micromail

Tiny SMTP client for Micropython. See examples for usage.

Inspired from shawwwn/uMail.

Installation

Manual

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

MIP

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

Documentation

Class MicromailClient

• class micromail.MicromailClient(host: str, port: int = 0, 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: str | bytes)

  Write data of type bytearray on the server.

• MicromailClient.send_command(*cmd: str | bytes, code: int | list[int] = []) -> tuple[int, list[str]]

  Send command to the SMTP server; returns status code and list of response lines.

• MicromailClient.read_res(cmd: str = "", code: int | list[int] = []) -> tuple[int, list[str]]

  Read response from the SMTP server; returns status code and list of response lines.

• MicromailClient.ehlo() -> list[str]

  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: str | None = None)

  Create a new email; sender defaults to username.

• MicromailClient.headers(headers: dict[str, str])

  Define email headers; supported headers are date (str, defaults to current date), from (defaults to new_message sender), to (defaults to new_message to), subject (str).

• MicromailClient.write_line(content: str)

  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) -> str

  Return date formatted as email date string.

Exceptions

• Error

  Standard module error.

• NoSocketError

  Raised when an operation on the socket is asked but the client is not connected to any socket.

• SMTPError(cmd: str, code: int, message: str)

  Raised when an unexpected SMTP response code is received.