信箱不可用.服务器响应为:5.4.1中继访问被拒绝

本文介绍了信箱不可用.服务器响应为:5.4.1中继访问被拒绝的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

当我尝试使用C#代码发送邮件时，出现邮箱不可用.服务器响应为:5.4.1无法为myemail@mydomain中继". 然后，我在www.wormly/test_smtp_server上测试了我的smtp服务器. 在这里输入我的smtp服务器，发件人和收件人的名称.我收到以下消息:

I am getting "Mailbox unavailable. The server response was: 5.4.1 Unable to relay for myemail@mydomain" when I try to send the mail using C# code. Then I tested my smtp server at www.wormly/test_smtp_server. Here when I enter my smtp server, sender and recipient name. I got following message:

MAIL FROM: mymail@mydomain SMTP -> FROM SERVER: 250 2.1.0 Sender OK RCPT TO: anothermail@mydomain SMTP -> FROM SERVER: 550 5.4.1 Relay Access Denied SMTP -> ERROR: RCPT not accepted from server: 550 5.4.1 Relay Access Denied Message sending failed.

推荐答案

您需要与IT部门联系并解决SMTP问题. You need to get with your IT department and fix the SMTP issue.