Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.exclaimer.net include:sendgrid.net include:upicsolutions.com include:spf.constantcontact.com ip4:72.217.244.66 ip4:34.192.131.138 -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.exclaimer.net include:sendgrid.net include:upicsolutions.com include:spf.constantcontact.com ip4:72.217.244.66 ip4:34.192.131.138 -all.