How do SPF records and DKIM keys work with multiple email services like Klaviyo and Shopify?

When utilizing multiple email services such as Klaviyo and Shopify, it is crucial to properly configure both SPF and DKIM records to ensure optimal email deliverability and prevent spoofing. Each service requires its own DKIM key, and these keys must be set up correctly in the DNS records, utilizing unique selectors for differentiation. Although some sources suggest separate SPF records for each platform, the prevailing guidance indicates that a single SPF record that includes all authorized sending sources—using the 'include:' mechanism for each service—is the correct approach. The SPF record should be placed in a TXT record within the DNS settings and pertain to the bounce or Return-Path domain. It's essential to avoid exceeding the SPF 10 DNS lookup limit and to adhere to SPF syntax guidelines outlined in RFC 7208. Furthermore, implementing DMARC is critical for compliance with evolving email authentication standards and for instructing recipient servers on handling unauthenticated mail. For Klaviyo, prioritizing DKIM configuration is especially important.

When using multiple email services like Klaviyo and Shopify, proper configuration of SPF and DKIM is crucial for maintaining email deliverability. Each service requires its own DKIM key, and these keys must be correctly set up in the DNS records, using unique selectors to differentiate between services. The SPF record should include all authorized sending sources, using 'include:' mechanisms for each ESP. While multiple SPF records are not allowed, a single SPF record should include all authorized sending services. It's important to avoid exceeding the SPF 10 DNS lookup limit when adding multiple services. DMARC should also be configured to ensure compliance with new email authentication requirements.

When using multiple email services like Klaviyo and Shopify, it's critical to have the correct DNS entries for each service to avoid deliverability issues. Each platform should ideally have its own SPF record, and you cannot use the same bounce string for different ESPs. For Klaviyo, DKIM is particularly important for authentication and deliverability.

When using multiple email services like Klaviyo and Shopify, both SPF and DKIM records play critical roles in email authentication. SPF records, published as TXT records in your DNS settings, list authorized sending sources for your domain. For multiple services, include mechanisms like 'include:' for each one. DKIM involves adding keys generated by each service to DNS records, ensuring the correct key length and selector usage. Proper SPF configuration prevents spoofing by verifying that emails claiming to be from your domain are actually sent by authorized servers.