Send Emails using python.

sendmails.py

#!/usr/bin/env python
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from smtplib import SMTP
import smtplib


subject = 'Example header'
message = 'Subject: Happy Australia Day!\nHi Everyone! Happy Australia Day! Cheers, Julian'
file = # some file on your disk
sender = '' # xxx@gmail.com
sender_pw = '' # your gmail pw
targets = [''] # list of comma-seperated email addresses

# When you get authentification error you might need to allow less secure apps in gmail:
# https://stackoverflow.com/questions/26852128/smtpauthenticationerror-when-sending-mail-using-gmail-and-python

def send_mail_with_attach(sender, sender_pw, targets, subject, message, file = None):
    
    emaillist = [elem.strip().split(',') for elem in targets]
    
    msg = MIMEMultipart()
    msg['Subject'] = subject
    msg['From'] = sender #'xxx@gmail.com'
    msg['Reply-to'] = sender
    msg.preamble = 'Multipart message.\n'
    part = MIMEText(message)
    msg.attach(part)

    if file:
        part = MIMEApplication(open(str(file),"rb").read())
        part.add_header('Content-Disposition', 'attachment', filename=str(file))
        msg.attach(part)


    server = smtplib.SMTP("smtp.gmail.com:587")
    server.ehlo()
    server.starttls()
    server.login(sender, sender_pw)

    server.sendmail(msg['From'], emaillist , msg.as_string())
    print('Successfully send email to {} with attachement {}'.format(emaillist, file))
    
send_mail_with_attach(sender, sender_pw, targets, subject, message, file = file)
send_mail_with_attach(sender, sender_pw, targets, subject, message, file = None)