Domains with DNS TXT v=spf1 include:spf.protection.outlook.com ip4:80.152.227.92 ip4:87.138.90.157 a:de.mailers.system-monitor.com mx -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com ip4:80.152.227.92 ip4:87.138.90.157 a:de.mailers.system-monitor.com mx -all.