# lettre

**Lettre is a mailer library for Rust.**

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Useful links:

* [User documentation](http://lettre.at/)
* [API documentation](https://docs.rs/lettre/)
* [Changelog](https://github.com/lettre/lettre/blob/master/CHANGELOG.md)

---

## Features

Lettre provides the following features:

* Multiple transport methods
* Unicode support (for email content and addresses)
* Secure delivery with SMTP using encryption and authentication
* Easy email builders

## Example

This library requires Rust 1.36 or newer.
To use this library, add the following to your `Cargo.toml`:

```toml
[dependencies]
lettre = "0.9"
```

```rust,no_run
extern crate lettre;

use lettre::{SmtpClient, Transport, Email, mime::TEXT_PLAIN};
use std::path::Path;

fn main() {
    let email = Email::builder()
        // Addresses can be specified by the tuple (email, alias)
        .to(("user@example.org", "Firstname Lastname"))
        // ... or by an address only
        .from("user@example.com")
        .subject("Hi, Hello world")
        .text("Hello world.")
        .attachment_from_file(Path::new("Cargo.toml"), None, &TEXT_PLAIN)
        .unwrap()
        .build()
        .unwrap();

    // Open a local connection on port 25
    let mut mailer = SmtpClient::new_unencrypted_localhost().unwrap().transport();
    // Send the email
    let result = mailer.send(email);

    if result.is_ok() {
        println!("Email sent");
    } else {
        println!("Could not send email: {:?}", result);
    }

    assert!(result.is_ok());
}
```

## Testing

The `lettre` tests require an open mail server listening locally on port 2525 and the `sendmail` command.

## Code of conduct

Anyone who interacts with Lettre in any space, including but not limited to
this GitHub repository, must follow our [code of conduct](https://github.com/lettre/lettre/blob/master/CODE_OF_CONDUCT.md).

## License

This program is distributed under the terms of the MIT license.

See [LICENSE](./LICENSE) for details.