asp.net发送邮件

public bool sendMail(string strSmtp,string from,string to,string userName,string Password,string caption,string subject) { try { MailAddress mailFrom = new MailAddress(from); MailAddress mailTo = new MailAddress(to); MailMessage msg = new MailMessage(mailFrom, mailTo); msg.Subject = caption; msg.IsBodyHtml = true; msg.Body = subject; SmtpClient client = new SmtpClient(strSmtp); client.Credentials = new System.Net.NetworkCredential(userName, Password); client.Send(msg); return true; } catch (Exception e1) { System.Web.HttpContext.Current.Response.Write(e1.Message); return false; } } }