use CGI::Carp;
look up the docs shipping with your perl installation as CGI.pm is a standard module and comes along with CGI::Carp;

Have a nice day
All decision is left to your taste
Update
But you could also:
use CGI::Debug;

In reply to Re: Error reporting from web/mail scripts. by little
in thread Error reporting from web/mail scripts. by tomazos

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