Ability to disable SNS bounce handling

README.md

@@ -172,6 +172,41 @@ docker-compose exec postfix postmap -q "community@lists.sasalliance.org" \
   mysql:/etc/postfix/mysql_virtual_alias_maps.cf
 ```
 
+### Bounce Handling (Optional)
+
+**Email bounce handling is optional and disabled by default.**
+
+**Two Configuration Options:**
+
+1. **SNS Webhooks** (Requires SES Production Access):
+   ```bash
+   # In .env file
+   ENABLE_SNS_WEBHOOKS=true
+   ENABLE_BOUNCE_HANDLING=true
+   ```
+   - Real-time bounce notifications via AWS SNS
+   - Automatic member deactivation for hard bounces
+   - Bounce history tracking and management
+   - Requires valid HTTPS domain and SES production access
+   - See `BOUNCE_HANDLING_SETUP.md` for complete setup
+
+2. **Email-Based Handling** (Default for SES Sandbox):
+   ```bash
+   # In .env file (or leave these commented out)
+   ENABLE_SNS_WEBHOOKS=false
+   ENABLE_BOUNCE_HANDLING=false
+   ```
+   - Manual bounce management via email notifications
+   - No automatic processing - requires manual member cleanup
+   - Works with SES sandbox accounts
+   - Bounce-related UI elements are hidden
+
+**When bounce handling is disabled:**
+- `/webhooks/sns` endpoint is not registered
+- Bounce history endpoints return empty results
+- Web UI hides bounce badges and bounce management buttons
+- No automatic member deactivation occurs
+
 ## Security
 
 - **Environment Variables**: All credentials stored in `.env` (git-ignored)