diff --git a/bbs/register_form_update.php b/bbs/register_form_update.php
index 838edac33..03b77cbc1 100644
--- a/bbs/register_form_update.php
+++ b/bbs/register_form_update.php
@@ -67,6 +67,8 @@ if ($w == '' || $w == 'u') {
     if ($msg = reserve_mb_nick($mb_nick))   alert($msg);
     if ($msg = valid_mb_name($mb_name))     alert($msg);
     if ($msg = valid_mb_nick($mb_nick))     alert($msg);
+    if ($msg = valid_mb_email($mb_email))   alert($msg);
+    if ($msg = prohibit_mb_email($mb_email))alert($msg);
 
     if ($w=='') {
         if ($msg = exist_mb_id($mb_id))     alert($msg);
diff --git a/lib/register.lib.php b/lib/register.lib.php
index fb236c897..1b39a9398 100644
--- a/lib/register.lib.php
+++ b/lib/register.lib.php
@@ -104,6 +104,19 @@ function valid_mb_email($reg_mb_email)
         return "";
 }
 
+// 금지 메일 도메인 검사
+function prohibit_mb_email($reg_mb_email)
+{
+    global $config;
+    list($id, $domain) = explode("@", $reg_mb_email);
+    $email_domains = explode("\n", trim($config['cf_prohibit_email']));
+    for ($i=0; $i<count($email_domains); $i++) {
+        if (strtolower($domain) == strtolower($email_domains[$i]))
+            return "$domain 메일은 사용할 수 없습니다.";
+    }
+    return "";
+}
+
 function exist_mb_email($reg_mb_email, $reg_mb_id)
 {
     global $g4;
diff --git a/skin/member/neo/ajax_mb_email_check.php b/skin/member/neo/ajax_mb_email_check.php
index 9d255f106..9f2117d6c 100644
--- a/skin/member/neo/ajax_mb_email_check.php
+++ b/skin/member/neo/ajax_mb_email_check.php
@@ -7,5 +7,6 @@ $mb_id    = escape_trim($_POST['reg_mb_id']);
 
 if ($msg = empty_mb_email($mb_email)) die($msg);
 if ($msg = valid_mb_email($mb_email)) die($msg);
+if ($msg = prohibit_mb_email($mb_email)) die($msg);
 if ($msg = exist_mb_email($mb_email, $mb_id)) die($msg);
 ?>
\ No newline at end of file
diff --git a/test.php b/test.php
index 07a8925a1..50b8372dc 100644
--- a/test.php
+++ b/test.php
@@ -1,6 +1,19 @@
 <?
-define('sss', 1);
-if (defined('ss')) {
-    echo xxx(1);
+include_once('./_common.php');
+
+// 금지 메일 도메인 검사
+function prohibit_mb_email($reg_mb_email)
+{
+    global $config;
+    list($id, $domain) = explode("@", $reg_mb_email);
+    $email_domains = explode("\n", trim($config['cf_prohibit_email']));
+    for ($i=0; $i<count($email_domains); $i++) {
+        if (strtolower($domain) == strtolower($email_domains[$i]))
+            return $domain;
+    }
+    return "";
 }
+
+echo prohibit_mb_email("kagla@naver.com");
+echo prohibit_mb_email("kagla@hanmail.net");
 ?>
\ No newline at end of file