_spf.online.lv has no MX records.
Question and response
Question
dig _spf.online.lv. MX
Answer
The response has no answer records.
Authority
online.lv. 86400 SOA ns.online.lv. hostmaster.online.lv. 2026011700 7200 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0