London2.Level3.net has no MX records.
Question and response
Question
dig London2.Level3.net. MX
Answer
The response has no answer records.
Authority
London2.Level3.net. 3600 SOA ns2.Level3.net. dns.level3.net. 2026021802 7200 600 2592000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0