通过我的asp.net mvc应用程序发送邮件时,我遇到了一个间歇性问题。它并不总是发生,但它正在发生很多。Message delivery to the host '68.87.26.147' failed while delivering to the remote domain 'comcast.net' for the following reason: An SMTP protocol error occurred.
Message delivery to the host '207.115.11.16' fail