smtp.arsystel.com has no NS records.
NS records for this zone are defined at arsystel.com.
NS records for this zone are defined at arsystel.com.
Question and response
Question
dig smtp.arsystel.com. NS
Answer
The response has no answer records.
Authority
arsystel.com. 600 SOA ns-arsys.ui-dns.es. dnsadmin.ionos.com. 2024032519 14400 3600 605000 600
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0