通过 asp.net 网页发送电子邮件答案

【问题标题】：Sending email via asp.net webpage通过 asp.net 网页发送电子邮件
【发布时间】：2013-06-24 16:20:44
【问题描述】：

我特地做了这个教程作为基础：http://www.codeproject.com/Tips/371417/Send-Mail-Contact-Form-using-ASP-NET-and-Csharp

我成功调试了错误，但它似乎不起作用...请帮助...

预览：

代码隐藏：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;

公共部分类 Default2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) {

}
protected void SendMail()
{
    // Gmail Address from where you send the mail
    var fromAddress = "ml27.santos@gmail.com";
    // any address where the email will be sending
    var toAddress = YourEmail.Text.ToString();
    //Password of your gmail address
    const string fromPassword = "Password";
    // Passing the values and make a email formate to display
    string subject = YourSubject.Text.ToString();
    string body = "From: " + YourName.Text + "\n";
    body += "Email: " + YourEmail.Text + "\n";
    body += "Subject: " + YourSubject.Text + "\n";
    body += "Question: \n" + Comments.Text + "\n";
    // smtp settings
    var smtp = new System.Net.Mail.SmtpClient();
    {
        smtp.Host = "smtp.gmail.com";
        smtp.Port = 587;
        smtp.EnableSsl = true;
        smtp.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
        smtp.Credentials = new NetworkCredential(fromAddress, fromPassword);
        smtp.Timeout = 20000;
    }
    // Passing values to smtp object
    smtp.Send(fromAddress, toAddress, subject, body);
}

protected void Button1_Click(object sender, EventArgs e)
{
    try
    {
        //here on button click what will done 
        SendMail();
        DisplayMessage.Text = "Message sent!";
        DisplayMessage.Visible = true;
        YourSubject.Text = "";
        YourEmail.Text = "";
        YourName.Text = "";
        Comments.Text = "";
    }
    catch (Exception) { }
}}

【问题讨论】：

您需要提供更多关于 WHAT 不起作用以及遇到的错误的详细信息
发生了哪些错误以及发生在哪里..
没有邮件发送...
请看How to use gmail SMTP in ASP.NET form

标签： asp.net web

【解决方案1】：

我认为 Gmail SMTP 端口应该是 465，而不是 587。

https://support.google.com/mail/troubleshooter/1668960?hl=en&from=75726&rd=1#ts=1665018,1665142

【讨论】：

我用587成功了，但是是谷歌... var client = new SmtpClient("smtp.gmail.com", 587) { Credentials = new NetworkCredential("acct@gmail.com", "pw"), EnableSsl = true };
登录您的帐户并检查已发送文件夹。如果smtp.Send方法没有抛出异常，说明连接正确。

【解决方案2】：

您是否尝试过评论那篇文章/联系作者？

我猜这里有两件事：

A.你没有在 catch 块中做任何事情。您应该考虑在 catch 块中关注

catch(Exception ex){
DisplayMessage.Text = ex.Message;
DisplayMessage.Visible = true;
}

B.检查您使用的 gmail 帐户是否启用了 pop3/imap 的 smtp。

【讨论】：

【解决方案3】：

试试这个

    protected void SendMail()
    {
        // any address where the email will be sending
        var toAddress = YourEmail.Text.ToString();
        //Password of your gmail address
        const string fromPassword = "Password";
        // Passing the values and make a email formate to display
        string subject = YourSubject.Text.ToString();
        string body = "From: " + YourName.Text + "\n";
        body += "Email: " + YourEmail.Text + "\n";
        body += "Subject: " + YourSubject.Text + "\n";
        body += "Question: \n" + Comments.Text + "\n";

        SmtpClient smtpClient = new SmtpClient();
        MailMessage message = new MailMessage();
        MailAddress fromAddress = new MailAddress("ml27.santos@gmail.com");
        smtpClient.Host = "smtp.gmail.com";
        smtpClient.Port = 587;
        smtpClient.UseDefaultCredentials = false;
        smtpClient.EnableSsl = true;
        smtpClient.Credentials = new System.Net.NetworkCredential("ml27.santos@gmail.com", fromPassword);
        message.From = fromAddress;
        message.To.Add(toAddress);
        message.Subject = subject;
        message.Priority = MailPriority.High;
        message.Body = body;
        message.IsBodyHtml = true;
        smtpClient.Send(message);
    }

【讨论】：