$user = ((getpwuid $<)[0]) or die;
}
-$usage2 .= "ADDR may be a local part, implicitly qualified with \@$dom\n"
- if defined $qualdom;
+$usage2 .= defined $dom
+ ? "ADDR may be a local part, implicitly qualified with \@$dom\n"
+ : "ADDR must be a local part (only)\n";
$usage2 .= "REDIRECT is implicitly qualified with \@$qualdom if it has no \@\n"
if defined $qualdom;