How to check why I can not send mail via billing module? I create company, client with email address, but email is not send when I try to send reminder or invoice. I enabled debug mode, but no info in logs... Any suggestions what to check?
The billing module uses the mail api from ISPConfig. By default, ISPConfig uses the PHP mail() function, but you can also send by SMTP, see settings under System > Interface > Main config > mail. Take a look at the mail log file of your system to see why the emails can not be delivered on your system.
I found it, I enabled authorization for sending mail, but with wrong credentials. TNX for fast response. You can lock thread.
