注意（要确定服务器的SMTP Server 的端口号）

 

前端：

                
      
               
        
         
smtp:
                     
            
                
                        
         
from addr:
                     
            
                
                
         
to addr:
                     
            
                
                
         
title:
                     
            
                
                
         
content:
                     
                        
                
                
                     
                            
                
           
      

 

后台： ashx

 

<%@ WebHandler Language="C#" class="Handler" %>using System;using System.Web;using Utility;public class Handler : IHttpHandler {        public void ProcessRequest (HttpContext context)    {        context.Response.ContentType = "text/plain";        string smtp = HttpContext.Current.Request.Form["smtp"].ToString();        string title = HttpContext.Current.Request.Form["title"].ToString();        string content = HttpContext.Current.Request.Form["content"].ToString();        string from = HttpContext.Current.Request.Form["from"].ToString();        string to = HttpContext.Current.Request.Form["to"].ToString();                        try        {            EmailClient emailClient = new EmailClient(smtp);// localhost::25            emailClient.SendEmail(from, to, title, content);            System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();            System.Collections.Generic.Dictionary
      
        d = new System.Collections.Generic.Dictionary
       
        ();            d.Add("message", "success");            d.Add("success", true);            context.Response.Write(jss.Serialize(d));        }        catch (Exception ex)        {            System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();            System.Collections.Generic.Dictionary
        
          d = new System.Collections.Generic.Dictionary
         
          ();            d.Add("message", ex.Message);            d.Add("success", true);            context.Response.Write(jss.Serialize(d));        }                        }     public bool IsReusable {        get {            return false;        }    }}
         
        
       
      

 

 

 

Smtp类：

 

public class EmailClient    {        private string smtpServer;        private string senderAddress;               public EmailClient(string smtpServer)        {            this.smtpServer = smtpServer;            this.senderAddress = string.Empty;        } 　　public void SendEmail(string fromAddress, string toAddress, string subject, string messageBody)        {            SmtpClient smtp = new SmtpClient(smtpServer);            MailMessage email = new MailMessage();            email.From = new MailAddress(fromAddress);            email.To.Add(toAddress);            email.Subject = subject;            email.Body = messageBody;            smtp.Send(email);        }}