washdc.fios.verizon.net has no MX records.
Question and response
Question
dig washdc.fios.verizon.net. MX
Answer
The response has no answer records.
Authority
washdc.fios.verizon.net. 86400 SOA ns1.verizon.net. dns.verizon.com. 2026022701 86400 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0