{
"mx": [
"10 esa3.itmc.tu-dortmund.de.",
"10 esa4.itmc.tu-dortmund.de."
],
"spf": [
"v=spf1 ip4:93.190.66.6 ip4:129.217.4.40 ip4:129.217.128.0/24 ip4:129.217.131.0/24 ip4:195.66.99.135 ip4:62.75.247.44 ip4:212.227.89.57 ip4:217.160.226.166 ip4:82.165.193.1 ip4:85.25.144.9 ip4:54.194.192.132 ip4:87.79.30.25 ip4:87.79.30.30 ip4:91.217.141.0\" \"/24 ip4:95.172.90.143 ip4:95.172.90.156 ip4:128.176.118.0/25 ip4:216.147.218.8/30 ip4:129.217.255.118 ip4:129.217.255.119 ip4:129.217.255.120 ip4:129.217.255.121 ip4:129.217.231.64/26 ip4:185.134.242.25 ip6:2001:638:50D:2000::/64 ip4:77.220.249.219 -all"
]
}