Безопасность и доставляемость почты · grade D
v=spf1 include:servers.mcsv.net include:_spf.salesforce.com include:amazonses.com include:sendgrid.net ip4:198.37.158.50 include:mktomail.com include:mail.zendesk.com include:spf.protection.outlook.com a:zgateway.zuora.com ip4:4.16.170.86 -all