Email security & deliverability · grade A
v=spf1 ip4:134.129.0.0/16 ip4:165.234.0.0/16 ip6:2001:4930::0/36 include:spf.protection.outlook.com include:external.spf.ndsu.edu include:_spf.salesforce.com include:_spf.createsend.com include:mh.blackboard.com a:swmail.showare.com ~all