selectsystem.cz MX records

MX Mail server
1d
mail.spk.cz 10 Primary
mail-backup.spk.cz 20

Question and response

Question

dig selectsystem.cz. MX

Answer

selectsystem.cz. 86400 MX 10 mail.spk.cz. selectsystem.cz. 86400 MX 20 mail-backup.spk.cz.

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0