Question and response
Question
dig proservers.nl. MX
Answer
proservers.nl. 76421 MX 20 spamgw-fb.proserve.nl.
proservers.nl. 76421 MX 10 spamgw.proserve.nl.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0