Index: userplus.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/userplus/userplus.module,v
retrieving revision 1.8.2.9
diff -u -p -r1.8.2.9 userplus.module
--- userplus.module	17 Mar 2009 18:10:41 -0000	1.8.2.9
+++ userplus.module	29 Jul 2009 08:04:39 -0000
@@ -266,7 +266,7 @@ function userplus_add_users_submit($form
         $bad_edits[] = $u;
         continue;
       }
-      else if (in_array($u['mail'], $mails_added)) {
+      else if (in_array($u['mail'], $mails_added) && !module_exists('sharedemail')) {
         form_set_error('mail'. $error_index++, t('The e-mail address %email, which was entered for user %name, is already taken.', array('%email' => $u['mail'], '%name' => $u['name'])));
         $bad_edits[] = $u;
         continue;