freepost-x/freepost/mail.py

from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from freepost import settings
from subprocess import Popen, PIPE

def send(to_address, subject, body):
    email_message            = MIMEText(body)
    email_message['From']    = settings['email']['from']
    email_message['To']      = to_address
    email_message['Subject'] = subject
    
    # Open pipe to sendmail
    child_process = Popen([ settings['email']['sendmail_path'], "-t" ], stdin=PIPE)
    child_process.communicate(email_message.as_bytes())