网上找到的发送邮件的类，改了一点点，在此谢谢原作者的奉献。
１.源码：
public class CSendMail
{
private MailMessage mailMessage;
private SmtpClient smtpClient;
private string password;//发件人密码 //邮件发送后提醒
public String Info
{
get;
set;
}
/// <summary>
/// 处审核后类的实例
/// </summary>
/// <param name="To">收件人地址</param>
/// <param name="From">发件人地址</param>
/// <param name="Body">邮件正文</param>
/// <param name="Title">邮件的主题</param>
/// <param name="Password">发件人密码</param>
public CSendMail(string To, string From, string Body, string Title, string
Password)
{
mailMessage = new MailMessage();
mailMessage.To.Add(To);
mailMessage.From = new System.Net.Mail.MailAddress(From);
mailMessage.Subject = Title;
mailMessage.Body = Body;
mailMessage.IsBodyHtml = true;
mailMessage.BodyEncoding = System.Text.Encoding.UTF8;
mailMessage.Priority = System.Net.Mail.MailPriority.Normal;
this.password = Password;
}
/// <summary>
/// 添加附件
/// </summary>
public void Attachments(string Path)
{
string[] path = Path.Split(',');
Attachment data;
ContentDisposition disposition;
for (int i = ; i < path.Length; i++)
{
data = new Attachment(path[i], MediaTypeNames.Application.Octet);//实例化附件
disposition = data.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(path[i]);//获取 附件的创建日期
disposition.ModificationDate = System.IO.File.GetLastWriteTime(path[i]);//获取附件的修改日期
disposition.ReadDate = System.IO.File.GetLastAccessTime(path[i]);//获取附 件的读取日期
mailMessage.Attachments.Add(data);//添加到附件中
}
}
/// <summary>
/// 异步发送邮件
/// </summary>
/// <param name="CompletedMethod"></param>
public void SendAsync(SendCompletedEventHandler CompletedMethod)
{
if (mailMessage != null)
{
smtpClient = new SmtpClient();
smtpClient.Credentials = new System.Net.NetworkCredential
(mailMessage.From.Address, password);//设置发件人身份的票据
smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
smtpClient.Host = "smtp." + mailMessage.From.Host;
smtpClient.SendCompleted += new SendCompletedEventHandler
(CompletedMethod);//注册异步发送邮件完成时的事件
smtpClient.SendAsync(mailMessage, mailMessage.Body);
}
}
/// <summary>
/// 发送邮件
/// </summary>
public void Send()
{
if (mailMessage != null)
{
try
{
smtpClient = new SmtpClient();
smtpClient.Credentials = new System.Net.NetworkCredential
(mailMessage.From.Address, password);//设置发件人身份的票据
smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
smtpClient.Host = "smtp." + mailMessage.From.Host;
smtpClient.Timeout = ; ／／设置超时时间
smtpClient.Send(mailMessage);
}
catch (SmtpException ex)
{
Info = "邮件发送失败";
}
}
} private static void CompletedMethod(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
// Get the unique identifier for this asynchronous operation.
String token = (string)e.UserState;
if (e.Error != null)
{
// 异步发送的错误信息
// Console.WriteLine("[{0}] {1}", token, e.Error.ToString());
}
}
} ２.使用，经测试ＱＱ／１６３／ｓｉｎａ均可使用
TYKY_OA.Web.CSendMail sm = new CSendMail(this.qqNum.Value.Trim() + "@qq.com",
"ＸＸＸ@163.com", "已重置你的的密码，新密码为：" + password + " 请注意保管！",
"密码重置邮件", "××××××");
sm.Send();
//发送失败
if (sm.Info != null)
{
ClientScript.RegisterStartupScript(this.GetType(), "tooltip", "alert('邮件发送失败，可能的原因是网络故障或邮箱不可达...')",true);
}
//发送成功
else
{
//修改数据库密码字段
staff.pwd = password;
if (bllstaffs.Update(staff))
{
ClientScript.RegisterStartupScript(this.GetType(), "tooltip", "alert('密码已重置，请注意查收邮件')", true);
}
else
{
ClientScript.RegisterStartupScript(this.GetType(), "tooltip", "alert('密码重置失败)", true);
} }