Fix Drupal 10 Contact Form Email Issue

My Drupal 10.3.1 contact form is malfunctioning as it does not send emails upon submission. I lack the technical knowledge to determine whether the issue lies in configuration, a module, or the core system.

Ideal Skills:
- Proficiency in Drupal 10
- Experience with troubleshooting contact forms
- Understanding of email configuration within Drupal
- Ability to identify and rectify module-related issues
- Knowledge of debugging and error handling in Drupal