The “Looking for Input” Email To Learn From Lost Opportunities

Your file is closed.

[Name],

Thanks for your email. I closed your file. Since it is over, I have a quick question. Why is it you aren’t interested? Was it something I did?

If there is anyway I can improve, let me know. I’m always looking for input.

Thanks for your help,

[Signature]

What this email does well:
Subject line makes it clear that it isn’t a sales email
Lets them know it’s over and that you’ve heard them say “no”
Asks a short, easy-to-answer question