Domains with DNS TXT v=spf1 a include:spf.insyst.de include:spf.protection.outlook.com include:spf.nl2go.com ip4:91.208.160.235 ip4:185.104.73.18 include:spf-de.emailsignatures365.com -all
There is 1 domain that have DNS TXT set to v=spf1 a include:spf.insyst.de include:spf.protection.outlook.com include:spf.nl2go.com ip4:91.208.160.235 ip4:185.104.73.18 include:spf-de.emailsignatures365.com -all.