spf.realsender.com NS records

NS Authoritative DNS server
2d
ns-1257.awsdns-29.org
Amazon Web Services
Route 53
ns-1640.awsdns-13.co.uk
Amazon Web Services
Route 53
ns-412.awsdns-51.com
Amazon Web Services
Route 53
ns-854.awsdns-42.net
Amazon Web Services
Route 53

Question and response

Question

dig spf.realsender.com. NS

Answer

spf.realsender.com. 172800 NS ns-1257.awsdns-29.org. spf.realsender.com. 172800 NS ns-1640.awsdns-13.co.uk. spf.realsender.com. 172800 NS ns-412.awsdns-51.com. spf.realsender.com. 172800 NS ns-854.awsdns-42.net.

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0