SPF rules

This page explains how to add Sender Policy Framework (SPF) rules to your DNS Zones.

SPF allows the owner of an Internet domain to use special format DNS TXT rules to specify which machines are authorized to transmit e-mail for that domain.

Step-by-step guide

1. In the DNS zones page, select the desired zones and click the SPF Rules link. In the new page that opens, you can manage the SPF rules.

   SPF Rules can be defined only for zones added from the control panel.

2. To create a SPF for one of the origin's subdomains, in the Host text box, enter the subdomain using the following format subodmain.[domain]. Leaving this field empty, will generate the TXT record for $ORIGIN. 
3. Enter the actual rule. Each rule comprises three elements:
   
   • Use the first drop down box to select a qualifier. The following qualifiers are available:

   • "+" Pass
   • "-" Fail
   • "~" SoftFail
   • "?" Neutral

   • Use the second drop down box to select a mechanism or a modifier. The following mechanisms are available:

   • all
   • ip4
   • ip6
   • a
   • mx
   • ptr
   • exists
   • include

          And the following modifiers:

   • redirect
   • exp

   • Use the text box to enter the target URL.

4. Use the + button to add rules to the list and the - button to remove rules from the list. When you are done, click OK to apply your changes and return to the DNS zones page.

5. Click Cancel if you wish to return to the DNS zones page without applying your changes.