Domains with DNS TXT v=spf1 a mx include:spf.hornetsecurity.com include:spf.eu.exclaimer.net include:spf.protection.outlook.com a:smtpgw03.nextwerk.de a:web05.nextwerk.de -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.hornetsecurity.com include:spf.eu.exclaimer.net include:spf.protection.outlook.com a:smtpgw03.nextwerk.de a:web05.nextwerk.de -all.