Even when DMARC reports a 'pass,' the presence of temperrors and softfails for Klaviyo indicates underlying issues that should be investigated. These errors can stem from various sources, including email forwarding, DNS propagation problems, mismatches in DKIM selectors, and even overly permissive DMARC policies. While DMARC might pass because at least one authentication method (SPF or DKIM) aligns, consistent authentication failures can negatively impact sender reputation and email deliverability over time. Therefore, addressing these errors is crucial for maintaining a positive sender reputation and ensuring reliable email delivery.