Email security & deliverability · grade A
v=spf1 include:_spf.cio.g1i.one include:mx.spf.checkdomain.de include:web1.spf.checkdomain.de include:spf.protection.outlook.com include:secure-mailgate.com include:mail.zendesk.com ip4:212.123.41.224/28 ip6:2a01:4f8:221:11cd:9734:4c26:6044:5f33 include:_spf.hostedemail.com ~all