_acme-challenge.securemail.seppmaildemo.com. A RRSIG NSEC
Question and response
Question
dig securemail.seppmaildemo.com. NSEC
Answer
securemail.seppmaildemo.com. 3600 NSEC _acme-challenge.securemail.seppmaildemo.com. A RRSIG NSEC
Authority
seppmaildemo.com. 3600 NS ns.seppmail.ch.
seppmaildemo.com. 3600 NS ns.seppmail.io.
seppmaildemo.com. 3600 NS ns.seppmail.cloud.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0