ZP-448 #comment added check to see if IMAP_EXCLUDE_FOLDERS have a value #time 15m

git-svn-id: https://z-push.org/svn/z-push/trunk@1726 b7dd7b3b-3a3c-0410-9da9-bee62a6cc5b5

src/backend/imap/imap.php

@@ -89,7 +89,7 @@ class BackendIMAP extends BackendDiff {
 
         /* BEGIN fmbiete's contribution r1527, ZP-319 */
         $this->excludedFolders = array();
-        if (defined('IMAP_EXCLUDED_FOLDERS')) {
+        if (defined('IMAP_EXCLUDED_FOLDERS') && strlen(IMAP_EXCLUDED_FOLDERS) > 0) {
             $this->excludedFolders = explode("|", IMAP_EXCLUDED_FOLDERS);
             ZLog::Write(LOGLEVEL_DEBUG, sprintf("BackendIMAP->Logon(): Excluding Folders (%s)", IMAP_EXCLUDED_FOLDERS));
         }