Email security & deliverability · grade A
v=spf1 ip4:155.56.208.100/30 ip4:157.133.97.216/30 ip4:169.145.66.70/31 ip4:169.145.66.72/31 include:_spf.google.com include:amazonses.com include:aspmx.sailthru.com include:_spf.elasticemail.com include:spf.protection.outlook.com -all