Setting up SPF for a domain with no SPF record yet and adding a new source or IP to an existing SPF record.
Implementing SPF for your domain involves adding or modifying a DNS TXT record.The process varies slightly depending on whether you're starting from scratch (no existing SPF record) or you're updating an existing SPF record to add a new source or IP.
Here's how to approach both scenarios:
Implementing SPF for a Domain Without an Existing SPF Record
1- Log in to your DNS Management Interface:Access the DNS management interface provided by your domain registrar or DNS hosting provider.
2- Create a New SPF Record:
If you don't have an existing SPF record, you'll need to create a new one. Add a new TXT record with the name @ (or your domain name) and set the value to your SPF record.
Here's a basic example: v=spf1 ip4:123.456.789.0/24 -all
In this example, ip4:123.456.789.0/24 represents the IP address range allowed to send emails for your domain, and -all indicate that all other sources should fail the SPF check.
3- Save Changes and Verify:
Save the changes in your DNS management interface. Verify the SPF record's correctness using our SPF record checkers.
Adding a New Source or IP to an Existing SPF Record
1- Log in to your DNS Management Interface:
Access the DNS management interface provided by your domain registrar or DNS hosting provider.
2- Locate Your Existing SPF Record:
Find your current SPF record in the DNS settings.
It will be a TXT record with a value starting with v=spf1
3- Modify the Existing SPF Record:
To add a new source or IP to your existing SPF record, you need to update the TXT value. Do not remove any existing mechanisms; instead, append the new mechanism at the end.
Here's an example:
Suppose your existing SPF record is: v=spf1 ip4:123.456.789.0/24 include:_spf.google.com -all
To add a new IP address, you would modify it like this: v=spf1 ip4:123.456.789.0/24 ip4:987.654.321.0/24 include:_spf.google.com -all
4- Save Changes and Verify:
Save the changes in your DNS management interface. Verify the updated SPF record's correctness using our SPF record checkers.
Keep in mind that adding multiple 'include' mechanisms could trigger the 10 DNS lookup limit. To address this, you can explore EasySPF, which depends on your subscription. If it's part of your plan, follow the detailed link for Setting up EasySPF. If not, consider optimizing your SPF manually to ensure your SPF lookups stay under the limit of 10.
Additionally, changes to DNS records might take some time to propagate across the internet, so it might take a few hours for the updated SPF record to become fully effective.