发送邮件报错,以前都是好的,现在突然不行了,要怎么解决?

—————————— 运行开始: 2021-06-23 22:08:54.637 ——————————
“D:/Program Files/ISRPA/Studio-X64/../Python/pythons.exe” -z LUlTRUFSQ0gsMTkyMToyMjowOCojIyowNjo1NDo2MzY6MjMsVzAyc2RL “E:/xxxx\codes\Main.py” -p xxxx
—————————— BeginPython: 2021-06-23 22:08:58,661 ——————————
[2021-06-23 22:08:58,664] [E:/xxxx/codes/Main.py] - [Send_email] [发送邮件] [SNTag:20210314155818020215] []
[2021-06-23 22:08:58,664] [lib/ubpa/imail.pyd] - smtp Send mail:[smtp.qq.com][465]
Traceback (most recent call last):
File “E:/xxxx\codes\Main.py”, line 3760, in
File “E:/xxxx\codes\Main.py”, line 2000, in Send_email
File “imail.py”, line 78, in imail.send_smtp_mail
File “imail.py”, line 69, in imail.send_smtp_mail
File “D:\Program Files\ISRPA\Python\lib\smtplib.py”, line 263, in init
File “D:\Program Files\ISRPA\Python\lib\socket.py”, line 673, in getfqdn
UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xbb in position 4: invalid start byte
运行异常