Zone apex
Start of authority
Email
Serial
2026012528
Refresh
8h 20m
Retry
50m
Expire
28d
Negative cache TTL
1d 1h
Question and response
Question
dig mx1.berlin.PTB.DE. SOA
Answer
The response has no answer records.
Authority
berlin.ptb.de. 90000 SOA ns1.ptb.de. postmaster.ptb.de. 2026012528 30000 3000 2419200 90000
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0