C#发送带附件邮件

/// <summary>
/// 带附件发送
/// </summary>
/// <param name="fromUser">发件的Email</param>
/// <param name="fromUserName">发件人名字</param>
/// <param name="toUser">接收人Eamil</param>
/// <param name="toUserName">接收人名字</param>
/// <param name="cc">抄送者</param>
/// <param name="subjectNm">邮件主题</param>
/// <param name="bodyAll">邮件正文</param>
/// <param name="fj">附件地址</param>
/// <returns></returns>
public static bool SendMailsf(string fromUser, string fromUserName, string toUser, string toUserName, string cc, string subjectNm, string bodyAll, string fj)
{
bool ret = false;
try
{
System.Net.Mail.Attachment objMailAttachment;
//创建一个附件对象
//objMailAttachment = new System.Net.Mail.Attachment("d:\\test.txt");//发送邮件的附件

objMailAttachment = new System.Net.Mail.Attachment(fj);//发送邮件的附件

MailMessage mm = new MailMessage();
mm.From = new MailAddress(fromUser, fromUserName, Encoding.UTF8);
mm.To.Add(toUser);
string[] listc = null;
try
{
if (cc != null && cc != "")
{
listc = cc.Split(',');
for (int i = 0; i < listc.Length; i++)
{
mm.CC.Add(listc[i].ToString());
}

}
}
catch (Exception list)
{
throw list;
}

mm.Attachments.Add(objMailAttachment);//将附件附加到邮件消息对象中
mm.Subject = subjectNm;
mm.SubjectEncoding = Encoding.UTF8;
mm.Body = bodyAll;
mm.BodyEncoding = Encoding.UTF8;
mm.IsBodyHtml = true;
//mm.Priority = MailPriority.High;//加急邮件!

SmtpClient client = new SmtpClient();

string host=ConfigurationManager.AppSettings["SmtpServer"];
string port=ConfigurationManager.AppSettings["SmtpPort"];
string user=ConfigurationManager.AppSettings["SmtpUser"];
string pwd=ConfigurationManager.AppSettings["SmtpPass"];
client.Credentials = new System.Net.NetworkCredential(user, pwd);
client.Host = host;
client.Port = Convert.ToInt32(port);
client.Send(mm);
ret = true;
}
catch (Exception ex)
{
throw ex;
}
return ret;
}