Email security & deliverability · grade A
v=spf1 include:spf.protection.outlook.com include:spf.corpex.de ip4:212.79.63.205 ip4:93.90.134.112 ip4:212.79.63.203 ip4:212.79.63.206 ip4:213.23.117.22 a mx mx:asknet.de mx:lists.steinberg.net ~all