spamtitan04.isomedia.com has no MX records.
Question and response
Question
dig spamtitan04.isomedia.com. MX
Answer
The response has no answer records.
Authority
isomedia.com. 600 SOA ns1.isomedia.com. milton.isomedia.com. 2026021703 3600 600 604800 600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0