利用System.Net.Mail 的SmtpClient发送邮件

/// <param name="toAddr">接受人地址</param>

/// <param name="Cc">抄送</param>

/// <param name="Mcc">密送</param>

/// <param name="from">发送人地址</param>

/// <param name="content">邮件内容</param>

/// <param name="subject">邮件标题</param>

/// <param name="attach">附件</param>

/// <param name="Pwd">密码</param>

public void SendMailByPlainFormat(string toAddr, string Cc, string Mcc, string from, string content, string subject, string attach,string Pwd)

{

MailMessage mailobj = new MailMessage();

mailobj.From = new MailAddress(from);//发件人

//mailobj.To.Add(toAddr); //收件人或下面的收件人组

#region 收件人组

ArrayList list = new ArrayList();

list.Add("**@163.com");

list.Add("**@qq.com");

for (int i = 0; i < list.Count; i++)

{

MailAddress toAddress = new MailAddress(list[i].ToString());

mailobj.To.Add(toAddress);//收件人

}

#endregion

if (Cc != "")

mailobj.CC.Add(Cc); //抄送

if (Mcc != "")

mailobj.Bcc.Add(Mcc); //密送

mailobj.Priority = MailPriority.High; //发送优先级

mailobj.Subject = subject; //主题

mailobj.Body = content; //内容

mailobj.IsBodyHtml = true; //内容是否可以为html形式

mailobj.BodyEncoding = Encoding.Default;

if (attach != "")

{

char[] delim = new char[] { ';' };

foreach (string substr in attach.Split(delim))

{

Attachment MyAttach = new Attachment(substr);

//MailAttachment MyAttach = new MailAttachment(substr);

mailobj.Attachments.Add(MyAttach);

}

}

SmtpClient smtp = new SmtpClient();

//smtp.Host = this.server; //服务器

//smtp.Port = this.port; //端口

//smtp.Credentials = new System.Net.NetworkCredential(this.user, this.password); //用户名和密码

smtp.Host = "smtp."+from.Substring(from.IndexOf("@")+1); //服务器

smtp.Port = 25; //端口

smtp.Credentials = new System.Net.NetworkCredential(from, Pwd); //用户名和密码

smtp.Send(mailobj);

}