这个邮件服务器需要验证！ [英] This mail server requires authentication !!!

问题描述

我有此代码发送电子邮件

I have this code to send email

MailMessage Mail = new MailMessage （）;
Mail.From = new MailAddress （" [e-mail] " ）;
Mail.To.Add（" [e-mail] " ）;
Mail.Subject = 此 .txtMessageTitle.Text.Trim（）;
Mail.Body = 此 .txtMessageBody.Text.Trim（）;
SmtpClient smtpclient = < font color ="＃0000ff"size = 1> new Smt pClient （" mail.ServerName.com"）;
smtpclient.Credentials = new NetworkCredential （" [e-mail] "：，" xxxxxxxx"）;
smtpclient.Send（Mail）;

MailMessage Mail = new MailMessage();
Mail.From = new MailAddress("[e-mail]");
Mail.To.Add("[e-mail]");
Mail.Subject = this.txtMessageTitle.Text.Trim();
Mail.Body = this.txtMessageBody.Text.Trim();
SmtpClient smtpclient = new SmtpClient("mail.ServerName.com");
smtpclient.Credentials = new NetworkCredential("[e-mail]":, "xxxxxxxx");
smtpclient.Send(Mail);

但是当我尝试发送电子邮件时收到错误消息

But I get Error Message when I try to send the Email

错误的命令序列。服务器响应是：此邮件服务器在尝试发送到非本地电子邮件地址时需要身份验证。请检查您的邮件客户端设置或联系您的管理员以验证是否为此服务器定义了域或地址。

注意：我需要做一些事情，比如在第二个图片代码
https://help.3essentials.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=85

Note : I need to do some thing like in the second picture by code
https://help.3essentials.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=85

并感谢我最好的关于
Fraas

and thanks with my best regarding
Fraas

推荐答案

任何人都可以帮助我：（

can any one help me please :(

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