Sender Policy Framework Check

     Give the domain name as used for email addresses

MX Email reception

  • microsoft-com.mail.protection.outlook.com

    • Sender Policy Framework

    SPF (Sender Policy Framework) is an email authentication method designed to detect forging sender addresses during the delivery of the email. With SPF, there is an exhaustive list defined of the server IP addresses that are allowed to send emails for @domain.com addresses.
    v=spf1 include:_spf-a.microsoft.com include:_spf-b.microsoft.com include:_spf-c.microsoft.com include:_spf-ssg-a.microsoft.com include:spf-a.hotmail.com include:_spf1-meo.microsoft.com -all
         SPF Version: v=spf1
         SPF policy for @microsoft.com addresses is defined in
  • _spf-a.microsoft.com
  • _spf-b.microsoft.com
  • _spf-c.microsoft.com
  • _spf-ssg-a.microsoft.com
  • spf-a.hotmail.com : Hotmail (Microsoft)
  • _spf1-meo.microsoft.com

    • Examples

    SPF: @amazon.com
    SPF: @apple.com
    SPF: @azure.com
    SPF: @facebook.com
    SPF: @gmail.com
    SPF: @google.com
    SPF: @googlemail.com
    SPF: @icloud.com
    SPF: @instagram.com
    SPF: @microsoft.com
    SPF: @nytimes.com

    References

    Sender Policy Framework
    Open-SPF