post.lofisnet.ru has no MX records.
Question and response
Question
dig post.lofisnet.ru. MX
Answer
The response has no answer records.
Authority
lofisnet.ru. 86400 SOA ns.lofisnet.ru. admin.lofisnet.ru. 164 20000 7200 3600 172800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0