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'

UI/PreferencesUI/UIxFilterEditor.m

@@ -28,6 +28,7 @@
 #import <SOGo/NSString+Utilities.h>
 #import <SOGo/SOGoUser.h>
 #import <SOGo/SOGoUserDefaults.h>
+#import <SOGo/SOGoSystemDefaults.h>
 
 #import <SOGoUI/UIxComponent.h>
 
@@ -35,6 +36,7 @@
 {
   NSString *filterId;
   NSDictionary *labels;
+  NSString *folderEncoding;
 }
 
 @end
@@ -112,4 +114,9 @@
   return [labels jsonRepresentation];
 }
 
+- (NSString *) folderEncoding
+{
+  return [[SOGoSystemDefaults sharedSystemDefaults] folderEncoding];
+}
+
 @end