Send mail to multiple recipients

sendmail-multiple-recipients

import smtplib
import sys, os
from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText

msg = MIMEMultipart()

msg['From'] = 'my.mail@mail.com'

recipients = os.environ['MAILTO'].split(',')

msg['To'] = ", ".join(recipients)
msg['Subject'] = os.environ['MAILSUBJECT']
message = os.environ['MAILMSG']
msg.attach(MIMEText(message))

mailserver = smtplib.SMTP('relay-smtp.mailrelay.com',25)
mailserver.ehlo()

mailserver.sendmail('my.mail@mail.com', recipients, msg.as_string())

mailserver.quit()