private void SendMail(string[] UserIDs)
        {
            string SaveTheDateConnection = ConfigurationManager.ConnectionStrings["iMascotConnectionString"].ConnectionString;
            using (iMascotModelDataContext SaveTheDateDB = new iMascotModelDataContext(SaveTheDateConnection))
            {
                var templateInfo = SaveTheDateDB.EmailTemplates.FirstOrDefault(ab => ab.TemplateID == 1);
                if (templateInfo == null)
                {
                    return;
                }
                string MailSubject = templateInfo.MailSubject ;

                foreach (string UserId in UserIDs)
                {
                    if (!string.IsNullOrEmpty(UserId))
                    {
                        Guid providerUserKey = new Guid(UserId);
                        MembershipUser user = Membership.GetUser(providerUserKey);

                        var usersToken = from ab in SaveTheDateDB.MailTokens
                                         where ab.UserId == providerUserKey
                                         select ab;
                        SaveTheDateDB.MailTokens.DeleteAllOnSubmit(usersToken);

                        SaveTheDateDB.SubmitChanges();
                        MailToken mtoken = new MailToken();
                        mtoken.UserId = providerUserKey;
                        mtoken.UserName = user.UserName;
                        mtoken.EmailToken = Guid.NewGuid();
                        SaveTheDateDB.MailTokens.InsertOnSubmit(mtoken);
                        SaveTheDateDB.SubmitChanges();
                        MailMessage msg = new MailMessage();
                        string MailBody = templateInfo.MailBody.Replace("[!UserName]", user.UserName).Replace("[!Url]" , "<a href=\"" + BaseVirtualAppPath +  "/ResetPassword.aspx?MailToken=" + mtoken.EmailToken.ToString() + "\">here</a>");
                        msg.To.Add(user.Email);
                        msg.Subject = MailSubject.Trim();
                        msg.IsBodyHtml = true;
                        msg.Body = MailBody;
                        SmtpClient smtp = new SmtpClient();
                        smtp.EnableSsl = true;
                        smtp.Send(msg);
                       var userInfo =  SaveTheDateDB.Guests.First(ab => ab.UserId.ToString() == UserId);
                       userInfo.InvitationMail = DateTime.Now;
                       SaveTheDateDB.SubmitChanges();

                    }
                }
            }
        }
 partial void UpdateMailToken(MailToken instance);
 partial void DeleteMailToken(MailToken instance);
 partial void InsertMailToken(MailToken instance);