We've rounded up 4 unique methods for writing proposal submission emails. Plus, we've got email samples for each method.In this article, we discuss how to write a business proposal letter and we offer sample letters and templates you can use as a guide. This proposal email template is designed for impressing clients with your achievements, social proof, or positive testimonials. Professional services proposals define the scope and timeline of a project. Get it right and it helps you win more clients. This template lets you tell the story of your prospect (client-to-be) overcoming the obstacle with your help. Learn how to craft an effective business proposal email with our comprehensive guide. We'll show you an example of a followup email to send a client after sending a proposal so you actually get a response! Have you been too busy to get back?