smtp.live.com - 邮箱不可用。服务器响应是：5.7.3请求的操作中止;用户未认证 [英] smtp.live.com - mailbox unavailable. The server response was: 5.7.3 requested action aborted; user not authenticated

问题描述

我已经在stackoverflow上看过其他答案。但是没有一个解决方案适用于我。

我正在通过live.com发送电子邮件，但无法发送。

错误信息：

 邮箱不可用。服务器响应是：5.7.3请求的操作中止; 
用户未认证
  

代码：

  MailMessage mail = new MailMessage（）; 
 mail.From = new MailAddress（[e-mail]）; 
 mail.To.Add（[e-mail]）; 
 mail.Subject =hello; 
 mail.Body =awefkljj kawefl; 
 mail.IsBodyHtml = false; 
 
 SmtpClient smtp = new SmtpClient（smtp.live.com，587）; 
 smtp.EnableSsl = true; 
 smtp.Credentials = new NetworkCredential（[e-mail]，密码）; 
 smtp.Send（mail）; 
  

您是否可以使用上述代码发送电子邮件？

它在去年之前工作，但现在不再工作。

发生了什么变化？

解决方案

我遇到一个问题，我无法使用特定主机的smtp.live.com SMTP服务器发送电子邮件 - 特别是Azure主机。在我的情况下，SMTP尝试是从以前从未登录过的主机，所以尝试被阻止与5.7.3错误：

邮箱不可用。服务器响应是：5.7.3请求的操作中止;用户未认证

解决方案是浏览到帐户设置，在最近的活动中找到SMTP请求，并选择这是我：

I have read other answers on the stackoverflow. but none of the solutions work for me.

I'm trying to send email through live.com, but unable to it.

The error message:

mailbox unavailable. The server response was: 5.7.3 requested action aborted;
user not authenticated

The code:

MailMessage mail = new MailMessage();
mail.From = new MailAddress("[e-mail]");
mail.To.Add("[e-mail]");
mail.Subject = "hello";
mail.Body = "awefkljj kawefl";
mail.IsBodyHtml = false;

SmtpClient smtp = new SmtpClient("smtp.live.com", 587);
smtp.EnableSsl = true;
smtp.Credentials = new NetworkCredential("[e-mail]", "password");
smtp.Send(mail);

Are you able to send the email by using above code?

It works before, last year, but it is no more working now.

What had been changed?

解决方案

I ran into an issue where I was unable to send emails using the smtp.live.com SMTP server from certain hosts -- particulary Azure hosts. In my case, the SMTP attempt was from a host that I had never used to sign-in previously, so the attempt was blocked with the 5.7.3 error:

Mailbox unavailable. The server response was: 5.7.3 requested action aborted; user not authenticated

The solution was to browse to the account settings, locate the SMTP request in its recent activity, and select "This was me":

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