Безопасность и доставляемость почты · grade A
v=spf1 include:_spf.google.com include:sendgrid.net ip4:167.89.42.171 include:mail.zendesk.com include:mktomail.com include:3417319.spf07.hubspotemail.net include:43572980.spf08.hubspotemail.net include:amazonses.com ~all