ns1.wikimedia.org has no MX records.
Question and response
Question
dig ns1.wikimedia.org. MX
Answer
The response has no answer records.
Authority
wikimedia.org. 600 SOA ns0.wikimedia.org. hostmaster.wikimedia.org. 2026022002 43200 7200 1209600 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0