I'm trying to update the @ record of my domain but if i check on global dns it doesn't seem to propagate.
i've updated the ttl to 1 hour .
I've made the change on 14/08/2018.
if i query ns81.domaincontrol.com it respond with the new value.
today i've changed the ttl back to 600 seconds, maybe 1 hour is too short...
Can someone help me?