Question and response
Question
dig RENREST.RU. MX
Answer
RENREST.RU. 86400 MX 0 mail.RENREST.RU.
Authority
The response has no authority records.
Additional
mail.RENREST.RU. 86400 A 188.186.136.170
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0