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+# Email campaigns
+
+## Acceptance criteria
+
+- Create and configure email campaigns with campaign name, subject, content, and send settings.
+- Target campaigns to defined user segments based on user attributes, activity, and preferences.
+- Schedule campaigns to send immediately or at a future date/time, with optional recurring delivery.
+- Track campaign performance with delivery status, open rate, click rate, bounce rate, and unsubscribe counts.
+- Provide campaign history and analytics so administrators can review performance and compare campaigns.
+
+## Implementation details
+
+### Campaign creation
+
+- Allow administrators to create a campaign with a descriptive name, email subject, preheader, and body content.
+- Support HTML and plain-text email content or templated message blocks.
+- Include email sender details and reply-to address settings.
+- Validate campaign configuration before activation.
+
+### Target segments
+
+- Define target segments using filters such as user role, location, account status, signup date, and custom profile fields.
+- Allow segment previews or estimated audience counts before sending.
+- Support saved segments for reuse across multiple campaigns.
+- Enable excluding specific users, segments, or suppression lists.
+
+### Scheduling
+
+- Enable campaigns to be sent immediately or scheduled for a future date and time.
+- Store schedule settings and keep a record of planned campaign sends.
+- Support optional recurring or batch sends if applicable.
+- Provide clear status labels for draft, scheduled, sending, completed, or cancelled campaigns.
+
+### Performance tracking
+
+- Track key metrics for each campaign: sent count, delivered count, open rate, click-through rate, bounce rate, unsubscribe count, and spam complaint count.
+- Record delivery events and failures with reason details.
+- Provide a campaign summary dashboard with visual metrics and trends.
+- Allow exporting campaign performance data for reporting.
+
+### Campaign history and analytics
+
+- Keep a log of sent campaigns with dates, targets, and status.
+- Allow administrators to compare past campaign performance and identify top-performing segments.
+- Surface engagement patterns to improve future targeting and scheduling decisions.