabomber” letter I received was from a service provider introducing her firm to my adjusting company; big, colorful brochure, cards, etc.  I never heard of her firm nor had I received a call from her prior to the letter.  If you want to sell services to claims adjusters, don’t do this. 
  
First, call them or meet them at a claims event. Let them know there's a real "genuine" person (you) that wants to get to know them. 

Once you've made a connection as a "person", then the door to your company's wares will open easier.  

Peter Crosa has been a licensed independent adjuster for more than 35 years, handling insurance claims throughout the United States and Latin America. Since 2000, he has traveled across the country conducting seminars and speeches on the topic of marketing restoration services to the insurance claims industry. He is author of the 2011 Restoration Contractors Guide to Insurance Repair. Visit his website at www.sshca.net or e-mail him your question at peter@sshca.net.