Sending email with plain python

email_sender.py

import os
import smtplib
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText


def main():

  sender = 'sender@gmail.com'
  sender_pwd = '********'

  smtp_server = 'smtp.gmail.com'

  recievers = [ 'user1@gmail.com', 'user2@gmail.com']

  message = MIMEMultipart()
  message['Subject'] = 'The email subject'
  message['From'] = sender
  message['To'] = ''
  message['Cc'] = ''
  message['Bcc'] = ','.join(recievers)

  mail_body = '''
Hi there,

This is the email body.
Test smtp
  '''
  message.attach(MIMEText(mail_body, 'plain', 'utf-8'))
  attach_file_path = './the-attach-file.txt'
  attach_file = open(attach_file_path, 'rb')
  attach_part = MIMEApplication(attach_file.read(), Name=os.path.basename(attach_file_path))
  attach_part['Content-Disposition'] = 'attachment: filename="%s"' % \
                                        os.path.basename(attach_file_path)
  attach_file.close()
  message.attach(attach_part)

  try:
    smtp = smtplib.SMTP_SSL()
    smtp.connect(smtp_server)

    smtp.login(sender, sender_pwd)
    smtp.sendmail(sender, recievers, message.as_string())
    smtp.close()
  except Exception as e:
    print(e)
  
if __name__ == '__main__':
  main()