Email security & deliverability · grade A
v=spf1 ip4:172.81.159.0/24 ip4:204.12.19.188/32 ip4:204.12.14.252/32 include:spf.emailsignatures365.com include:mail.zendesk.com include:spf.protection.outlook.com include:spf.dynect.net include:emsd1.com include:spf.mandrillapp.com include:spf.mailjet.com include:es._spf.adp.com -all