Hi, I am Hyojung Hwang and working for Korea Telecom. I am using ripe dbase software. I found some problem or starnge things in this code. In syntax.pl, checking 'auth' attribute, --- elsif ($authstr[0] eq "MAIL-FROM") { local($regex) = $value; $regex =~ s/^\s*MAIL\-FROM\s*//; eval "/$regex/;"; if ($@) { return $O_ERROR, "\"$regex\" is not a legal regular expression"; } else { return $O_OK; } } --- why do you eval check ? Isn't this necessary ? Rather, I think, $regex is checked if it is valid email address. How do you think about it ? If it is necessary, please explain why this is needed . Thanks in advance !! -- * _ _ ==GD@: 56@L0m Hq8A@: 1$1b@L4Y. ||_|| ||_| Hwang, Hyojung / jung@jean.kotel.co.kr / 82-2-526-5235 |_| _|_ Internet Team / Multimedia Laboratory / KT R&D Group |_| 137-792, 17 Umyun-Dong, Seocho-Gu, Seoul, Korea