# Email Rules Sync System

This script synchronizes email rules from AWS DynamoDB to the mail server, enabling:
- **Out-of-Office Auto-Replies** (Sieve scripts)
- **Email Forwarding** (Postfix virtual aliases)

## How It Works

```
┌─────────────┐
│  DynamoDB   │  ← Rules stored here (via Web UI)
│ email-rules │
└──────┬──────┘
       │
       │ Sync Script (every 5 minutes)
       ↓
┌─────────────────────────────────────┐
│     Mail Server (Docker)            │
│  ┌────────────┐  ┌───────────────┐  │
│  │   Sieve    │  │    Postfix    │  │
│  │  Scripts   │  │Virtual Aliases│  │
│  │  (OOO)     │  │ (Forwarding)  │  │
│  └────────────┘  └───────────────┘  │
└─────────────────────────────────────┘
```

## Setup

### 1. Install Dependencies

```bash
cd /home/timo/config-email/sync
npm install
```

### 2. Configure Environment

The `.env` file is already configured with:
- AWS credentials
- DynamoDB table name
- Mail server paths

### 3. Test Manual Sync

```bash
npm start
```

You should see output like:
```
🚀 Starting email rules sync...
📊 DynamoDB Table: email-rules
🌍 Region: us-east-2

📥 Fetching rules from DynamoDB...
✅ Found 2 email rules

📝 Processing Sieve scripts (Out-of-Office)...
✅ Created Sieve script for support@qrmaster.net
✅ Processed 1 Sieve scripts

📮 Updating virtual aliases (Forwarding)...
✅ Found 0 forwarding rules
✅ Updated virtual aliases

🔄 Applying changes to mail server...
✅ Postfix reloaded
✅ Dovecot reloaded

✨ Sync completed successfully!
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Total Rules:        2
OOO Active:         1
Forwarding Active:  0
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
```

### 4. Install as Cron Job (Automatic Sync)

```bash
./install-cron.sh
```

This will:
- Run sync every 5 minutes
- Log to `/tmp/email-rules-sync.log`

## Usage

### View Sync Logs

```bash
tail -f /tmp/email-rules-sync.log
```

### Manual Sync

```bash
cd /home/timo/config-email/sync
npm start
```

### Check Current Cron Jobs

```bash
crontab -l
```

### Remove Cron Job

```bash
crontab -l | grep -v "email-rules-sync" | crontab -
```

## What Gets Generated

### 1. Sieve Scripts (Out-of-Office)

Location: `/home/timo/docker-mailserver/docker-data/dms/mail-data/{domain}/{user}/home/.dovecot.sieve`

Example for `support@qrmaster.net`:
```sieve
require ["vacation", "variables"];

# Auto-Reply / Out-of-Office
# Generated by Email Rules Sync System
# Last updated: 2025-12-27T12:00:00.000Z

if true {
  vacation
    :days 1
    :subject "Out of Office"
    "I am currently out of office and will respond when I return.";
}
```

### 2. Virtual Aliases (Forwarding)

Location: `/home/timo/docker-mailserver/docker-data/dms/config/postfix-virtual.cf`

Example:
```
# Virtual Aliases - Email Forwarding
# Generated by Email Rules Sync System
# Last updated: 2025-12-27T12:00:00.000Z

# Forwarding for support@qrmaster.net
support@qrmaster.net forward1@example.com,forward2@example.com
```

## DynamoDB Schema

The sync script expects this schema:

```javascript
{
  email_address: "support@qrmaster.net",  // Primary Key
  ooo_active: true,                        // Enable/disable auto-reply
  ooo_message: "I am out of office...",    // Auto-reply message
  ooo_content_type: "text",                // "text" or "html"
  forwards: ["user@example.com"],          // Array of forward addresses
  last_updated: "2025-12-27T12:00:00.000Z" // Timestamp
}
```

## Troubleshooting

### Script fails to connect to DynamoDB

Check AWS credentials in `.env`:
```bash
cat .env | grep AWS
```

### Sieve scripts not working

1. Check script was created:
   ```bash
   ls -la /home/timo/docker-mailserver/docker-data/dms/mail-data/qrmaster.net/support/home/
   ```

2. Check Dovecot logs:
   ```bash
   docker logs mailserver-new 2>&1 | grep -i sieve
   ```

### Forwarding not working

1. Check virtual aliases file:
   ```bash
   cat /home/timo/docker-mailserver/docker-data/dms/config/postfix-virtual.cf
   ```

2. Check Postfix logs:
   ```bash
   docker logs mailserver-new 2>&1 | grep -i virtual
   ```

3. Reload Postfix manually:
   ```bash
   docker exec mailserver-new postfix reload
   ```

## Architecture

```
Web UI (React)
    ↓
Backend API (Express)
    ↓
DynamoDB (email-rules)
    ↓
Sync Script (Node.js) ← You are here
    ↓
Mail Server (Dovecot + Postfix)
```

## Files

- `sync.js` - Main sync script
- `package.json` - Dependencies
- `.env` - Configuration
- `install-cron.sh` - Cron job installer
- `README.md` - This file

## Support

For issues, check:
1. Sync logs: `/tmp/email-rules-sync.log`
2. Mail server logs: `docker logs mailserver-new`
3. DynamoDB table: AWS Console → DynamoDB → email-rules