asp.net三種發送郵件代碼（stmp,無組件郵件發送)

asp教程.net三種發送郵件代碼（stmp,無組件郵件發送)

public bool sendmails()
{
smtpclient _smtpclient = new smtpclient();
_smtpclient.deliverymethod = smtpdeliverymethod.network;//指定電子郵件發送方式
_smtpclient.host = "ip地址";//指定smtp伺服器
_smtpclient.credentials = new system.net.networkcredential(_straccount, _strpwd);//使用者名稱和密碼

mailmessage _mailmessage = new mailmessage("molizuqiuba@163.com", "11111111111@qq.com");

_mailmessage.subject = "郵件測試";//主題

_mailmessage.body = "郵件發送成功...........";//內容
_mailmessage.bodyencoding = system.text.encoding.utf8;//本文編碼
_mailmessage.isbodyhtml = true;//設定為html格式
_mailmessage.priority = mailpriority.high;//優先順序
try
{
_smtpclient.send(_mailmessage);
response.write("<script>alert('郵件發送成功.............');window.history(-1)</script>");
return true;
}
catch
{
response.write("<script>alert('郵件發送shibai.............');window.history(-1)</script>");
return false;
}
}

%>

需要三個類：mailmessage、smtpclient、networkcredential。

mailmessage、smtpclient 的名稱空間是：

system.net.mail
networkcredential 的名稱空間是：

system.net

mailmessage mail = new mailmessage("發送方郵件地址", "接收方郵件地址");
mail.subjectencoding = encoding.utf8;
mail.subject = "郵件標題";
mail.isbodyhtml = true; //是否允許內容為 html 格式
mail.bodyencoding = encoding.utf8;
mail.body = "<strong>system.net.mail</strong>";
mail.attachments.add(new attachment("e:\foo.txt")); //添加一個附件

smtpclient smtp = new smtpclient("smtp 伺服器位址");
smtp.credentials = new networkcredential("登入名稱", "密碼"); //smtp 驗證
smtp.send(mail);

mail.attachments.dispose(); //郵件發送完畢，釋放對附件的鎖定

<%
//看個無組件發送郵件代碼

using system;
using system.data;
using system.configuration;
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.collections.generic;
using system.net.mail;
using system.text;

namespace ec
{
    /// <summary>
    ///郵件發送
    /// </summary>
    public class mailobj
    {
        private string _strhost = string.empty;
        private string _straccount = string.empty;
        private string _strpwd = string.empty;
        private string _strfrom = string.empty;

        #region 構造與解構函式
        public mailobj()
        {
            _strhost = "smtp.163.com";   //stmp伺服器位址
            _straccount = "aa";       //smtp服務帳號
            _strpwd = "123456";       //smtp服務密碼
            _strfrom = "aa@163.com";  //發送方郵件地址
        }

        /// <summary>
        /// 發送郵件購造函數
        /// </summary>
        /// <param name="strhost">stmp伺服器位址:smtp.163.com</param>
        /// <param name="straccount">smtp服務帳號:liugongxun</param>
        /// <param name="strpwd">smtp服務密碼:www.111cn.net</param>
        /// <param name="strfrom">發送方郵件地址:liugongxun@163.com</param>
        public mailobj(string strhost, string straccount, string strpwd, string strfrom)
        {
            _strhost = strhost;
            _straccount = straccount;
            _strpwd = strpwd;
            _strfrom = strfrom;
        }

        ~mailobj()
        {
            dispose();
        }

        public void dispose()
        {
            gc.suppressfinalize(this);
        }
        #endregion

        #region 發送郵件
        public bool sendmail(string to, string title, string content)
        {
            smtpclient _smtpclient = new smtpclient();
            _smtpclient.deliverymethod = smtpdeliverymethod.network;//指定電子郵件發送方式
            _smtpclient.host = _strhost;//指定smtp伺服器
            _smtpclient.credentials = new system.net.networkcredential(_straccount, _strpwd);//使用者名稱和密碼

            mailmessage _mailmessage = new mailmessage(_strfrom, to);
            _mailmessage.subject = title;//主題
            _mailmessage.body = content;//內容
            _mailmessage.bodyencoding = system.text.encoding.utf8;//本文編碼
            _mailmessage.isbodyhtml = true;//設定為html格式
            _mailmessage.priority = mailpriority.high;//優先順序
            try
            {
                _smtpclient.send(_mailmessage);
                return true;
            }
            catch
            {
                return false;
            }
        }
        #endregion
    }
}

//調用方法

mailobj _mail = new mailobj();
        _mail.sendmail("lxx@qq.com", "測試111cn.net", "<b>內容</b>");
        _mail.dispose();