It's all about the relationship first. Many newbie business owners give a proposal to anyone that they think seems interested in their services. That is an easy way to waste your time. Before you submit a proposal, you should have already developed a strong relationship with the buyer and showed the value that you are going to deliver. Your proposal should be a reiteration of that value and relationship and should only be submitted when you know that you are going to make the sale.
The Nameplate and Masthead _ You must have a nameplate including the name of your publication and the date it is published. You should have a masthead too. Both nameplate and masthead are necessary. Your masthead lets people know the name of the author if your newsletter is personal or it says contact information if it's a company newsletter.