Web简单的发送邮件激活功能(带附件)

//命名空间using System.Net.Mail;
/// <summary>
        /// 发送邮件
        /// </summary>
        /// <param name="fromemail">发件人邮箱</param>
        /// <param name="pwd">发件人密码</param>
        /// <param name="toemail">收件人邮箱</param>
        /// <param name="subject">主题</param>
        /// <param name="body">内容</param>
        /// <param name="file">附件</param>


        /// <returns></returns>
        public static bool send(string fromemail, string pwd, string toemail, string subject, string body,string file)
        {
            Attachment objMailAttachment = new Attachment(file);//发送邮件的附件   
            SmtpClient client = new SmtpClient();
            client.Host = "smtp." + fromemail.Remove(0, fromemail.IndexOf("@") + 1);
            client.UseDefaultCredentials = false;
            client.Credentials = new System.Net.NetworkCredential(fromemail, pwd);
            client.DeliveryMethod = SmtpDeliveryMethod.Network;
            MailMessage message = new MailMessage(fromemail, toemail);
            message.Attachments.Add(objMailAttachment);//将附件附加到邮件消息对象中   
            message.Subject = subject;
            message.Body = body;
            message.BodyEncoding = Encoding.UTF8;
            message.IsBodyHtml = true;
            try
            {
                client.Send(message);
                return true;
            }
            catch
            {
                throw;
            }
        }

不一样的

        public bool SendMail(string smtpserver, string username, string pwd, MailMessage MailIn)
        {
            SmtpClient mailClient = null;
            try
            {
                mailClient = new SmtpClient(smtpserver);
                mailClient.UseDefaultCredentials = false;
                //if (!string.IsNullOrEmpty(username))
                mailClient.Credentials = new NetworkCredential(username, pwd);
                mailClient.DeliveryMethod = SmtpDeliveryMethod.Network;
                //mailClient.Timeout = 50;//同步发送邮件的超时时间。
                mailClient.Timeout = 50000;
                //if (MailIn == null || ((MailIn.To == null || MailIn.To.Count == 0)))
                //    return false;
                mailClient.Send(MailIn);
            }
            catch (Exception e)
            {
                //记录日志。
                //LogHelper.Error("MailHandler", "邮件发送失败:" + e.Message);
                //WriteLogFile("邮件发送失败：" + e.Message);
                return false;
            }
            return true;
        }

                   string fromemail = SkyCenter.Config.SettingsProvider.Instance().GetSettingsInfo("SmtpUsername").KeyValue;
                    string pwd = SkyCenter.Config.SettingsProvider.Instance().GetSettingsInfo("SmtpPassword").KeyValue;
                    string smtp = SkyCenter.Config.SettingsProvider.Instance().GetSettingsInfo("SmtpServer").KeyValue;
                    string toemail = SkyCenter.Config.SettingsProvider.Instance().GetSettingsInfo("WebMasterEmail").KeyValue;

                    MailMessage message = new MailMessage(fromemail, toemail);
                    Attachment objMailAttachment = new Attachment(Information);//发送邮件的附件   
                    message.Subject = "品牌";
                    message.Body = sb.ToString();
                    message.BodyEncoding = Encoding.UTF8;
                    message.IsBodyHtml = true;
                    message.Attachments.Add(objMailAttachment);//将附件附加到邮件消息对象中   
                    if (SendMail(smtp, fromemail.Substring(0, fromemail.IndexOf("@")), pwd, message))
                    {
                        //if (send("品牌", sb.ToString(), Information))
                        //{
                        base.Alert("品牌成功,已发送邮件！");
                    }