如何使用SMTP通过Exchange Server发送邮件

本文介绍了如何使用SMTP通过Exchange Server发送邮件的处理方法，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

我想在没有

NetworkCredential nc = new Net.NetworkCredential("USERNAME", "PASSWORD").

仅使用Exchange主机(服务器名称)和端口

BY using Only Exchange Host (Server Name) And Port

我正在获取错误对于此代码:邮箱不可用.服务器响应为:5.7.1客户端无权以该发送者的身份发送

Im Getting Error For this code : Mailbox unavailable. The server response was: 5.7.1 Client does not have permissions to send as this sender

protected void SendEmail(object sender, EventArgs e) { SmtpClient smtpClient = new SmtpClient("ExchangeServerName",25); MailMessage message = new MailMessage(); try { MailAddress fromAddress = new MailAddress("bala@OfficeName", "From Me"); MailAddress toAddress = new MailAddress("bala@OfficeName", "To You"); message.From = fromAddress; message.To.Add(toAddress); message.Subject = "Testing!"; message.Body = "This is the body of a sample message"; smtpClient.UseDefaultCredentials = true; System.Net.NetworkCredential nc = CredentialCache.DefaultNetworkCredentials; smtpClient.Credentials = (System.Net.ICredentialsByHost)nc.GetCredential("ExchangeServerName", 25, "Basic"); smtpClient.Send(message); lblText.Text ="Email sent."; } catch (Exception ex) { lblText.Text = "Coudn't send the message!\n " + ex.Message; } }

推荐答案

我已经完成了.有关我的代码的更多详细信息，请使用此链接.

I have done it. For more details about my code use this link.

下面的代码可以正常工作

Below Code is worked Fine with

服务器:Windows Server 2003，Windows Server 2008，Windows Server 2008 R2

Server : Windows Server 2003,Windows Server 2008,Windows Server 2008 R2

IIS:6.0、7.0

IIS : 6.0, 7.0

.Net Frame Wotk:2.0、3.5、4.0

.Net Frame Wotk : 2.0,3.5,4.0

string sMessage; SmtpClient smtpClient = new SmtpClient(); MailMessage message = new MailMessage(); try { //you can provide invalid from address. but to address Should be valil MailAddress fromAddress = new MailAddress("bala@technospine", "BALA"); smtpClient.Host = "Exchange Server Name"; smtpClient.Port = 25; //smtpClient.Port = 587; smtpClient.UseDefaultCredentials = true; message.From = fromAddress; message.To.Add(bala@technospine); //Recipent email message.Subject = _subject; message.Body = _details; message.IsBodyHtml = true; //smtpClient.EnableSsl = true; smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network; smtpClient.Send(message); sMessage = "Email sent."; } catch (Exception ex) { sMessage = "Coudn't send the message!\n " + ex.Message; } lblMailStatus.Text = sMessage;