.net发邮件问题，希望成功弄过的教我一下，大家相互学习

邮箱不可用。服务器响应为: not local host live.cn, not a gateway
这个是出现的错误的提示

解决方案 »

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using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Net.Mail;
using System.IO;
using System.Collections.Generic;
using System.Net;/// <summary>
///Class1 的摘要说明
/// </summary>
public class Mail
{
    static string strHost = String.Empty;
    static string strAccount = String.Empty;
    static string strPwd = String.Empty;
    static string strFrom = String.Empty;    /// <summary>
    /// 发送邮件
    /// </summary>
    /// <param name="to">接收方邮件地址</param>
    /// <param name="title">邮件标题</param>
    /// <param name="content">邮件正文内容</param>
    public static bool sendmail(string to, string title, string content)
    {
        strHost = "mail.shjry.com";   //STMP服务器地址
        strAccount = "shjry";       //SMTP服务帐号
        strPwd = "340827";       //SMTP服务密码
        strFrom = "[email protected]"; //发送方邮件地址        SmtpClient _smtpClient = new SmtpClient();
        _smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式
        _smtpClient.Host = strHost; ;//指定SMTP服务器
        _smtpClient.UseDefaultCredentials = true;
        _smtpClient.Credentials = new System.Net.NetworkCredential(strAccount, strPwd);//用户名和密码        //如果上面的不能成功可以将发送方式该为下面这一句
               MailMessage _mailMessage = new MailMessage(strFrom, to);
        _mailMessage.Subject = title;//主题
        _mailMessage.Body = content;//内容
        _mailMessage.BodyEncoding = System.Text.Encoding.UTF8;//正文编码
        _mailMessage.IsBodyHtml = true;//设置为HTML格式
        _mailMessage.Priority = MailPriority.High;//优先级        try
        {
            _smtpClient.Send(_mailMessage);
            return true;
        }
        catch(Exception ex)
        {
            throw new Exception(ex.Message);
        }
    }
}
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Net.Mail;
using System.Net;public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {    }    protected void emailBtn_onclick(object sender, EventArgs e)
    {
        Mail.sendmail("[email protected]", "12", "调试内容");
        Response.Write("<script>alert('发送成功');</script>");

    }
}
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      <asp:Button ID="emailBtn" Text="发送邮件" runat="server" OnClick="emailBtn_onclick" />

    </div>
    </form>
</body>
</html>
strHost = "mail.shjry.com";   这个问题  是你自己的邮件服务器吗？
问题是strHost="mail.shjry.com" 是我自己的，如果把strFrom 改成 [email protected]  把to 改成[email protected]能发送成功，但这样没有意思啊
如果我用smtp.163.com,或者smtp.qq.com都不可以的
好像是SmtpClient _smtpClient = new SmtpClient();
        _smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式
        _smtpClient.Host = strHost; ;//指定SMTP服务器我记得复制时IP那种的
  strHost = "mail.shjry.com";   //STMP服务器地址
        strAccount = "shjry";       //SMTP服务帐号 ···据我所知道，用户名要带上邮箱后缀的！
        strPwd = "340827";       //SMTP服务密码
        strFrom = "[email protected]"; //发送方邮件地址
例如
SmtpClient client = new SmtpClient("58.214.9.54");
strAccount = "shjry";      写邮箱全称试试