Following error is seen when parsing server responses for sent mail:
2020-10-12 08:19:11 WARNING: Can't parse FETCH response, we awaited string: b' UID 26855)'
2020-10-12 08:19:11 WARNING: savemessage: Searching mails for new Message-ID failed. Could not determine new UID on Sent.
The comparison with 'type("")' means comparing with 'string' type in Python
3, but the left-hand side is a bytes object.
In case a tuple was received (first case in the code), the input is already
decoded from bytes to strings, but in case a single input was received it
was not.
Note that the comparison with 'type("")' is a bit odd, a more logical way
seems to be:
if isinstance(item, bytes)
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>