The following command can give us some information about how Unbound is resolving the domain:
runagent -m mail1 podman exec rspamd unbound-control lookup nethserver.org
Example Output
ns8:/# unbound-control lookup nethserver.org
The following name servers are used for lookup of nethserver.org.
;rrset 48895 6 0 2 0
org. 48895 IN NS a0.org.afilias-nst.info.
org. 48895 IN NS a2.org.afilias-nst.info.
org. 48895 IN NS b0.org.afilias-nst.org.
org. 48895 IN NS b2.org.afilias-nst.org.
org. 48895 IN NS c0.org.afilias-nst.info.
org. 48895 IN NS d0.org.afilias-nst.org.
;rrset 48895 1 1 11 5
org. 48895 IN DS 26974 8 2 4FEDE294C53F438A158C41D39489CD78A86BEB0D8A0AEAFF14745C0D16E1DE32
org. 48895 IN RRSIG DS 8 1 86400 20241123170000 20241110160000 61050 . sqdzt0uT9srBjvA7gjnyw+DPM6nFI2wehTwUn/Lu+OjT1fzeKkk/i9PM4i+weSjmdQRmYVNuv4XruAe7KT2EOSyeE/sXRQk/p7Kz90cZ0k/aqUm0MdJnEduc6uZgYqLDim7edtf3Wv/V1AQgF3otU2gsf92rYBl1vwnSeQPkwAz4X6fnKz75nqSvw2/ZmDa9mpjvSi1hq9zEkNIcv281pDsSKH5oSFGPGyfFt61KhBY9B9NkSt9fQdp7Qwo/7FQJdJ2/ChhizW5LsfZ/MoxgMB5ym+9V/46oZ9ycGnzou5hMS1SYlQyOqLD6dDwhMdQxQCsyDXkSWb8wyiKJXEXWpQ== ;{id = 61050}
;rrset 48895 1 0 1 0
d0.org.afilias-nst.org. 48895 IN A 199.19.57.1
;rrset 48895 1 0 1 0
d0.org.afilias-nst.org. 48895 IN AAAA 2001:500:f::1
;rrset 48895 1 0 1 0
c0.org.afilias-nst.info. 48895 IN A 199.19.53.1
;rrset 48895 1 0 1 0
c0.org.afilias-nst.info. 48895 IN AAAA 2001:500:b::1
;rrset 48895 1 0 1 0
b2.org.afilias-nst.org. 48895 IN A 199.249.120.1
;rrset 48895 1 0 1 0
b2.org.afilias-nst.org. 48895 IN AAAA 2001:500:48::1
;rrset 48895 1 0 1 0
b0.org.afilias-nst.org. 48895 IN A 199.19.54.1
;rrset 48895 1 0 1 0
b0.org.afilias-nst.org. 48895 IN AAAA 2001:500:c::1
;rrset 48895 1 0 1 0
a2.org.afilias-nst.info. 48895 IN A 199.249.112.1
;rrset 48895 1 0 1 0
a2.org.afilias-nst.info. 48895 IN AAAA 2001:500:40::1
;rrset 48895 1 0 1 0
a0.org.afilias-nst.info. 48895 IN A 199.19.56.1
;rrset 48895 1 0 1 0
a0.org.afilias-nst.info. 48895 IN AAAA 2001:500:e::1
Delegation with 6 names, of which 0 can be examined to query further addresses.
It provides 12 IP addresses.
2001:500:e::1 rto 376 msec, ttl 492, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
199.19.56.1 not in infra cache.
2001:500:40::1 rto 376 msec, ttl 492, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
199.249.112.1 not in infra cache.
2001:500:c::1 rto 376 msec, ttl 492, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
199.19.54.1 rto 265 msec, ttl 492, ping 5 var 65 rtt 265, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:500:48::1 rto 376 msec, ttl 492, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
199.249.120.1 not in infra cache.
2001:500:b::1 rto 376 msec, ttl 492, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
199.19.53.1 not in infra cache.
2001:500:f::1 not in infra cache.
199.19.57.1 not in infra cache.