Question

我的邮件发送代码如下，已在服务器上托管：

try
    {
        MailMessage msgMail = new MailMessage();

        MailMessage myMessage = new MailMessage();
        myMessage.From = new MailAddress("*****");
        myMessage.To.Add(TextBox1.Text);
        myMessage.Subject = "Subject";
        myMessage.IsBodyHtml = true;

        myMessage.Body = "Message Body";


        SmtpClient mySmtpClient = new SmtpClient();
        System.Net.NetworkCredential myCredential = new System.Net.NetworkCredential("email", "password");
        mySmtpClient.Host = "****";  //Have specified the smtp host name
        mySmtpClient.UseDefaultCredentials = false;
        mySmtpClient.Credentials = myCredential;


        mySmtpClient.Send(myMessage);
        myMessage.Dispose();
    }
    catch (Exception ex)
    {
        Response.Write(ex.ToString());
    }

我继续收到此错误

System.Net.Mail.SmtpFailedRecipientException: Mailbox unavailable. The server response was: #5.1.0 Address rejected abc@yahoo.com at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, SmtpFailedRecipientException& exception) at System.Net.Mail.SmtpClient.Send(MailMessage message) at Mail.Button1_Click(Object sender, EventArgs e) in d:\hosting\9110120\html\FB\Mail.aspx.cs:line 37

我已经尝试了一切。它一直给出同样的错误

我的网站托管在Godaddy服务器上

Answer 1

您的代码似乎很好，显然您可能需要对其进行配置：http://support.godaddy.com/help/article/5444

Answer 2

它失败了，因为电子邮件地址不存在。只需处理异常就可以了。

How to check if an email address exists without sending an email?

Answer 3

我有同样的问题，通过下面一行中的一个小改动来修复它

System.Net.NetworkCredential myCredential = new System.Net.NetworkCredential（＆＃34; email＆＃34;，＆＃34; password＆＃34;）;

验证您的凭据，这对我有用:) ..

从服务器smtp发送邮件时出错？

3 个答案: