ns3.reedelsevier.com has no TXT records.
Question and response
Question
dig ns3.reedelsevier.com. TXT
Answer
The response has no answer records.
Authority
reedelsevier.com. 900 SOA spn5061.telecom.regn.net. hostmaster.lexisnexis.com. 2802 3600 900 2419200 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0