程序自动发邮件时：535 Error authentication failed

程序自动发邮件时：535 Error authentication failed Authentication failed. Authentication Failed是什么意思 530 login authentication failed 错误怎么解决? authentication Error: Operation failed这是什么意思 error:failed to star watch 发邮件 退信中写着是这个原因：Delivery failed 3 attempts 该怎么处理? 发邮件怎么发 "pc back servers" failed to install with error SYSTEM error win7开启时出现FATAL ERROR:Failed to locate necessary table(s) to “Fatal error:require_once() [function.require]:Failed openin