To expand on davorgs accurate '-odq' suggestion here is a bit of code cut out of a script:

$mail_prog = '/usr/sbin/sendmail';

# to enable mail queueing for sendmail set this to '-odq' (set to '' f
+or no queue) 
# *warning* -odq option needs to be configured or messages will never 
+be delivered!
my $odq = '-odq';

open ('MAIL', "|$mail_prog -t -i $odq") or DieNice("Can't open mail pr
+ogram '$mail_prog': $!\n");
print MAIL $message;
close MAIL;
[download]

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print