3a.mx.openstreetmap:200141c9000104000000000000000032
-# Delegate MTA-STS policy for subdomains
-
-Cmta-sts.noreply.openstreetmap:mta-sts.openstreetmap
-Cmta-sts.otrs.openstreetmap:mta-sts.openstreetmap
-Cmta-sts.messages.openstreetmap:mta-sts.openstreetmap
-
# Publish an SPF record indicating that only shenron sends mail
# https://anders.com/projects/sysadmin/djbdnsRecordBuilder/
'openstreetmap:v=spf1\040ip4\072212.110.172.32\040ip6\0722001\07241c9\0721\072400\072\07232\040mx\040-all:86400
'otrs.openstreetmap:v=spf1\040ip4\072212.110.172.32\040ip6\0722001\07241c9\0721\072400\072\07232\040mx\040-all:86400
+# Announce MTA-STS policy
+
+'_mta-sts.openstreetmap:v=STSv1;\040id=202001281902Z
+
+# Delegate MTA-STS policy for subdomains
+
+C_mta-sts.noreply.openstreetmap:_mta-sts.openstreetmap
+C_mta-sts.otrs.openstreetmap:_mta-sts.openstreetmap
+C_mta-sts.messages.openstreetmap:_mta-sts.openstreetmap
+
# Google postmaster tools verification
Caf323lytato5.openstreetmap:gv-o4v3qh5pfayqex.dv.googlehosted.com