diff --git a/wo-bisch.ch.zone b/wo-bisch.ch.zone
index 7619a2f..0e49569 100644
--- a/wo-bisch.ch.zone
+++ b/wo-bisch.ch.zone
@@ -2,7 +2,7 @@ $TTL 4h
 $ORIGIN wo-bisch.ch.
 
 @  1D  IN	 SOA ns1.nbit.ch. hostmaster.nbit.ch. (
-			      2022123001 ; serial
+			      2024080901 ; serial
 			      3H ; refresh
 			      120; retry
 			      2w ; expire
@@ -13,7 +13,7 @@ $ORIGIN wo-bisch.ch.
 
        IN  MX  10 mail.nbit.ch.  ; Mail Exchange
 
-       IN  TXT "v=spf1 mx -all"
+       IN  TXT "v=spf1 mx a:onyx-dev.nbit.ch -all"
 
        IN  TXT "google-site-verification=QetTfKzF08piZ9jYSUcTsnRKO8vyCaUrEafNq4rcqZM"