Brand
Slack
Subject line
Slack’s free subscription will now include additional security features
Use case
Announce New FeaturesAbout this email
This announce new features email from Slack uses the subject line "Slack’s free subscription will now include additional security features". Tagged as New Feature(s) Nudge, Product Update, it was sent on June 26, 2025 as part of Slack's lifecycle sequence. Feature announcement emails like this keep users informed about new capabilities and improvements, driving re-engagement and reducing churn by demonstrating product momentum.
Slack journey
Why this works
**Why this works.** The subject line leads with the tier affected (free subscription) before naming the feature (security), so free users immediately know this change applies to them without opening - removing friction from the decision to engage. The pattern here is "tier-first positioning"; you can lift it for any product update where users need instant clarity on whether the change impacts their plan before they invest attention in reading.
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