return false if no servers were loaded

diff --git a/imp/lib/Imap.php b/imp/lib/Imap.php
index 215dce2..6b757ec 100644 (file)
--- a/imp/lib/Imap.php
+++ b/imp/lib/Imap.php
@@ -91,6 +91,9 @@ class IMP_Imap
     {
         try {
             $servers = Horde::loadConfiguration('servers.php', 'servers', 'imp');
+            if ($servers === null) {
+                $servers = false;
+            }
         } catch (Horde_Exception $e) {
             Horde::logMessage($e, __FILE__, __LINE__, PEAR_LOG_ERR);
             return false;