Question and response
Question
dig mail.ETELECOM.RU. NS
Answer
mail.ETELECOM.RU. 5 CNAME mx.ETELECOM.RU.
mx.ETELECOM.RU. 5 CNAME mx.gblnet.RU.
Authority
GBLNET.RU. 7893 SOA ns.GBLNET.RU. vvv.GBLNET.RU. 2026021901 10800 1200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0