Forgot your password and can't receive email

I entered the appropriate variable based on the documentation, but I was unable to receive the email. However, when I entered gitlab to configure the SMTP configuration under /etc/gitlab/gitlab.rb and updated the configuration with the command gitlab-ctl reconfigure, I received an email. I did this with kubernetes and docker-compose experiments. Now, what do I need to do to pass the relevant configuration to /etc/gitlab/gitlab.rb, I hope I can get your answer, thank you!
SMTP configuration:
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.qq.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "xxx@qq.com"
gitlab_rails['smtp_password'] = "xxx"
gitlab_rails['smtp_domain'] = "qq.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_openssl_verify_mode'] = "peer"
gitlab_rails['smtp_tls'] = true
gitlab_rails['gitlab_email_from'] = "xxx@qq.com"

Start with the SMTP settings shown for /etc/gitlab/gitlab.rb and the gitlab-ctl reconfigure command, then compare them with the Kubernetes and docker-compose configurations mentioned in the report. Done means identifying the relevant configuration path and confirming that password-reset email is delivered.