lada.avala.bg has no MX records.
Question and response
Question
dig lada.avala.bg. MX
Answer
The response has no answer records.
Authority
avala.bg. 43200 SOA lada.avala.bg. root.mail.avala.bg. 2025040362 28800 7200 2400000 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0