shmail3.superhosting.bg has no MX records.
Question and response
Question
dig shmail3.superhosting.bg. MX
Answer
The response has no answer records.
Authority
superhosting.bg. 900 SOA pns1.superhosting.bg. hostmaster.superhosting.bg. 2026021711 3600 600 2419200 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0