I have set up an external SMTP email provider for sending confirmation emails for users upon registration (`verify_emails` set to `True`) and for some reasons, the provider detected the emails as spam…
## Checklist
- [x] I'm reporting a broken site support
- [x] I've verified that I'm running youtube-dl version **2021.12.17**
- [x] I've checked that all provided URLs are alive and pla…