_imap._tcp.comcast.net. TXT RRSIG NSEC
Question and response
Question
dig _spfv6.comcast.net. NSEC
Answer
_spfv6.comcast.net. 900 NSEC _imap._tcp.comcast.net. TXT RRSIG NSEC
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0