Show email errors

How do I view the particular error when trying to send an email.

The email->send() only returns boolean and thus I cannot catch an exception

Any help?

Try setting $threshold (in app/Config/Logger.php) to 8 or 9 and dig through it.
Also you can do custom tests with log_message('notice', $is_your_tested_variable_correct_or_not) if your $threshold  is at 6.

You can see things I made with codeigniter here: itart.pro its not overly impressive as I have very little time to learn.