_spf.itliteclient.ru has no MX records.
Question and response
Question
dig _spf.itliteclient.ru. MX
Answer
The response has no answer records.
Authority
itliteclient.ru. 300 SOA ns1.it-lite.ru. support.it-lite.ru. 2010125734 3600 300 604800 10800
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0