Traceback (most recent call last): File "utils/mage3.py", line 108, inmsg = email.message_from_string(Imap_Fetch_Data) File "/usr/lib/python3.6/email/__init__.py", line 38, in message_from_string return Parser(*args, **kws).parsestr(s) File "/usr/lib/python3.6/email/parser.py", line 68, in parsestr return self.parse(StringIO(text), headersonly=headersonly) TypeError: initial_value must be str or None, not list