I know sendmail is not installed with Plesk for windows, so what should my customers use to send mail via Perl scripts is there is no path to sendmail?
I usualy put sendmail folder and files in folder /cgi-bin on every hosting that needs sendmail - than set write permission on files debug.log and error.log to IUSR_hosting_acc and in perl files path to sendmail I set "sendmail/sendmail.exe" and works...