blue4.cz MX records

MX Mail server
1h
posta.edera.cz 0 Primary
secondary.blue4.cz 50

Question and response

Question

dig blue4.cz. MX

Answer

blue4.cz. 3600 MX 50 secondary.blue4.cz. blue4.cz. 3600 MX 0 posta.edera.cz.

Authority

The response has no authority records.

Additional

secondary.blue4.cz. 3600 A 37.157.197.66 secondary.blue4.cz. 3600 AAAA 2a02:2b88:6:2dd6:0:0:0:1 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0