Question and response
Question
dig _spf.muc.ec-messenger.com. TXT
Answer
_spf.muc.ec-messenger.com. 86400 TXT "v=spf1 ip4:195.140.184.0/22 ip4:91.192.40.0/22 ip4:91.222.96.0/22 ip4:141.206.144.0/20 ip4:67.216.224.0/21 ip4:67.216.232.0/23 ip4:67.216.234.0/24 ip4:67.216.239.0/24 -all"
Authority
ec-messenger.com. 86400 NS ns3.ecircle.com.
ec-messenger.com. 86400 NS ns1.ecircle.de.
ec-messenger.com. 86400 NS ns2.ecircle.de.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0