Email security & deliverability · grade B
v=spf1 include:spf.unisender.com ip4:176.57.223.0/24 ip4:92.53.116.0/22 ip4:92.53.96.0/22 ip4:92.53.112.0/22 ip4:92.53.104.0/22 ip6:2a03:6f00::/32 ~all