ErrorMessage: 'gb2312' codec can't decode byte 0xc1 in position 2: illegal multibyte sequence

[haol666]

Describe the bug
URL: http://127.0.0.1:50253/api/emails/haolin.sd@chinatelecom.cn/inbox?reset=true&batch_size=150
ErrorName: UnicodeDecodeError
ErrorMessage: 'gb2312' codec can't decode byte 0xc1 in position 2: illegal multibyte sequence
Kanmail version: 1.2107081657
Status: 500
Traceback (most recent call last):
File "flask/app.py", line 1813, in full_dispatch_request
File "flask/app.py", line 1799, in dispatch_request
File "kanmail/server/app.py", line 107, in inner
File "kanmail/server/views/email_api.py", line 50, in api_get_account_folder_emails
File "kanmail/server/mail/init.py", line 75, in get_folder_emails
File "kanmail/server/util.py", line 33, in wrapper
File "kanmail/server/mail/folder.py", line 454, in get_emails
File "kanmail/server/mail/folder.py", line 235, in get_email_headers
File "kanmail/server/mail/util.py", line 101, in make_email_headers
File "kanmail/server/mail/util.py", line 49, in make_contact_tuples
File "kanmail/server/mail/util.py", line 49, in
File "kanmail/server/mail/util.py", line 40, in make_contact_tuple
File "kanmail/server/mail/util.py", line 151, in decode_header
UnicodeDecodeError: 'gb2312' codec can't decode byte 0xc1 in position 2: illegal multibyte sequence

[github-actions]

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