diff --git a/internal/nsupdate/nsupdate.go b/internal/nsupdate/nsupdate.go
index 4b4f51d..1fdbbb5 100644
--- a/internal/nsupdate/nsupdate.go
+++ b/internal/nsupdate/nsupdate.go
@@ -41,6 +41,7 @@ func (c NsUpdateStruct) UpdateTXT(record, recordType, value string) error {
 	r, err := net.LookupTXT(record)
 	if err != nil {
 		config.Cfg.Log.Info("unable to get existing record", "record", record, "error", err)
+		return err
 	}
 
 	var oldTXT string
@@ -135,7 +136,7 @@ func sanitizeTXT(s string) string {
 	s = ""
 	for i, r := range a {
 		s += string(r)
-		if i > 0 && (i+1)%254 == 0 {
+		if i > 0 && (i+1)%200 == 0 {
 			s += string(`" "`)
 		}
 	}