Вы не действительно правильно отправляете свои электронные письма, используя asyncio. Вы должны использовать aiosmtplib
для выполнения асинхронных SMTP-вызовов, таких как connect
, starttls
, login
, et c. Посмотрите следующий пример, который я сократил из более сложной программы, которая обрабатывает вложения. Этот код отправляет два электронных письма асинхронно:
#!/usr/bin/env python3
import asyncio
import aiosmtplib
import sys
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
MAIL_PARAMS = {'TLS': True, 'host': 'xxxxxxxx', 'password': 'xxxxxxxx', 'user': 'xxxxxxxx', 'port': 587}
if sys.platform == 'win32':
loop = asyncio.get_event_loop()
if not loop.is_running() and not isinstance(loop, asyncio.ProactorEventLoop):
loop = asyncio.ProactorEventLoop()
asyncio.set_event_loop(loop)
async def send_mail_async(sender, to, subject, text, textType='plain', **params):
"""Send an outgoing email with the given parameters.
:param sender: From whom the email is being sent
:type sender: str
:param to: A list of recipient email addresses.
:type to: list
:param subject: The subject of the email.
:type subject: str
:param text: The text of the email.
:type text: str
:param textType: Mime subtype of text, defaults to 'plain' (can be 'html').
:type text: str
:param params: An optional set of parameters. (See below)
:type params; dict
Optional Parameters:
:cc: A list of Cc email addresses.
:bcc: A list of Bcc email addresses.
"""
# Default Parameters
cc = params.get("cc", [])
bcc = params.get("bcc", [])
mail_params = params.get("mail_params", MAIL_PARAMS)
# Prepare Message
msg = MIMEMultipart()
msg.preamble = subject
msg['Subject'] = subject
msg['From'] = sender
msg['To'] = ', '.join(to)
if len(cc): msg['Cc'] = ', '.join(cc)
if len(bcc): msg['Bcc'] = ', '.join(bcc)
msg.attach(MIMEText(text, textType, 'utf-8'))
# Contact SMTP server and send Message
host = mail_params.get('host', 'localhost')
isSSL = mail_params.get('SSL', False);
isTLS = mail_params.get('TLS', False);
port = mail_params.get('port', 465 if isSSL else 25)
smtp = aiosmtplib.SMTP(hostname=host, port=port, use_tls=isSSL)
await smtp.connect()
if isTLS:
await smtp.starttls()
if 'user' in mail_params:
await smtp.login(mail_params['user'], mail_params['password'])
await smtp.send_message(msg)
await smtp.quit()
if __name__ == "__main__":
email = "xxxxxxxx";
co1 = send_mail_async(email,
[email],
"Test 1",
'Test 1 Message',
textType="plain")
co2 = send_mail_async(email,
[email],
"Test 2",
'Test 2 Message',
textType="plain")
loop = asyncio.get_event_loop()
loop.run_until_complete(asyncio.gather(co1, co2))
loop.close()