Question and response
Question
dig us.app.aventri.com. TXT
Answer
us.app.aventri.com. 300 TXT "v=spf1 include:app.aventri.com include:mailgun.org ~all"
Authority
aventri.com. 172800 NS ns-1311.awsdns-35.org.
aventri.com. 172800 NS ns-1557.awsdns-02.co.uk.
aventri.com. 172800 NS ns-175.awsdns-21.com.
aventri.com. 172800 NS ns-626.awsdns-14.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0