# micromail

![](./logo.svg)

Tiny SMTP client for Micropython. See [examples](examples) for usage.

Inspired from [shawwwn/uMail](https://github.com/shawwwn/uMail).

## Installation

### Manual
Copy the `micromail.py` file to your device. You will need to install the `datetime` library as well.

### MIP
```python
>>> import mip
>>> mip.install("https://code.edgarpierre.fr/edpibu/micromail/releases/download/latest/")
```

## Documentation

### Class MicromailClient

`class micromail.MicromailClient(host: str, port: int, ssl: bool=False, starttls: bool=False)`
: Create a new SMTP client.

`MicromailClient.connect()`
: Establish a connection to the SMTP server. The connection is kept alive until `MicromailClient.quit()` is called.

`MicromailClient.login(username: str, password: str)`
: Login to the SMTP server with the provided username and password. `PLAIN` and `LOGIN` authentication methods are currently supported.

`MicromailClient.write(data: bytearray)`
: Write `data` of type `bytearray` on the server.

`MicromailClient.send_command(*cmd: bytearray) -> code: bytearray, response: list[bytearray]`
: Send command to the SMTP server; returns status code and response.

`MicromailClient.ehlo() -> res: list[bytearray]`
: Send SMTP EHLO command to the server and return response.

`MicromailClient.starttls()`
: Send SMTP STARTTLS command and enable SSL on socket.

`MicromailClient.new_message(to: str|list[str], sender: None|str=None)`
: Create a new email; sender defaults to username.

`MicromailClient.headers(headers:dict={})`
: Define email headers; supported headers are `date` (`str|datetime`, defaults to `datetime.now()`), `from` (`str`, defaults to `new_message` `sender`), `to` (`str|list[str]`, defaults to `new_message` `to`), `subject` (`str`).

`MicromailClient.write_line(content:str|bytearray)`
: Write message line; `\r\n` is appended to `content`.

`MicromailClient.send()`
: Send current email.

`MicromailClient.quit()`
: Quit the SMTP server and disconnect from socket.

### Functions

`format_date(date: datetime)`
: Return date formatted as email date string.