CM Email Tools Pro - Email Log
To log every outgoing e-mail go to Settings->General tab and check "Yes" for Log all outgoing emails. Since then every e-mail will be save in Email Log.
To see logs, navigate to Admin Panel->CM Email Tools Pro->Email Logs.
Below: Example of how the items on a log look like - sent e-mails
Open single Email Log item to see its details.
PHPMailer Settings during sending the email.
PHPMailer data thats logged are related to SMTP debug level in General tab.
Backtrace is standard PHP call stack.
SMTP Connection Log
Log string generated by the SMTP server.