Re: Insecure $ENV{PATH} while running with -T switch

[Corion]

See perltaint. The best approach is to either avoid invoking the shell by removing the redirection or to explicitly set up $ENV{PATH} to a trusted value. In your case, likely the following will suffice:

$ENV{PATH} = '/bin:/usr/local/bin';

If the external program perl1.pl will be sending mail, maybe you also need to add the directory where the sendmail program lives to the path.