Marketo Certified Expert Certification Practice Test 2025 - Free Marketo Practice Questions and Study Guide

SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) are essential for ensuring email deliverability. These are authentication protocols that help to verify the sender's identity and confirm that an email has not been altered during transmission. Using SPF, you define which mail servers are authorized to send email on behalf of your domain, while DKIM adds a digital signature to your emails. When receiving mail servers check these records against their own systems, they can confirm whether the email is legitimate, thus reducing the likelihood of emails being marked as spam or rejected outright.

This is particularly important in maintaining a good sender reputation, which is crucial for high deliverability rates. When both SPF and DKIM are properly set up, they significantly enhance trust with email providers and increase the chances that your emails will land in the recipient's inbox rather than the junk folder.

In contrast, while analytics, landing page CNAME, and webhooks play important roles in marketing and communication strategies, they do not directly influence email deliverability like SPF and DKIM do. Analytics help track performance and engagement, landing page CNAME assists with branding and user experience, and webhooks are useful for integrating systems and automating processes. However, none of these components ensure that