Email Security

• SFP, DMARC and DKIM - tool - Reference: https://binsec.nl/powershell-script-for-spf-dmarc-and-dkim-validation/
  • Install Powershell script -

    Install-Module DomainHealthChecker

  • Run the command -

    Invoke-SpfDkimDmarc -Name <domain>

https://www.cloudflare.com/learning/dns/dns-records/dns-spf-record/

Example - DNS TXT record for orourke.tv is the below - which includes the two SMTP IP address for mx1.reg365.net & mx2.reg365.net

v=spf1 ip4:85.233.160.15 ip4:85.233.160.115 –all