ns1.pwpadvertising.com has no MX records.
Question and response
Question
dig ns1.pwpadvertising.com. MX
Answer
The response has no answer records.
Authority
pwpadvertising.com. 5518 SOA ns1.pwpadvertising.com. postmaster.pwpadvertising.com. 2025120917 28800 7200 1209600 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0