Traceback (most recent call last):
File "C:\veighna_studio\lib\threading.py", line 1016, in _bootstrap_inner
self.run()
File "C:\veighna_studio\lib\threading.py", line 953, in run
self._target(*self._args, **self._kwargs)
File "C:\veighna_studio\lib\site-packages\vnpy\trader\engine.py", line 655, in run
smtp.login(
File "C:\veighna_studio\lib\smtplib.py", line 739, in login
(code, resp) = self.auth(
File "C:\veighna_studio\lib\smtplib.py", line 642, in auth
(code, resp) = self.docmd("AUTH", mechanism + " " + response)
File "C:\veighna_studio\lib\smtplib.py", line 432, in docmd
return self.getreply()
File "C:\veighna_studio\lib\smtplib.py", line 405, in getreply
raise SMTPServerDisconnected("Connection unexpectedly closed")
smtplib.SMTPServerDisconnected: Connection unexpectedly closed

全局配置里，填写了错误的邮箱地址信息，在VeighNa Trader主界面的【配置】对话框中，删除email开头的字段内容，保存退出后重启试试。