Send mail in Perl

I would like to share with you a small script written in Perl which simply send an email. You can use it in your other scripts when you want to indicate an error while something goes wrong. Of course this small piece of code can be also used in Nagios scripts ;) Only imagination is the limit where this sending email function can be used.

sub sendEmail {
        my ($to, $from, $subject, $message) = @_;
        my $sendmail = '/usr/lib/sendmail';
        open(MAIL, "|$sendmail -oi -t");
        print MAIL "From: $from\n";
        print MAIL "To: $to\n";
        print MAIL "Subject: $subject\n\n";
        print MAIL "$message\n";
        close(MAIL);
}
 
sendEmail("receiveremail\@domain.com", "myemail\@domain.com", "Nagios Error", "Cannot receive NRPE output from host 10.100.5.6");

Reference : 
[1] Pastebin GarciaPL Send email in Perl