Add functionality to send mails to multiple recipients.

MAIL_FROM = "events@example.com"

MAIL_TO = "info@example.com"

MAIL_TO = "info@example.com" # For multiple recipients write them as a ["list", "of", "addresses"].

MAIL_SUBJECT = "[Events] Termine vom {{ date_min.date }} bis {{ date_max.date }}" # This is parsed as a Jinja2-template.

SMTP_HOST = "mail.example.com"

def send_mail(content):

    """Send out an email."""

    if isinstance(config.MAIL_TO, list):

        mail_to_list = config.MAIL_TO

    else:

        mail_to_list = [config.MAIL_TO]

    for mail_to in mail_to_list:

        msg = Message()

        msg.set_payload(content[0], "utf-8")

        msg["Subject"] = content[1]

        msg["From"] = config.MAIL_FROM

    msg["To"] = config.MAIL_TO

        msg["To"] = mail_to

        server = smtplib.SMTP(config.SMTP_HOST, config.SMTP_PORT)

        server.ehlo()

        server.starttls()

        server.ehlo()

        server.login(config.SMTP_USER, config.SMTP_PASS)

    server.sendmail(config.MAIL_FROM, config.MAIL_TO, msg.as_string())

        server.sendmail(config.MAIL_FROM, mail_to, msg.as_string())

        server.quit()

def main():