A boolean field $return was being passed to SEND_FAILURE_BODY and it was displayed in the email body as shown below. This has been fixed by removing the line 'The error is: %s' and by not passing $return if the mail fails
Testing Instructions
Enable Registrations for user by checking the allow registrations box that can be found in Admin Panel->Users->Options
Make sure you haven't set up an email for the mailer
Frontend -> Under the login panel module, select create a new account
I have tested this item✅ successfully on d9e1f30
This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/33276.