--- INSTALL	2002/11/19 09:06:16	1.1
+++ INSTALL	2002/11/19 12:16:02	1.3
@@ -11,3 +11,11 @@
 
 3. edit mail2sap.xml to modify configuration options as appropriate
 
+4. make mail2sap.pl setgid to some group that has write permission in
+   directory which is defined as <msgdir> and <outdir> in mail2sap.xml
+
+   If group id is 601, you can use following:
+
+	# chgrp 601 mail2sap.pl
+	# chmod 2755 mail2sap.pl
+