config文件中
<system.net>
<mailSettings>
<smtp from="admin@your-domain.com">
<network host="your-mail-server-name"
userName="your-user-name"
password="your-password" />
</smtp>
</mailSettings>
</system.net>
其实这里最好还是做成表，放excel表里面，这样就可以支持好多了。当然，密码如果用明文是不安全的，最好采用加密方式储存，要是简单点，自己写个加密小算法也可以，呵呵。就说这么多，没技术含量，外加剽窃，嘿嘿！！！
作者是yyw‘s.
-------------------------------
using System;
using System.Net;
using System.Net.Mail;
using System.Net.Mime;
using System.Threading;
using System.Net.Sockets;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Net.Configuration;
using System.Configuration;
namespace Mailer.Components
{
邮件发送类#region 邮件发送类
public class SMTP
{
Fields#region Fields
private string _mailFrom;
private string _displayName;
private SmtpClient smtpMail;
#endregion
Properties#region Properties
public string MailFrom
{
get { return _mailFrom; }
set { _mailFrom = value; }
}
public string DisplayName
{
get { return _displayName; }
set { _displayName = value; }
}
#endregion
Constructors#region Constructors
public SMTP()
{
System.Configuration.Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~/");
MailSettingsSectionGroup mailSettings = (MailSettingsSectionGroup)config.GetSectionGroup("system.net/mailSettings");
string mailFrom = mailSettings.Smtp.From;
string smtpServer = mailSettings.Smtp.Network.Host;
int smtpPort = mailSettings.Smtp.Network.Port;
string smtpUsername = mailSettings.Smtp.Network.UserName;
string password = mailSettings.Smtp.Network.Password;
smtpMail = new SmtpClient(smtpServer, smtpPort);
smtpMail.Credentials = new NetworkCredential(smtpUsername, password);
this._mailFrom = mailFrom;
this._displayName = smtpUsername;
}
public SMTP(string smtpServer, string userName, string password)
: this(null, smtpServer, userName, password)
{
}
/**////
/// 邮件发送类
/// ///
发件人地址
///
SMTP 服务器
///
用户名
///
密码
public SMTP(string mailFrom, string smtpServer, string userName, string password)
: this(mailFrom, mailFrom, smtpServer, userName, password)
{
}
/**////
/// 邮件发送类
/// ///
发件人地址
///
显示的名称
///
SMTP 服务器
///
用户名
///
密码
public SMTP(string mailFrom, string displayName, string smtpServer, string userName, string password)
: this(mailFrom, displayName, smtpServer, 25, userName, password, false)
{
}
public SMTP(string mailFrom, string displayName, string smtpServer, int smtpPort, string userName, string password, bool smtpSsl)
{
this._mailFrom = mailFrom;
this._displayName = displayName;
smtpMail = new SmtpClient(smtpServer, smtpPort);
smtpMail.Credentials = new NetworkCredential(userName, password);
smtpMail.EnableSsl = smtpSsl;
}
#endregion
Methods#region Methods
Public#region Public
public Boolean Send(string mailTo, string mailSubject, string mailBody, MailPriority priority, bool isBodyHtml)
{
string[] mailTos = new string[] { mailTo };
string[] attachments = null;
System.Text.Encoding bodyEncoding = System.Text.Encoding.Default;
return Send(mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public Boolean Send(string mailTo, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
string[] mailTos = new string[] { mailTo };
return Send(mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public Boolean Send(string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
return Send(this._mailFrom, this._displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
/**////
/// 同步发送邮件
/// ///
public Boolean Send(string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
return SendMail(false, null, mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public void SendAsync(object userState, string mailTo, string mailSubject, string mailBody, MailPriority priority, bool isBodyHtml)
{
string[] mailTos = new string[] { mailTo };
string[] attachments = null;
System.Text.Encoding bodyEncoding = System.Text.Encoding.Default;
SendAsync(userState, mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public void SendAsync(object userState, string mailTo, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
string[] mailTos = new string[] { mailTo };
SendAsync(userState, this._mailFrom, this._displayName, mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public void SendAsync(object userState, string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
SendMail(true, userState, mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
/**////
/// 异步发送邮件
/// ///
异步任务的唯一标识符
///
public void SendAsync(object userState, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
SendMail(true, userState, null, null, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
/**////
/// 发送邮件
/// ///
是否异步发送邮件
///
异步任务的唯一标识符，当 isAsync 为 True 时必须设置该属性， 当 isAsync 为 False 时可设置为 null
///
private Boolean SendMail(bool isAsync, object userState, string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
bool mailSent = false;
设置属性值#region 设置属性值
if (string.IsNullOrEmpty(mailFrom))
mailFrom = this._mailFrom;
if (string.IsNullOrEmpty(displayName))
displayName = this._displayName;
MailMessage Email = GetMailMessage(mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
smtpMail.SendCompleted += new SendCompletedEventHandler(SendCompletedCallback);
#endregion
try
{
if (!isAsync)
{
smtpMail.Send(Email);
mailSent = true;
}
else
{
userState = (userState == null) ? Guid.NewGuid() : userState;
smtpMail.SendAsync(Email, userState);
}
}
catch (SmtpFailedRecipientsException ex)
{
//System.Windows.Forms.MessageBox.Show(ex.Message);
mailSent = false;
}
catch (Exception ex)
{
//System.Windows.Forms.MessageBox.Show(ex.Message);
mailSent = false;
}
return mailSent;
}
#endregion
Private#region Private
private MailMessage GetMailMessage(string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
// build the email message
MailMessage emailMessage = new MailMessage();
if (string.IsNullOrEmpty(mailFrom))
mailFrom = this._mailFrom;
if (string.IsNullOrEmpty(displayName))
displayName = this._displayName;
MailAddress mailFromObject = new MailAddress(mailFrom, displayName);
emailMessage.From = mailFromObject;
if (mailTos != null)
{
foreach (string mailto in mailTos)
{
if (!string.IsNullOrEmpty(mailto))
{
emailMessage.To.Add(mailto);
}
}
}
if (mailCcs != null)
{
foreach (string cc in mailCcs)
{
if (!string.IsNullOrEmpty(cc))
{
emailMessage.CC.Add(cc);
}
}
}
if (mailBccs != null)
{
foreach (string bcc in mailBccs)
{
if (!string.IsNullOrEmpty(bcc))
{
emailMessage.Bcc.Add(bcc);
}
}
}
if (attachments != null)
{
foreach (string file in attachments)
{
if (!string.IsNullOrEmpty(file))
{
Attachment att = new Attachment(file);
emailMessage.Attachments.Add(att);
}
}
}
emailMessage.Subject = mailSubject;
emailMessage.Body = mailBody;
emailMessage.Priority = priority;
emailMessage.IsBodyHtml = isBodyHtml;
emailMessage.BodyEncoding = bodyEncoding;
return emailMessage;
}
private void SendCompletedCallback(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
bool mailSent = false;
// Get the unique identifier for this asynchronous operation.
String token = e.UserState.ToString();
if (e.Cancelled)
{
//Console.WriteLine("[{0}] Send canceled.", token);
mailSent = false;
}
if (e.Error != null)
{
//Console.WriteLine("[{0}] {1}", token, e.Error.ToString());
mailSent = false;
}
else
{
//Console.WriteLine("Message sent.");
mailSent = false;
}
mailSent = true;
}
#endregion
#endregion
}
#endregion
}