Sample Chapter Proposal Rejection Email

Dear Professor ________,

Thank you for submitting a chapter proposal for the upcoming book **** Insert book title here ****.

After reviewing your proposal, I believe that, although your proposal is interesting, it unfortunately does not fall within the aim and scope of this publication. I appreciate your interest in this project, and I look forward to working with you on other projects. If you have any questions regarding this book, please do not hesitate to contact me.

Best wishes,

Your Name
Editor
****Book Title****