I'm hosting my website in IXwebhosting, when I just installed J1.5 version after many problems I receive instruction from the company support to add some line of code to ../libraries/phpmailer/phpmail.php file.

Then I could send the registration email to the users, but using the original login module of the Joomla project.

Then I installed CB1.2 and after set up the global configuration, and the Registration tab so only CB can administer users I can't receive the activation email.

Since IXwebhosting only allow PHPmail function for sending emails I also need to explicity add a valid email in SENDMAIL_FROM

My question is which are the files in CB that handles the registration email?

Thanks