Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com include:ispgateway.de ~all

There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com include:ispgateway.de ~all.

Top Domains with TXT set to v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com include:ispgateway.de ~all