Aiosmtplib is an implementation of the python stdlib smtplib using asyncio, for use in asynchronous applications.

Basic usage:

import asyncio
import aiosmtplib
loop = asyncio.get_event_loop()
smtp = aiosmtplib.SMTP(hostname='localhost', port=25, loop=loop)

@asyncio.coroutine
def send_a_message():
    sender = 'root@localhost'
    recipient = 'somebody@localhost'
    message = "Hello World"
    yield from smtp.sendmail(sender, [recipient], message)

asyncio.async(send_a_message())
loop.run_forever()

Use an instance of the SMTP class to connect to a server. Note that if the event loop used to initialize the class is not currently running, it will be started in order to connect.

Use SMTP.sendmail to send raw messages. The method signature is the same as for standard smtplib.

Use SMTP.send_message to send email.message.Message objects. The method signature is the same as for standard smtplib.