When responding to a rejection email, it's important to be polite and professional. Here's a template you can use as a guide:

Dear [Name],

Thank you for taking the time to inform me of your decision. While I am disappointed that I was not selected for the [position/program], I appreciate the opportunity to have interviewed/ applied for the position.

I would like to take this opportunity to express my continued interest in working with/ applying to [company/program]. If there are any other opportunities in the future, please do not hesitate to reach out to me.

Thank you again for considering me for the position/program.

Best regards,

[Your Name]