Безопасность и доставляемость почты · grade A
v=spf1 include:spf-1.arcelormittal.com include:spf-2.arcelormittal.com include:spf-3.arcelormittal.com include:spf-4.arcelormittal.com include:spf.protection.outlook.com include:spf-002b3401.pphosted.com -all