public List <MailChimpUsers> GetUsersByDate()
        {
            List <MailChimpUsers> MyList = null;

            DateTime startDate   = new DateTime(2017, 2, 27);
            DateTime currentDate = DateTime.Now;

            foreach (DateTime day in UtilityService.EachDay(startDate, currentDate))
            {
                DataProvider.ExecuteCmd(GetConnection, "dbo.MailChimp_SelectUsers"
                                        , inputParamMapper : delegate(SqlParameterCollection paramCollection)
                {
                    paramCollection.AddWithValue("@Date", day);
                }
                                        , map : delegate(IDataReader reader, short set)
                {
                    MailChimpUsers Users = new MailChimpUsers();
                    int startingIndex    = 0; //startingOrdinal

                    Users.Email  = reader.GetSafeString(startingIndex++);
                    Users.ListId = reader.GetSafeString(startingIndex++);

                    if (MyList == null)
                    {
                        MyList = new List <MailChimpUsers>();
                    }
                    MyList.Add(Users);
                });
            }
            return(MyList);
        }