Microsoft
Domain verification
MS=ms38817724
Question and response
Question
dig sigsync.com. TXT
Answer
sigsync.com. 300 TXT "MS=ms38817724"
sigsync.com. 300 TXT "v=spf1 ip4:40.87.19.163 ip4:68.218.104.65 ip4:74.234.83.29 include:_spf.google.com include:spf-us.mailssig.com -all"
Authority
sigsync.com. 172800 NS ns-1325.awsdns-37.org.
sigsync.com. 172800 NS ns-1795.awsdns-32.co.uk.
sigsync.com. 172800 NS ns-228.awsdns-28.com.
sigsync.com. 172800 NS ns-795.awsdns-35.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0