Question and response
Question
dig mailob1.concordfax.com. RRSIG
Answer
The response has no answer records.
Authority
concordfax.com. 600 SOA a1.uberns.com. postmaster.concordfax.com. 2602230001 3600 600 691200 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0