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Author: Matthew Vernhout

Matthew Vernhout (@emailkarma) is the Principal Email Advisor with Email Industries, offering clients guidance, advice, and consulting. As Secretary for CAUCE.org and Communications Chair at BIMIGroup.org, he combats email challenges and leads industry initiatives. Matthew, Chairperson Emeritus at ANA's Email Experience Council, also serves on the VGETS.games Board. He's the visionary founder of emailsummit.ca, privacysummitnorth.ca, and emaildojo.io. He was recognized as the 2019 EEC Thought Leader; Matthew, a CIPP/C, shares industry insights at global conferences and on his blog, EmailKarma.net.

Gmail Strengthens Bounce Policies for November 2025

Gmail Strengthens Bounce Policies for November 2025 cover

Gmail is tightening its authentication requirements once again, with new bounce and rejection policies taking effect in November 2025. This update builds on earlier enforcement phases introduced alongside Yahoo’s standards in 2023–2024, signaling a new era of accountability for bulk senders. Unauthenticated emails or those sent without proper SPF, DKIM, and DMARC alignment will now face stricter delivery interruptions, from rate limits to permanent failures. The move emphasizes Gmail’s ongoing push to improve inbox security and reduce spam by enforcing stronger authentication and transparency across the email ecosystem.

Yahoo’s SenderHub: What Marketers Need to Know

Yahoo’s SenderHub: What Marketers Need to Know cover

Yahoo’s new SenderHub Insights gives marketers unprecedented visibility into email performance, complaint rates, and deliverability trends. Learn how to verify your domain, interpret Yahoo’s 0.3% complaint threshold, and combine SenderHub data with Google Postmaster Tools for a complete view of sender reputation and inbox placement.