p01mgw03.macromedia.com has no MX records.
Question and response
Question
dig p01mgw03.macromedia.com. MX
Answer
The response has no answer records.
Authority
macromedia.com. 3600 SOA exfer-vip-01.corp.adobe.com. hostmaster.macromedia.com. 3000000010 3600 300 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0