Email security & deliverability · grade A
v=spf1 ip4:108.28.104.81 ip4:50.201.1.7 ip4:50.201.1.16 include:spf.protection.outlook.com ip4:74.115.204.1/24 ip4:23.21.109.212 include:8020079.spf05.hubspotemail.net mx include:mailgun.org include:a._spf.brightspace.com include:_spf.iste.org ~all