To set up SPF for your domain, follow these steps:
1. Identify all the IP addresses and servers that are authorized to send emails on behalf of your domain. 2. Create an SPF record in your domain’s DNS settings. This record usually looks like a text (TXT) entry. 3. The SPF record should include the relevant IP addresses and mechanisms to specify which servers are allowed to send emails. An example SPF record might look like this: