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c# - SMTP 服务器需要安全连接或客户端未通过身份验证。服务器响应为 : 5. 5.1 需要身份验证。

转载 作者:太空狗 更新时间:2023-10-29 20:10:58 26 4
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Possible Duplicate:
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required

我在运行此代码时遇到问题,然后出现错误“SMTP 服务器需要安全连接或客户端未通过身份验证。服务器响应为:5.5.1 需要身份验证。”

我的代码是:

代码

protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{

MailMessage mail = new MailMessage();
mail.To.Add("info@msslindia.com");
mail.From = new MailAddress("info@msslindia.com");
string body = "<table><tr><td>Company Name:</td><td>" + txt_cname.Text + "</td></tr><tr><td>Address With No.:</td><td>" + txt_addwithno.Text + "</td></tr><tr><td>Contact Person:</td><td>" + txt_conperson.Text + "</td></tr><tr><td>Email Id</td><td>" + txt_email.Text + "</td></tr><tr><td>Description</td><td>" + txt_description.Text + "</td></tr></table>";
mail.Body = body;
mail.IsBodyHtml = true;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.Port = 587;

smtp.Credentials = new System.Net.NetworkCredential("info@msslindia.com", "12345");
smtp.EnableSsl = true;
smtp.Send(mail);


txt_cname.Focus();
txt_cname.Text = "";
txt_addwithno.Text = "";
txt_conperson.Text = "";
txt_email.Text = "";
txt_description.Text = "";

}

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