SPF (Sender Policy Framework) is an email authentication method that helps prevent unauthorized senders from sending emails using your domain. It works by verifying that SMTP2GO is authorized to send email on your behalf.
This guide will walk you through how to configure SPF for SMTP2GO, a reliable cloud-based SMTP service used for sending transactional and marketing emails securely.
You do not need to update your domain’s SPF record when using SMTP2GO.
SPF is automatically handled when you verify your domain in the “Sending > Verified Senders > Sender domains” section of your SMTP2GO account. During this process, SMTP2GO provides three CNAME records to add to your DNS. The first CNAME record covers SPF by setting a custom return-path domain, which SMTP2GO manages on your behalf.
Because SMTP2GO uses a custom return-path with VERP (Variable Envelope Return Path), SPF authentication and alignment are handled without requiring changes to your existing SPF record.
For detailed instructions on how to update your SPF record through Sendmarc, refer to the Sendmarc SPF Setup Documentation.
Refer to SMTP2GO’s official documentation for SPF setup here.
Find out how to configure your SMTP2GO DKIM settings here.