Index: branches/version-2/data/class/SC_SendMail.php
===================================================================
--- branches/version-2/data/class/SC_SendMail.php	(revision 17216)
+++ branches/version-2/data/class/SC_SendMail.php	(revision 17491)
@@ -111,5 +111,5 @@
     // 件名の設定
     function setSubject($subject) {
-        $this->subject = mb_encode_mimeheader($subject);
+        $this->subject = mb_encode_mimeheader($subject, "JIS", 'B', "\n");
         $this->subject = str_replace("\x0D\x0A", "\n", $this->subject);
         $this->subject = str_replace("\x0D", "\n", $this->subject);
@@ -154,7 +154,7 @@
                 if(OS_TYPE != 'WIN') {
                     // windowsでは文字化けするので使用しない。
-                    $_name = mb_convert_encoding($_name,"JIS",CHAR_CODE);
+                    // $_name = mb_convert_encoding($_name,"JIS",CHAR_CODE);
                 }
-                $_name = mb_encode_mimeheader($_name);
+                $_name = mb_encode_mimeheader($_name, "JIS", 'B', "\n");
                 $name_address = "\"". $_name . "\"<" . $mail_address . ">";
             } else {