Безопасность и доставляемость почты · grade A
v=spf1 mx ip4:13.228.3.214/32 ip4:166.78.71.191/32 include:sendgrid.net include:_spf.google.com include:_spf.atlassian.net include:spf-00543801.pphosted.com include:amazonses.com a include:_spf.salesforce.com -all