mail1.SALENAMES.RU has no MX records.
Question and response
Question
dig mail1.SALENAMES.RU. MX
Answer
The response has no answer records.
Authority
SALENAMES.RU. 600 SOA ns1.r01.RU. noc.parkline.RU. 2025051200 10800 1800 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0