chore: add MVP planning backlog

backlog/tasks/task-14 - Send-approved-outreach-through-Stalwart-SMTP.md

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+---
+id: TASK-14
+title: Send approved outreach through Stalwart SMTP
+status: To Do
+assignee: []
+created_date: '2026-06-03 19:14'
+labels:
+  - mvp
+  - email
+  - smtp
+dependencies:
+  - TASK-13
+references:
+  - PRD.md
+priority: high
+ordinal: 14000
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+Implement approved email sending through the self-hosted Stalwart mail server using SMTP/SMTPS and Nodemailer. The system must never send automatically before manual approval and must log recipient, subject, audit link, status, and errors in Convex.
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [ ] #1 Nodemailer is configured for Stalwart SMTP/SMTPS using environment or Convex secrets
+- [ ] #2 E-Mail freigeben und senden sends only the currently approved/editable email draft to the visible recipient
+- [ ] #3 A final send action shows recipient, subject, sender, and audit link before sending
+- [ ] #4 Convex records sent timestamp, recipient, subject, audit link, SMTP result, and any error details
+- [ ] #5 SMTP failures keep the lead in a retryable review state and do not mark the lead as contacted
+<!-- AC:END -->
+
+## Implementation Plan
+
+<!-- SECTION:PLAN:BEGIN -->
+1. Add SMTP transport configuration from secrets.
+2. Add server-side send function that accepts only approved outreach IDs.
+3. Add final confirmation UI with recipient, subject, sender, and audit link.
+4. Store SMTP success/error outcomes and update lead/outreach status.
+5. Test success and failure paths with safe non-production recipients before real use.
+<!-- SECTION:PLAN:END -->