Безопасность и доставляемость почты · grade A
v=spf1 include:servers.mcsv.net include:spf.mandrillapp.com ip4:52.14.102.68 ip4:100.35.25.122 ip4:54.85.60.27 include:amazonses.com include:_spf.google.com include:mail.zendesk.com ~all