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1. Create `smtp2tg.toml` (see `smtp2tg.toml.example` for reference).
2. Get a Telegram Bot Token from [@BotFather](https://t.me/BotFather).
3. Get your chat ID (use [@getidsbot](https://t.me/getidsbot) or debug mode in Telegram client).
### Example configuration
```toml
api_key = "123456789ABCdefGHIjklMNOpq"
api_key = "replace-with-your-telegram-bot-token"
api_gateway = "https://api.telegram.org"
listen_on = "127.0.0.1:1025"
unknown = "relay"
fields = ["date", "from", "subject"]
domains = ["example.com", "localhost"]
default = 0
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### Run
```bash
./smtp2tg -c /path/to/smtp2tg.toml
```
### CLI arguments
| Argument | Description | Example |
|---------------|---------------------------|-----------------------|
| `-h`, `--help` | Show help | `smtp2tg --help` |
| `-c`, `--config` | Path to config file | `smtp2tg -c config.toml` |
---
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## How it works
1. A client (e.g., Postfix) sends an email to `listen_on` (e.g., `127.0.0.1:1025`).
2. smtp2tg parses the email and converts it to a Telegram message.
3. The message is sent to the specified chat (or `default` if address is unknown).
### Example: Email → Telegram
**Incoming email:**
```
```text
From: user@example.com
To: admin@example.com
Subject: Test
Hello, world!
```
**Telegram message:**
```
```html
<blockquote expandable>
<u><i>Subject:</i></u> <code>Test</code>
<u><i>From:</i></u> <code>user@example.com</code>
<u><i>Date:</i></u> <code>Mon, 01 Jan 2024 12:00:00 +0000</code>
</blockquote>
<pre>Hello, world!</pre>
```
---
## Links
- **Original repository**: [http://fs.b1t.name/smtp2tg](http://fs.b1t.name/smtp2tg)
- **GitHub Mirror**: [https://github.com/kworr/smtp2tg](https://github.com/kworr/smtp2tg)
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