Configuring email setting

Your software
My Mautic version is:
My PHP version is:
My Database type and version is:

Your problem
My problem is: email configuration setting testing config is fine but sending email has error message

These errors are showing in the log:

Steps I have tried to fix the problem:

No valid recipients means the server does not recognize the email addresses you want to sent to.
Revise your entire config, paying special attention to the email addresses.