code: def decode_message_headers(msg_headers):
      '''
      Decode MIME encoded-word headers
      https://en.wikipedia.org/wiki/MIME#Encoded-Word
  
      :param msg_headers: Dictionary of message headers
      :return: Dictionary of message headers
      '''
  
      headers_to_decode = ['from', 'reply-to', 'subject', 'to']
  
      for item in headers_to_decode:
          return_list = []
          try:
              # decode the header
              decoded_header = pyzmail_decode_mail_header(msg_headers[item][0])
              # add the header to a list as we want to return a list
              return_list.append(decoded_header)
              # replace the item in the dict with a decoded version
              msg_headers[item] = return_list
  
          except KeyError:
              pass
  
      return msg_headerf decode_message_headers(msg_headers):
      '''
      Decode MIME encoded-word headers
      https://en.wikipedia.org/wiki/MIME#Encoded-Word
  
      :param msg_headers: Dictionary of message headers
      :return: Dictionary of message headers
      '''
  
      headers_to_decode = ['from', 'reply-to', 'subject', 'to']
  
      for item in headers_to_decode:
          return_list = []
          try:
              # decode the header
              decoded_header = pyzmail_decode_mail_header(msg_headers[item][0])
              # add the header to a list as we want to return a list
              return_list.append(decoded_header)
              # replace the item in the dict with a decoded version
              msg_headers[item] = return_list
  
          except KeyError:
              pass
  
      return msg_headers
docs: Decode MIME encoded-word headers
      https://en.wikipedia.org/wiki/MIME#Encoded-Word
  
      :param msg_headers: Dictionary of message headers
      :return: Dictionary of message headers