Domains with DNS TXT v=spf1 a include:spf.hornetsecurity.com include:spf.postal.ccm-service.de include:spf.protection.outlook.com include:mandrillapp.com include:spf.snplus.cloud ip4:145.239.138.77 ip4:217.92.8.235 ip4:51.77.81.169 -all

There is 1 domain that have DNS TXT set to v=spf1 a include:spf.hornetsecurity.com include:spf.postal.ccm-service.de include:spf.protection.outlook.com include:mandrillapp.com include:spf.snplus.cloud ip4:145.239.138.77 ip4:217.92.8.235 ip4:51.77.81.169 -all.

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