Question and response
Question
dig _spf.mdp.comcast.net. TXT
Answer
_spf.mdp.comcast.net. 7200 TXT "v=spf1 a:webmail.comcast.com ip4:96.114.127.0/27 ip4:68.87.28.32/27 ip4:96.103.94.0/26 ip4:96.106.48.128/26 ip6:2001:558:fe14:76:68:87:28:0/120 ip6:2001:558:fe21:39:96:114:127:0/120 ip6:2001:558:fd01:2b62::/64 ip6:2001:558:fd00:352c::/64 ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0