username should not be empty

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@11470 7612ce4b-ef26-0410-bec9-ea0150e637f0

diff --git a/functions/auth.php b/functions/auth.php
index 7de4fe94abc9d84603f34d1249cd845efb0333dd..2f85f7d325e358b58053a9ee00b90350815b4c44 100644 (file)
--- a/functions/auth.php
+++ b/functions/auth.php
@@ -264,7 +264,8 @@ function get_smtp_user(&$user, &$pass) {
     if ($smtp_auth_mech == 'none') {
         $user = '';
         $pass = '';
-    } elseif ( isset($smtp_sitewide_user) && isset($smtp_sitewide_pass) ) {
+    } elseif ( isset($smtp_sitewide_user) && isset($smtp_sitewide_pass) &&
+               !empty($smtp_sitewide_user)) {
         $user = $smtp_sitewide_user;
         $pass = $smtp_sitewide_pass;
     } else {