提示problem talking to server 127.0.0.1:10030: Unknown error: 0错误

以下是邮件系统记录:
warning: problem talking to server 127.0.0.1:10030: Unknown error: 0
451 4.3.5 Server configuration problem

检查记录,提示Quantifier follows nothing in regex; marked by <– HERE in m/* <– HERE .andy
原来是config/sender_whitelist里写错了:”.*”写为”*.”了!