Python: Send Email

gistfile1.py

def send_mail(sender='', recipients='', subject='', body='', server='localhost', port=25, username='', password=''):
    if len(sender) == 0:
        return {
            'error': True,
            'message': "Missing sender email address"
        }

    if len(recipients) == 0:
        return {
            'error': True,
            'message': "Missing recipient email address(es)"
        }

    if len(subject) == 0:
        return {
            'error': True,
            'message': "Missing email subject"
        }

    if len(body) == 0:
        return {
            'error': True,
            'message': "Missing email body"
        }

    body = "" + body + ""

    headers = ["From: " + sender,
               "Subject: " + subject,
               "To: " + recipients,
               "MIME-Version: 1.0",
               "Content-Type: text/html"]
    headers = "\r\n".join(headers)

    try:
        smtp_session = smtplib.SMTP(server, port)
        if port == 587 and len(username) > 0 and len(password) > 0:
            smtp_session.ehlo()
            smtp_session.starttls()
            smtp_session.ehlo
            smtp_session.login(username, password)

        smtp_session.sendmail(sender, recipients, headers + "\r\n\r\n" + body)
        smtp_session.close()
        return {
                'error': False,
                'message': "email sent successfully"
            }
    except Exception, e:
        raise