A few weeks ago, I went to an industry seminar and got into conversation with a guy who works for a company for whom I would love to work. We spent several hours chatting and agreeing on various business issues and generally got on very well. His company is in the process of moving into an area about which I know quite a lot and we discussed keeping in touch and swapping ideas.
I am in the process of sending him a speculative note (together with some material which backs up my claim to be a subject matter expert) to enquire about the possibility of there being a job for me in this new area.
Would you address the letter to "Dear Martin" or to "Dear Mr S" ?
I am inclined to the former but suspect that the latter would be more "correct".
TIA ?