public MailMessage Initial(string Address) { MailMessage m_Mail = new MailMessage(); //发件人 m_Mail.From = new MailAddress("******@126.com"); //收件人 m_Mail.To.Add(new MailAddress(Address)); //主题 m_Mail.Subject ="代理好久没验证了!!!"; //内容 m_Mail.Body = "赶紧重开一下吧!!!"; //邮件主题和正文编码格式 m_Mail.SubjectEncoding = System.Text.Encoding.UTF8; m_Mail.BodyEncoding = System.Text.Encoding.UTF8; //邮件正文是Html编码 m_Mail.IsBodyHtml = true; //优先级 m_Mail.Priority = System.Net.Mail.MailPriority.High; //添加附件,可以添加多个 //m_Mail.Attachments.Add(new Attachment("c:\\1.txt")); //密件抄送收件人 m_Mail.Bcc.Add(Address); //抄送收件人 m_Mail.CC.Add(Address); return m_Mail; }a SmtpClient client = new SmtpClient(); //这个地方的用户名你可以用split从发送人中截取 client.Credentials = new System.Net.NetworkCredential("****", 密码); client.Port = 25; client.Host = "smtp.126.com"; try { client.Send(Initial("******@qq.com")); //ClientScript.RegisterStartupScript(this.GetType(), "myScript", "<script>alert('发送成功!')</script>"); SuccMsg.Add("发送邮件成功!" + "******@qq.com"); return true; } catch (System.Net.Mail.SmtpException ex) { SuccMsg.Add("发送邮件失败!" + "*****@qq.com"); return false; }