Email security & deliverability · grade A
v=spf1 mx include:_spf.createsend.com include:_spf1.kfmb.com include:_spf2.kfmb.com include:_spf3.kfmb.com include:eblastengine.com include:aspmx.sailthru.com include:spf.protection.outlook.com include:51504418.spf04.hubspotemail.net -all