diff --git a/README.rst b/README.rst
index 70525d4..979e4eb 100644
--- a/README.rst
+++ b/README.rst
@@ -258,3 +258,4 @@ Thanks to:
 * `Mitrich3000 <https://github.com/Mitrich3000>`_
 * `audemed44 <https://github.com/audemed44>`_
 * `mkalioby <https://github.com/mkalioby>`_
+* `atlas0fd00m <https://github.com/atlas0fd00m>`_
diff --git a/imap_tools/folder.py b/imap_tools/folder.py
index f80ba10..2a5bfe8 100644
--- a/imap_tools/folder.py
+++ b/imap_tools/folder.py
@@ -104,15 +104,16 @@ def list(self, folder: str or bytes = '', search_args: str = '*', subscribed_onl
         """
         folder_item_re = re.compile(r'\((?P<flags>[\S ]*)\) "(?P<delim>[\S ]+)" (?P<name>.+)')
         command = 'LSUB' if subscribed_only else 'LIST'
-        typ, data = self.mailbox.box._simple_command(command, self._encode_folder(folder), search_args)
+        typ, data = self.mailbox.box._simple_command(
+            command, self._encode_folder(folder), self._encode_folder(search_args))
         typ, data = self.mailbox.box._untagged_response(typ, data, command)
         result = list()
         for folder_item in data:
             if not folder_item:
                 continue
             folder_match = re.search(folder_item_re, imap_utf7.decode(folder_item))
-            folder = folder_match.groupdict()
-            if folder['name'].startswith('"') and folder['name'].endswith('"'):
-                folder['name'] = folder['name'][1:len(folder['name']) - 1]
-            result.append(folder)
+            folder_dict = folder_match.groupdict()
+            if folder_dict['name'].startswith('"') and folder_dict['name'].endswith('"'):
+                folder_dict['name'] = folder_dict['name'][1:-1]
+            result.append(folder_dict)
         return result
diff --git a/imap_tools/imap_utf7.py b/imap_tools/imap_utf7.py
index 2fc9c7b..b3e8809 100644
--- a/imap_tools/imap_utf7.py
+++ b/imap_tools/imap_utf7.py
@@ -12,8 +12,8 @@
 
 # ENCODING
 # --------
-def _modified_base64(s):
-    return binascii.b2a_base64(s.encode('utf-16be')).rstrip(b'\n=').replace(b'/', b',')
+def _modified_base64(value: str):
+    return binascii.b2a_base64(value.encode('utf-16be')).rstrip(b'\n=').replace(b'/', b',')
 
 
 def _do_b64(_in, r):
@@ -22,45 +22,45 @@ def _do_b64(_in, r):
     del _in[:]
 
 
-def encode(s: str) -> bytes:
+def encode(value: str) -> bytes:
     res = []
     _in = []
-    for c in s:
-        ord_c = ord(c)
+    for char in value:
+        ord_c = ord(char)
         if 0x20 <= ord_c <= 0x25 or 0x27 <= ord_c <= 0x7e:
             _do_b64(_in, res)
-            res.append(c.encode())
-        elif c == '&':
+            res.append(char.encode())
+        elif char == '&':
             _do_b64(_in, res)
             res.append(b'&-')
         else:
-            _in.append(c)
+            _in.append(char)
     _do_b64(_in, res)
     return b''.join(res)
 
 
 # DECODING
 # --------
-def _modified_unbase64(s):
-    return binascii.a2b_base64(s.replace(b',', b'/') + b'===').decode('utf-16be')
+def _modified_unbase64(value: bytearray):
+    return binascii.a2b_base64(value.replace(b',', b'/') + b'===').decode('utf-16be')
 
 
-def decode(s: bytes) -> str:
+def decode(value: bytes) -> str:
     res = []
     decode_arr = bytearray()
-    for c in s:
-        if c == ord('&') and not decode_arr:
+    for char in value:
+        if char == ord('&') and not decode_arr:
             decode_arr.append(ord('&'))
-        elif c == ord('-') and decode_arr:
+        elif char == ord('-') and decode_arr:
             if len(decode_arr) == 1:
                 res.append('&')
             else:
                 res.append(_modified_unbase64(decode_arr[1:]))
             decode_arr = bytearray()
         elif decode_arr:
-            decode_arr.append(c)
+            decode_arr.append(char)
         else:
-            res.append(chr(c))
+            res.append(chr(char))
     if decode_arr:
         res.append(_modified_unbase64(decode_arr[1:]))
     return ''.join(res)
diff --git a/release_notes.rst b/release_notes.rst
index b9b9bf2..46eb120 100644
--- a/release_notes.rst
+++ b/release_notes.rst
@@ -1,3 +1,7 @@
+0.14.1
+======
+* Fixed bug on folders names with space in folder.MailBoxFolderManager.exists/list
+
 0.14.0
 ======
 * Improved parse logic for message.MailMessage.flags
diff --git a/setup.py b/setup.py
index 5f4709a..b8aa49e 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name='imap_tools',
-    version='0.14.0',
+    version='0.14.1',
     packages=setuptools.find_packages(),
     url='https://github.com/ikvk/imap_tools',
     license='Apache-2.0',
diff --git a/todo.txt b/todo.txt
index 364fdd0..d6225d9 100644
--- a/todo.txt
+++ b/todo.txt
@@ -3,3 +3,5 @@ try to imitate long poll by NOOP
 check https://docs.python.org/release/3.8.1/library/email.utils.html
 
 check possibility to implement SOCKS without/with dependencies
+
+folder.list fails on names with \\ "" chars