The overall sentiment is that Return Path/Validity Certification can be a helpful tool in improving email deliverability at Gmail, primarily by encouraging better email marketing practices and necessitating a cleanup of sending habits. It's not a guaranteed solution or a 'magic bullet' for inbox placement. Experts emphasize that building a solid sender reputation through consistent, ethical sending practices, genuine engagement with subscribers, and proper email authentication (SPF, DKIM, DMARC) are critical. Adhering to Google's and Microsoft's bulk sending guidelines, maintaining good list hygiene, avoiding spam traps, and focusing on relevant content are essential factors that certification alone cannot replace. Certification provides value by providing feedback and improving existing processes, but it requires effort and commitment and should not be viewed as a substitute for fundamental email marketing best practices.
7 marketer opinions
The consensus across various email marketing experts and platforms is that Return Path certification (now Validity Certification) can offer some benefits for improving email deliverability at Gmail, primarily through enforcing better sending practices and providing data for issue identification. However, it's not a guaranteed solution or a 'magic bullet'. Its effectiveness is heavily dependent on the sender's commitment to good email hygiene, sender reputation management, and engagement monitoring. Strong authentication (SPF, DKIM, DMARC), list hygiene, subscriber engagement, and relevant content are crucial factors that certification alone cannot replace.
Marketer view
Email marketer from SendGrid explains that while Return Path certification can offer benefits, a better approach to ensuring deliverability lies in using proper authentication (SPF, DKIM, DMARC), engaging with subscribers and segmenting mailing lists. Maintaining good list hygiene is key.
20 Jan 2024 - SendGrid
Marketer view
Email marketer from Litmus emphasizes the importance of sender reputation and engagement metrics in determining email deliverability. While not directly addressing Return Path certification, it highlights the factors Gmail considers when filtering emails.
15 Apr 2025 - Litmus
4 expert opinions
Experts generally agree that Return Path/Validity Certification can be beneficial for improving email deliverability at Gmail, primarily by enforcing better email marketing practices and requiring a cleanup of sending habits. However, it is not a simple solution or a guaranteed path to the inbox. Building a strong sender reputation through ethical sending practices and genuine engagement with subscribers is considered more critical. Certification can be a useful tool for senders committed to improving their program, but it requires effort and isn't a 'golden ticket'.
Expert view
Expert from Email Geeks shares that the benefit of Return Path certification comes from the cleanup process and improvements made to the sending program, rather than Gmail directly favoring certified senders.
12 Apr 2022 - Email Geeks
Expert view
Expert from Spam Resource explains that sender reputation, built through consistent and ethical sending practices, is more important than any certification program for deliverability at Gmail. He suggests focusing on genuine engagement with subscribers and avoiding spam traps.
30 Jan 2025 - Spam Resource
4 technical articles
Documentation suggests that Return Path/Validity certification can improve deliverability by ensuring adherence to industry best practices and compliance with specific requirements. However, Google and Microsoft prioritize adhering to their bulk sending guidelines, authentication (SPF, DKIM, DMARC), spam rates, and engagement metrics. Implementing email authentication standards and following best practices are essential for improving deliverability and demonstrating sender legitimacy to mailbox providers.
Technical article
Documentation from Google Postmaster Tools explains that adhering to Google's bulk sending guidelines is crucial for deliverability. While it doesn't mention Return Path certification directly, it outlines the specific requirements for authentication, spam rates, and engagement that influence Gmail's filtering decisions.
30 Jan 2024 - Google Postmaster Tools
Technical article
Documentation from RFC Editor explains the technical specifications for email authentication standards such as SPF, DKIM, and DMARC, which are essential for improving deliverability and demonstrating sender legitimacy to mailbox providers like Gmail. Implementing these standards can improve your standing.
30 Sep 2022 - RFC Editor
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