mgw-external.macromedia.com has no MX records.
Question and response
Question
dig redirect.wip4.adobe.com. MX
Answer
The response has no answer records.
Authority
wip4.adobe.com. 60 SOA sj1gtm003.adobe.com. hostmaster.or1gtm003.adobe.com. 2026020408 10800 3600 604800 60
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0