string schemaUri = "http://schemas.microsoft.com/powershell/Microsoft.Exchange";
            string exPWD = ConfigurationManager.AppSettings["exPWD"].ToString();
            exPWD =Common.Utility.AESEncrypt.Decrypt(exPWD);
            string exUser = ConfigurationManager.AppSettings["exUser"].ToString();

            SecureString ser = ConvertToSecureString(exPWD);
            PSCredential credential_ = new PSCredential("centhome\\"+ exUser, ser);

            SearchMailModel smM = new SearchMailModel();
            smM.From = from;
            smM.Subject = subject;
            smM.Targetmail = targetmail;
            smM.received = received;

            Collection<PSObject> psResult = GetUsersUsingBasicAuth("https://mbx011.centhome.com/powershell", schemaUri,credential_, smM);