Index: trunk/locker/bin/signup-mail
===================================================================
--- trunk/locker/bin/signup-mail	(revision 1119)
+++ trunk/locker/bin/signup-mail	(revision 1901)
@@ -9,5 +9,5 @@
   fs sa /mit/$lname/mail_scripts system:authuser none
   fs sa /mit/$lname/mail_scripts daemon.scripts read
-  signupuser=`echo "$principal" | sed 's/@.*$//'`
+  signupuser=`echo "$principal" | sed 's/[/@].*$//'`
   sed /SCRIPTS_USER/s//$signupuser/ /mit/scripts/bin/procmailrc > /mit/$lname/mail_scripts/procmailrc
   echo "By default, mail sent to $lname@scripts.mit.edu will be forwarded to"