To create an SPF record for a domain:1. Log in to the Cpanel for your domain.
2. Locate the page from which you can update the DNS records.
You may need to enable advanced settings.
3. Create a TXT record containing this highlighted text: v=spf1 include:_spf.google.com ~all
4. Save your changes.
Keep in mind that changes to DNS records may take up to 48 hours to propagate throughout the Internet.
Multiple SPF records are not recommended and may cause delivery and spam classification issues..