
25 Email Marketing Tactics That No Longer Work in 2026
Email marketing has changed dramatically over the past few years. Here are 25 tactics that once worked—but now hurt performance, waste time, or simply no longer deliver results.

Email marketing has changed dramatically over the past few years. Here are 25 tactics that once worked—but now hurt performance, waste time, or simply no longer deliver results.

From 'spam words cause spam' to 'Tuesday is always the best day to send', email marketing is full of advice that refuses to disappear. Here's what the evidence actually says.

How long should a marketing email be? We analysed industry research, campaign data, and best practices to understand how email length varies across industries—and when shorter or longer emails perform better.

We analysed 100 email subject lines across seven psychological categories to understand what makes people open emails. Discover the patterns, examples, and practical takeaways you can apply to your next campaign.

A comprehensive pre-flight checklist for email campaigns covering strategy, segmentation, personalisation, copy, design, accessibility, QA, deliverability, compliance, tracking, and post-send analysis.

Rushed email campaigns cost businesses thousands in lost revenue, damaged sender reputation, and subscriber churn. Here is why slowing down produces better performance and a comprehensive framework for planning campaigns that actually deliver.

Most marketers think spam filters look for words like 'FREE' or 'BUY NOW'. Modern spam filtering is far more sophisticated. Here is what actually causes marketing emails to land in spam.

Most email programs ignore birthday emails. Here’s why automating them across your database can unlock high engagement, easy conversions, and incremental revenue.

Most email marketers chase big wins. But the real growth comes from small improvements that compound over time—and most people completely miss them.

Most email campaigns fail—but not for the reasons you think. Learn the real causes behind poor performance and how to fix them.

How long should marketing emails actually be? Discover the ideal email length based on real data and see examples of short SaaS, ecommerce, and newsletter emails.

Not all email campaigns are created equal. Discover the eight essential email campaigns every business should use to engage subscribers, increase conversions, and build long-term customer relationships.

Ever wondered what really happens after you send an email campaign? Learn how emails travel from your platform to the inbox — and what determines performance.