- Webinar
Holiday mid-season check in: What DMARC data reveals about BFCM delivery challenges
[RECORDING] December 16, 2025
The 2025 holiday season is in full swing, and the inbox battles are real. Join Valimail’s Al Iverson and Scott Ziegler for a mid-season check-in powered by fresh DMARC data from Black Friday and Cyber Monday. See how Google and Yahoo’s new sender requirements are impacting real-world message delivery across platforms, and where legitimate senders are getting caught by Gmail’s 4xx/5xx feedback codes.
Here we unpack which mail streams and infrastructures are struggling most, highlight common configuration gaps, and show how to use authentication data to quickly identify and fix issues. Whether you manage your own email infrastructure or work with an ESP, you’ll leave with practical steps to strengthen your sending posture, recover deliverability, and set yourself up for success through the rest of the holiday season (and into 2026) as enforcement continues to evolve.
Meet the speakers:
Al Iverson
Industry Research and Community Engagement Lead at Valimail
Scott Ziegler
VP of Product at Valimail
Scott Ziegler is the Vice President of Product at Valimail. With over two decades of experience, Scott has an impressive background in software engineering and product management, spanning from pre-seed SaaS startups to Fortune 50 companies.
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