BugFix #0002622: The server Dovecot use by default an UTF-8 and by doing so it cause a wrong re-encoding in UTF-7 when reaching the sieve server (knowing that the foldername in sieve are encoded in UTF-7). Since it is not the case with a Cyrus server, I created a new variable available in the sogo.conf that let you specified the type of encoding you need. By default the encoding is set to UTF-7. ex : SOGoFolderEncoding = 'UTF-7'

SoObjects/SOGo/SOGoSystemDefaults.m

@@ -356,6 +356,12 @@ _injectConfigurationFromFile (NSMutableDictionary *defaultsDict,
   return [self boolForKey: @"WOUseRelativeURLs"];
 }
 
+- (NSString *) folderEncoding
+{
+  return [self stringForKey: @"SOGoFolderEncoding"];
+}
+
+
 - (BOOL) isWebAccessEnabled
 {
   return [self boolForKey: @"SOGoWebAccessEnabled"];