Question and response
Question
dig _spf.fortress.org. TXT
Answer
_spf.fortress.org. 3600 TXT "v=spf1 a:mail.fortress.org include:_net1.fortress.org include:_net2.fortress.org include:_spf.google.com -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0