Безопасность и доставляемость почты · grade A
v=spf1 a mx include:sendgrid.net include:_spf.google.com include:cmail1.com include:aspmx.googlemail.com include:amazonses.com include:_spf.activetrail.com ip4:174.37.85.96/28 ip4:208.75.56.13/32 ~all