Fix WordPress Registration Email Issue

I'm looking for an experienced WordPress developer to fix issues with my user registration and password recovery emails. Currently, users do not receive emails to complete their registration or to recover their passwords.

Requirements:
- Expertise in WordPress and SMTP Mailer
- Experience troubleshooting email issues with registration and password recovery
- Familiarity with user registration plugins

Ideal Skills:
- WordPress development
- SMTP configuration
- Plugin integration and troubleshooting
It is not necessary to keep SMTP, but the user registration and password recovery issues must be resolved.

Please ensure that users can reliably receive registration and password recovery emails.