Question and response
Question
dig smtp.srt.cnr.it. HTTPS
Answer
The response has no answer records.
Authority
srt.cnr.it. 3600 SOA nameserver.rm.cnr.it. root.nameserver.rm.cnr.it. 2021100701 43200 1800 2592000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0