my main problem is that I am not receiving mails to my domain after adding an MX Server to my domain for mailing in Webmin, and After testing a server by mxtoolbox.com tool, I found that there is problem in DMARC Records, it says Missing or Invalid Record like in the picture below:
I added this DMARC Record but there is nothing changed is there somthing missing or wrong in my configuration
...
magicmax.ca. IN A XXX.XXX.XXX.XXX
www.magicmax.ca. IN A XXX.XXX.XXX.XXX
ftp.magicmax.ca. IN A XXX.XXX.XXX.XXX
m.magicmax.ca. IN A XXX.XXX.XXX.XXX
localhost.magicmax.ca. IN A 127.0.0.1
webmail.magicmax.ca. IN A XXX.XXX.XXX.XXX
admin.magicmax.ca. IN A XXX.XXX.XXX.XXX
mail.magicmax.ca. IN MX 1 magicmax.ca.
...
_dmarc.magicmax.ca. IN TXT "v=DMARC1; pct=100; ruf=mailto:dmarc_afrf@mail.magicmax.ca; rua=mailto:dmarc_agg@mail.magicmax.ca; p=quarantine; adkim=r; aspf=r"