I created a DMARC record for a domain about 20 hours ago but it is not yet recognized. How long does a DMARC record take to be recognized?
What happens is that for many DNS hosting providers, you will only type "_DMARC" as the host / name and the tool will add your domain name automatically.
I had written "_DMARC.mydomain.com" instead only "_DMARC" which generated the wrong host / name _DMARC.mydomain.com.mydomain.com