Brand
Buffer
Subject line
You're in the top 15% of Buffer users!
Use case
Celebrate MilestonesTags
About this email
This is a year-in-review email from Buffer, summarizing the user's social media activity over the past year, including the number of posts published and highlighting their achievement of being in the top 15% of users. The email is structured with a congratulatory tone, personalized statistics, and encouragement to continue posting, supported by a clear call-to-action to schedule the next post. The layout includes branded images, a personal sign-off from the team, support links, and social media icons for further engagement and assistance.
Buffer journey
Why this works
**Why this works.** The subject line quantifies the achievement with a specific percentile rank (top 15%) rather than a generic congratulations, so users open because they want to see proof they're actually outperforming others, not because they expect flattery. The pattern here is "specificity signals legitimacy"; you can lift it for any milestone celebration email where you want users to believe the achievement is real and worth acting on.
