Безопасность и доставляемость почты · grade A
v=spf1 include:everbridge.net include:spf.amfam.com include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:spf.mandrillapp.com include:spfa.navexglobal.com include:cust-spf.exacttarget.com ~all