import os

import smtplib

from email.message import EmailMessage

EMAIL_ID = os.environ.get('USER_ID') #Use the Email Id as an environment variable

EMAIL_PASSWORD = os.environ.get('USER_PASS') #Use the Email password as an environment variable

mails = ['receiver1@gmail.com','receiver2@gmail.com','receiver3@gmail.com']

msg = EmailMessage()

msg['Subject'] = 'Please check the PDF attached'

msg['From'] = EMAIL_ID

msg['To'] = ','.join(mails)

msg.set_content('Check the PDF shared,')

pdf = ['1.pdf'] #Use same directory in which .py is saved, or give the full path of PDF

for file in pdf:

with open(file,'rb') as x:

data = x.read()

file_name = x.name

msg.add_attachment(data,maintype='application',subtype='octet-stream',filename= file_name)

with smtplib.SMTP_SSL('smtp.gmail.com',465) as smtp:

smtp.login(EMAIL_ID,EMAIL_PASSWORD)

smtp.send_message(msg)