Example Policy

• “v=spf1 mx a:druid.example.net include:gmail.com -all”

• v=spf1

• • SPF Version 1 TXT record identifier

• mx

• • The incoming mail servers (MXes) of the domain are authorized to also send mail for example.net

• a:druid.example.net

• • The server druid.example.net is authorized also

• include:gmail.com

• • Everything authorized by gmail.com is also authorized for example.net

• -all

• • All other servers are NOT authorized (note the “-” sign)