Question and response
Question
dig letter.nttnavi.co.jp. TXT
Answer
letter.nttnavi.co.jp. 600 TXT "v=spf1 ip4:202.234.199.128/25 ip4:210.145.176.192/26 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0