I read that it's not valid to have a CNAME for a domain that also has its own SPF, because all records are taken from the domain that the CNAME points to.
However, this doesn't seem to be what happens for me. I have pi.dantup.com CNAMEd to dantuppi.dynv6.net, however my SPF record seems to work fine (there is no SPF on the dynv6.net domain:
https://toolbox.googleapps.com/apps/dig/#CNAME/pi.dantup.com
https://toolbox.googleapps.com/apps/dig/#TXT/pi.dantup.com
This seems to work fine testing with this tool. However, a friend has his set up very similarly and it appears to not be working. Before digging into this, I'm trying to understand if what mine is doing is correct?
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