diff --git a/managed-keys.bind b/managed-keys.bind
index c93b1e2..e3f7f69 100644
--- a/managed-keys.bind
+++ b/managed-keys.bind
@@ -1,13 +1,13 @@
 $ORIGIN .
 $TTL 0	; 0 seconds
 @			IN SOA	. . (
-				4          ; serial
+				63         ; serial
 				0          ; refresh (0 seconds)
 				0          ; retry (0 seconds)
 				0          ; expire (0 seconds)
 				0          ; minimum (0 seconds)
 				)
-			KEYDATA	20210817181358 20210816173915 19700101000000 257 3 8 (
+			KEYDATA	20210915190751 20210816173915 19700101000000 257 3 8 (
 				AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTO
 				iW1vkIbzxeF3+/4RgWOq7HrxRixHlFlExOLAJr5emLvN
 				7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5
@@ -17,5 +17,5 @@ $TTL 0	; 0 seconds
 				A4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnXGXws
 				9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU=
 				) ; KSK; alg = RSASHA256; key id = 20326
-				; next refresh: Tue, 17 Aug 2021 18:13:58 GMT
+				; next refresh: Wed, 15 Sep 2021 19:07:51 GMT
 				; trusted since: Mon, 16 Aug 2021 17:39:15 GMT
diff --git a/managed-keys.bind.jnl b/managed-keys.bind.jnl
index e619f0f..7d6950b 100644
Binary files a/managed-keys.bind.jnl and b/managed-keys.bind.jnl differ
diff --git a/mini-beieli.ch.zone b/mini-beieli.ch.zone
index 64275c6..10a2f21 100644
--- a/mini-beieli.ch.zone
+++ b/mini-beieli.ch.zone
@@ -2,7 +2,7 @@ $TTL 4h
 $ORIGIN mini-beieli.ch.
 
 @  1D  IN	 SOA ns1.nbit.ch. hostmaster.nbit.ch. (
-			      2021080501 ; serial
+			      2021091501 ; serial
 			      3H ; refresh
 			      120; retry
 			      2w ; expire
@@ -30,3 +30,7 @@ www       IN      A       65.21.56.41
 www       IN      AAAA    2a01:4f9:c010:332f::1
 dev       IN      A       65.21.3.242
 dev       IN      AAAA    2a01:4f9:c010:24a0::1
+
+dkim._domainkey     IN TXT "v=DKIM1;k=rsa;t=s;s=email;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWf0jAQB8COCmLcN76BNijyhnKnafRIXilIbr+Qu2sgX0L+2o1oo/XE0iFJ5x2oUdfLq/SpMAvu71hTX/IFVlnfR1hf+gThm1yKY1tE2VeD24RckjjdYDg/jZ6/G3BqCJDolBSfQ87NGIlVuBuZVrPUtepy6ILcBrTpGDFZt+QLQIDAQAB"
+
+_dmarc IN  TXT "v=DMARC1;p=reject;pct=100"
diff --git a/wo-bisch.ch.zone b/wo-bisch.ch.zone
index eef0278..3cad8ea 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. (
-			      2021080501 ; serial
+			      2021091501 ; serial
 			      3H ; refresh
 			      120; retry
 			      2w ; expire
@@ -29,3 +29,7 @@ www       IN      A       168.119.240.108
 www       IN      AAAA    2a01:4f8:c010:7e62::1
 wobisch2  IN      A       168.119.240.108
 wobisch2  IN      AAAA    2a01:4f8:c010:7e62::1
+
+dkim._domainkey     IN TXT "v=DKIM1;k=rsa;t=s;s=email;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCpZsK4Coin2X/31uu512bGRsy3qIg/OrCGa3DU7X+jq1oHu62jxAR8exngeOS/uMVZkTeMVEDL5lbGasFam6FqwLGzfGlYEHGXnR5n47Oy6GIoPlh+v5WbiA4ka+v1OM5729TmUtSjZbKSsnysYQS4dfNFSvexjUVlbA8N5gYIAQIDAQAB"
+
+_dmarc IN  TXT "v=DMARC1;p=reject;pct=100"