sl.vern.cc has no MX records.
Question and response
Question
dig sl.vern.cc. MX
Answer
The response has no answer records.
Authority
vern.cc. 3600 SOA ns1.vern.cc. ns2.vern.cc. 2026020808 14400 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0