发送邮件函数

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net.Mail;

namespace AIMSCommon

{    

/// <summary>    

/// 发送邮件    

/// </summary>    

public class SMTPManager    

{        

/// <summary>        

/// 发送邮件        

/// </summary>        

/// <param name="Dep_Email">发送人、支持发送多个人每个地址用 ; 号隔开</param>        

/// <param name="Mis_Name">任务名称</param>        

/// <param name="Mis_Describe">内容</param>        

/// <param name="File_Path">附件</param>        

/// <returns></returns>        

public static string MailSending(string Dep_Email, string Mis_Name, string Mis_Describe, string File_Path)         {             string MailUser = System.Configuration.ConfigurationManager.AppSettings["MailUser"].ToString();             string MailName = System.Configuration.ConfigurationManager.AppSettings["MailName"].ToString();             string MailHost = System.Configuration.ConfigurationManager.AppSettings["MailHost"].ToString();             string MailPwd = System.Configuration.ConfigurationManager.AppSettings["MailPwd"].ToString();             MailAddress from = new MailAddress(MailUser, MailName); //邮件的发件人             MailMessage mail = new MailMessage();

            //设置邮件的标题             mail.Subject = Mis_Name;//任务名称

            //设置邮件的发件人             //Pass:如果不想显示自己的邮箱地址，这里可以填符合mail格式的任意名称，真正发mail的用户不在这里设定，这个仅仅只做显示用             mail.From = from;

            //设置邮件的收件人             string address = "";             string displayName = "";             /**/             /*  这里这样写是因为可能发给多个联系人，每个地址用 ; 号隔开 一般从地址簿中直接选择联系人的时候格式都会是 ：用户名1 < mail1 >; 用户名2 < mail 2>; 因此就有了下面一段逻辑不太好的代码 如果永远都只需要发给一个收件人那么就简单了 mail.To.Add("收件人mail"); */             string[] mailNames = (Dep_Email + ";").Split(';');             foreach (string name in mailNames)             {                 if (name != string.Empty)                 {                     if (name.IndexOf('<') > 0)                     {                         displayName = name.Substring(0, name.IndexOf('<'));                         address = name.Substring(name.IndexOf('<') + 1).Replace('>', ' ');                     }                     else                     {                         displayName = string.Empty;                         address = name.Substring(name.IndexOf('<') + 1).Replace('>', ' ');                     }                     mail.To.Add(new MailAddress(address, displayName));                 }             }

            //设置邮件的抄送收件人             //这个就简单多了，如果不想快点下岗重要文件还是CC一份给领导比较好             //mail.CC.Add(new MailAddress("Manage@hotmail.com", "尊敬的领导");

            //设置邮件的内容             mail.Body = Mis_Describe;             //设置邮件的格式             mail.BodyEncoding = System.Text.Encoding.UTF8;             mail.IsBodyHtml = true;             //设置邮件的发送级别             mail.Priority = MailPriority.Normal;

            //设置邮件的附件，将在客户端选择的附件先上传到服务器保存一个，然后加入到mail中             if (File_Path != "")             {                 mail.Attachments.Add(new Attachment(File_Path));                 mail.DeliveryNotificationOptions = DeliveryNotificationOptions.OnSuccess;             } SmtpClient client = new SmtpClient();             //设置用于 SMTP 事务的主机的名称，填IP地址也可以了             client.Host = MailHost;             //设置用于 SMTP 事务的端口，默认的是 25             client.Port = 25;             client.UseDefaultCredentials = false;             //这里才是真正的邮箱登陆名和密码， 我的用户名为 MailUser ，我的密码是 MailPwd             client.Credentials = new System.Net.NetworkCredential(MailUser, MailPwd);             client.DeliveryMethod = SmtpDeliveryMethod.Network;

            ////如果发送失败，SMTP 服务器将发送 失败邮件告诉我             mail.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;

            //都定义完了，正式发送了，很是简单吧！             client.Send(mail);             return mail.ToString();         }     } }