on a YouTube video I saw a commercial real estate agent who said that he regularly contacts lenders by either email or letters and the purpose is to try to get prospects such as buyers and sellers.

 I want to know is how is this done how do I approach a lender through email or letter and what should I say

I'm just not sure if I approach a lender directly and telling them I'm looking for prospects that may not sound right is there a better way to introduce myself