mail.vermont-it.ru has no MX records.
Question and response
Question
dig mail.vermont-it.ru. MX
Answer
The response has no answer records.
Authority
vermont-it.ru. 3600 SOA ns.vernet.su. hostmaster.vermont-it.ru. 2026021700 7200 1800 1209610 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0