simple-smtp-sender 0.2.0

A Simple SMTP Email Sender with the support of sync or async sending. Powered by PyO3

simple_smtp_sender

A Simple SMTP Email Sender with the support of sync or async sending. Powered by powered by Rust, lettre and PyO3.

Overview

This project provides a Python extension module implemented in Rust for sending emails via SMTP, including support for attachments, CC, and BCC. There are methods for both synchronous and asynchronous sending. It leverages the performance and safety of Rust, exposes a convenient Python API, and is built using PyO3 and lettre. The module is compatible with Python 3.10 and above.

Features

• Send emails via SMTP synchronously or asynchronously from Python
• Support HTML email contents
• Attach files to emails
• Support for CC and BCC
• Secure authentication
• Easy configuration via Python class

Installation

from PyPI

pip install simple_smtp_sender

from source (requires Rust toolchain and maturin)

git clone https://github.com/guangyu-he/simple_smtp_sender.git
cd simple_smtp_sender
# prepare venv and maturin if needed
maturin build

Requirements

• Python >= 3.10
• Rust toolchain (for building)

Usage

from simple_smtp_sender import EmailConfig, send_email, async_send_email

config = EmailConfig(
    server="smtp.example.com",
    sender_email="[e-mail]",
    username="your_username",
    password="your_password",
)

# Synchronous send (blocking)
send_email(
    config,
    recipient=["[e-mail]"],
    subject="Test Email",
    body="Hello from Rust!",
)

# With attachment, CC, and BCC:
send_email(
    config,
    recipient=["[e-mail]"],
    subject="With Attachment",
    body="See attached file.",
    cc=["[e-mail]"],
    bcc=["[e-mail]"],
    attachment="/path/to/file.pdf",
)

# Asynchronous send (non-blocking)
import asyncio


async def main():
    await async_send_email(
        config,
        recipient=["[e-mail]"],
        subject="Async Email",
        body="Sent asynchronously!",
    )


asyncio.run(main())

API

EmailConfig

Configuration class for SMTP server and credentials.

• server: SMTP server URL
• sender_email: Sender's email address
• username: SMTP username
• password: SMTP password

send_email(config, recipient, subject, body, cc=None, bcc=None, attachment=None)

Sends an email synchronously (blocking) using the provided configuration.

• config: EmailConfig instance
• recipient: List of recipient email(s)
• subject: Email subject
• body: Email body
• cc: List of CC recipients (optional)
• bcc: List of BCC recipients (optional)
• attachment: Path to file to attach (optional)

async_send_email(config, recipient, subject, body, cc=None, bcc=None, attachment=None)

Sends an email asynchronously (non-blocking, returns an awaitable).

• config: EmailConfig instance
• recipient: List of recipient email(s)
• subject: Email subject
• body: Email body
• cc: List of CC recipients (optional)
• bcc: List of BCC recipients (optional)
• attachment: Path to file to attach (optional)

Development

• Rust dependencies are managed in Cargo.toml.
• Python build configuration is in pyproject.toml.
• Main Rust logic in src/.

License

MIT