why my filename cannot be decode by using urldecode?

[QThans]

and, why do my filenames contain utf-8" in the filename?

[tonioo]

It looks like the webmail fails to properly decode attachment file names

[QThans]

I think so, so I modified the imapemail.py, using the urllib.parse.unquote to decode then it's ok.

But, I do not why the filename contains the utf-8'', this string is inserted at line 105 of the rfc6266.py