_spf.sparkpostmail.com CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig _spf.sparkpostmail.com. NS

Answer

_spf.sparkpostmail.com. 5 NS ns-1691.awsdns-19.co.uk. _spf.sparkpostmail.com. 5 NS ns-628.awsdns-14.net. _spf.sparkpostmail.com. 5 NS ns-269.awsdns-33.com. _spf.sparkpostmail.com. 5 NS ns-1381.awsdns-44.org.

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0