Fix wordpress email sender

I am looking for someone to fix the issue with my WordPress email sender. Currently, the emails are not being sent at all. This is a critical issue that needs to be resolved as soon as possible to ensure that my website's communication with users is not disrupted.

Specific requirements:
- Expertise in WordPress and email configuration
- Knowledge of the Gmail email provider's guidelines and best practices
- Familiarity with troubleshooting email delivery issues

Responsibilities:
- Identify and fix the root cause of the problem causing emails not to be sent
- Ensure that all emails sent from the website are delivered successfully to recipients' inboxes
- Implement any necessary changes to the website or email settings to resolve the issue

Experience and skills:
- Proven experience in resolving email delivery issues in WordPress
- Proficiency in troubleshooting email problems
- Familiarity with email provider guidelines and best practices, especially Gmail

If you have the necessary skills and experience to fix this issue, please reach out to me with your proposal. Thank you.