Brand
Buffer
Subject line
Introducing: Streaks 🌱
Use case
Announce New FeaturesAbout this email
This email announces a new feature called "streak" from Buffer, designed to encourage users to post weekly and maintain consistent engagement with their audience. The email explains the benefits of the feature, how it works with visuals for easy understanding, and includes multiple call-to-action links directing users to build their streak and schedule posts. The tone is motivating, friendly, and supportive, enhancing user engagement through clear instructions, reminders, and a personal sign-off from a team member.
Buffer journey
Why this works
**Why this works.** The subject line leads with the feature name as a product launch ("Introducing: Streaks") rather than the user benefit, which works because existing Buffer users already trust the brand to ship things worth trying, so novelty alone triggers open rates without requiring benefit-laden copy. The pattern here is "trust-to-novelty positioning"; you can lift it for any feature announcement email to power users where your brand equity is higher than your explanation skills.
