To create an SPF record for a domain:
Log in to the administrative console for your domain.
Locate the page from which you can update the DNS records.
You may need to enable advanced settings.
Create a TXT record containing this text: v=spf1 include:_spf.cloudmore.com ~all
Publishing an SPF record that uses -all instead of ~all may result in delivery problems.
To authorize an additional mail server, add the server's IP address before just before the ~all argument using the format ip4:address or ip6:address. (See Sender Policy Framework for more details on the SPF format.)
Save your changes.
Keep in mind that changes to DNS records may take up to 48 hours to propagate throughout the Internet.