SPF is the acronym for Sender Policy Framework, a protection against address forgery for sending email. It identifies SMTP email servers authorized for the transport of messages through  the domain name records (DNS).

Its meant, for example, to stop messages from a sender false_user@example.com from sending emails using machines not authorized by our domain for that purpose.

To configure an SPF record we need to access the domain manager that we wish to redirect. For this we access “Manage domain” from the Control Panel homepage and we take the following steps:

 

1.- Access the domain manager

At Domain manager, inside the section Redirections and DNS configurations we click on “Manage records”.

gestion_de_registros.png

 

2.-Add record

At the List of DNS records click on “Add” a TXT/SPF record.

registro_spf3.png

 

Indicate the subdomain, the value and save the record.

registro_spf4.png

 

How is it configured?

This protocol is configured by the  TXT (DNS) record and as a general rule it looks like this: Subdomain: @

Value: v=spf1 mx a ptr ip4:46.16.60.0/23 include:cdmon.com include:srv.cat ~all

 

Where:

v defines the SPF version used (version1)

record of the DNS for the domain

ptr authorizes the machines under the domain

IP4 v4 IP addresses

IP6 v6 IP addresses

~all Disallows machines that do not fit with that which has been explicitly authorized

 

Once all the data has been entered and saved, the records will be kept and can always be expanded using, http://www.openspf.org/SPF_Record_Syntax

 

3.-Propagation

The SPF record has been created. Now, we only need to wait until changes propagate, an action which can take anywhere between thirty minutes and an hour.

 

If you have any questions, please contact us