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Click-Through Rate Decline Post-Gemini: The 4.35% to 3.93% Problem
Featured story Email Marketing

Click-Through Rate Decline Post-Gemini: The 4.35% to 3.93% Problem

Industry CTR fell from 4.35% to 3.93% after Gemini rollout. Diagnose whether your drop is AI summaries, list quality, or offer weakness, and what to do.

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Gmail AI Summary Cards: How Gemini Rewrites Your Email Before Anyone Opens It
Gmail

Gmail AI Summary Cards: How Gemini Rewrites Your Email Before Anyone Opens It

Gmail's Gemini AI generates summary cards from your email before subscribers open it. Here's what the AI prioritizes and how to structure content so the summary works for you.

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Gmail's AI Inbox Tab: Preparing for Relevance-Based Sorting Becoming Default
Email Marketing

Gmail's AI Inbox Tab: Preparing for Relevance-Based Sorting Becoming Default

Gmail is shifting inbox tabs from recency to AI-determined relevance. What the signals are, who wins, who loses, and how to audit your placement now.

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Gmail's Gemini Era Explained: What Changed in January 2026 for Marketers
Gmail

Gmail's Gemini Era Explained: What Changed in January 2026 for Marketers

Gemini rolled into Gmail for most users by January 2026. Here is what actually changed for marketers, what to stop worrying about, and what now matters more than it used to.

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Gmail's November 2025 Enforcement Shift: From Soft 421 Deferrals to Hard 550 Rejections
Email Deliverability

Gmail's November 2025 Enforcement Shift: From Soft 421 Deferrals to Hard 550 Rejections

Gmail swapped soft 421 deferrals for hard 550 rejections in November 2025. Here is what triggered the change, what it means for your list health, and what to do before your next send.

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Manage Subscriptions in Gmail: How High-Frequency Senders Get Exposed
Email Marketing

Manage Subscriptions in Gmail: How High-Frequency Senders Get Exposed

Gmail Manage Subscriptions makes bulk unsubscribe trivial and exposes high-frequency senders. What it shows, who gets cut, and how to audit your cadence.

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New Engagement Metrics for an AI-Mediated Inbox: Scroll, Dwell, Reply Rate
Email Marketing

New Engagement Metrics for an AI-Mediated Inbox: Scroll, Dwell, Reply Rate

Opens are compromised. Reply rate, scroll depth, dwell time, and hover are the new signals Gmail AI weighs. Build a proxy measurement framework now.

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The End of One-Big-Image Emails: Why Gemini Cannot Read Them
Email Marketing

The End of One-Big-Image Emails: Why Gemini Cannot Read Them

Image-only emails produce no Gemini AI summary, invisible to subscribers before they open. The era of one-big-image emails is ending faster than most brands realize.

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The Open Rate Is Broken: Gmail Auto-Opens and the Metric You Can No Longer Trust
Email Marketing

The Open Rate Is Broken: Gmail Auto-Opens and the Metric You Can No Longer Trust

Gmail's AI prefetching inflates open rates with machine-generated events. Your 2026 open rate is not comparable to 2022. Here's what to measure instead.

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Varying the From Field: A New Tactic Against AI Summary Stacking in Gmail
Gmail

Varying the From Field: A New Tactic Against AI Summary Stacking in Gmail

Sending every email from the same From name used to be best practice. In the Gemini era, it can cause AI summary stacking that compresses your brand into a single line subscribers ignore.

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