The SPF stands for – Sender Policy Framework. This’s a commonly using email validation method by verifying the sender IP address. By verifying sender IP address, we can identify the origin of emails. Enabling SPF for your domain means validating your account with the IP address.
We can enable the SPF simply from the control panel. Here, I am discussing the command line option to enable SPF record for a user under the cPanel server.
In cPanel, there is script to enable the SPF record for a particular user, see the script loacation details pasted below:
Steps to enable SPF
Step I : SSH to your server as root.
Step II : Execute the following script;
Replace username with the cPanel account name.
Click here, to enable SPF for all accounts, How to install/enable SPF records for all accounts on cPanel server – command line option
See also the steps to enable SPF and DKIM for all accounts.