Yahoo
Domain verification
yahoo-verification-key=D67Tj1MgwDpaB4WTzf5zTqFCH5vWQ6GMSdehUWCzHa8=
Question and response
Question
dig mailengine1.com. TXT
Answer
mailengine1.com. 300 TXT "v=spf1 ip4:66.59.0.0/19 ip4:72.19.192.0/18 ip4:192.40.160.0/19 ~all"
mailengine1.com. 300 TXT "yahoo-verification-key=D67Tj1MgwDpaB4WTzf5zTqFCH5vWQ6GMSdehUWCzHa8="
Authority
mailengine1.com. 172800 NS ns-1321.awsdns-37.org.
mailengine1.com. 172800 NS ns-1797.awsdns-32.co.uk.
mailengine1.com. 172800 NS ns-389.awsdns-48.com.
mailengine1.com. 172800 NS ns-640.awsdns-16.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0