Question and response
Question
dig rs501-realsender.com. TXT
Answer
rs501-realsender.com. 300 TXT "v=spf1 include:spf.realsender.com -all"
Authority
rs501-realsender.com. 172800 NS ns-1403.awsdns-47.org.
rs501-realsender.com. 172800 NS ns-1766.awsdns-28.co.uk.
rs501-realsender.com. 172800 NS ns-294.awsdns-36.com.
rs501-realsender.com. 172800 NS ns-656.awsdns-18.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0