"v=spf1 ip4:205.201.134.128 include:spf.mandrillapp.com ?all"
Question and response
Question
dig mail128.atl41.mandrillapp.com. SPF
Answer
mail128.atl41.mandrillapp.com. 86400 SPF "v=spf1 ip4:205.201.134.128 include:spf.mandrillapp.com ?all"
Authority
mandrillapp.com. 172800 NS ns-1127.awsdns-12.org.
mandrillapp.com. 172800 NS ns-1934.awsdns-49.co.uk.
mandrillapp.com. 172800 NS ns-289.awsdns-36.com.
mandrillapp.com. 172800 NS ns-720.awsdns-26.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0