smtp.sarkor.uz has no MX records.
Question and response
Question
dig smtp.sarkor.uz. MX
Answer
The response has no answer records.
Authority
sarkor.uz. 172800 SOA ns1.sarkor.com. support.sarkor.com. 2026022701 86400 7200 3600000 172800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0