Question and response
Question
dig au._netblocks.mimecast.com. TXT
Answer
au._netblocks.mimecast.com. 300 TXT "v=spf1 ip4:103.13.69.0/24 ip4:124.47.150.0/24 ip4:124.47.189.0/24 ip4:103.96.23.0/24 ip4:103.96.21.0/24 ip4:180.189.28.0/24 ip4:216.145.217.0/24 ip4:103.96.22.96/28 ip4:103.96.22.22/32 ip4:103.96.20.22/32 ip4:103.96.20.96/28 ~all"
Authority
mimecast.com. 86400 NS dns02.mimecast.net.
mimecast.com. 86400 NS dns03.mimecast.net.
mimecast.com. 86400 NS dns01.mimecast.net.
mimecast.com. 86400 NS dns04.mimecast.net.
Additional
dns01.mimecast.net. 300 A 185.58.87.12
dns02.mimecast.net. 300 A 205.139.110.125
dns03.mimecast.net. 300 A 195.130.217.24
dns04.mimecast.net. 300 A 170.10.128.103
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0