Email security & deliverability · grade A
v=spf1 ip4:217.173.238.128/27 ip6:2a00:ec0:1::/64 ip4:157.161.4.0/24 ip4:157.161.3.0/24 ip4:157.161.12.0/22 ip4:157.161.10.0/24 ip4:157.161.9.0/24 ip4:157.161.139.0/24 include:_spf1.imp.ch -all