send_email.py

from datetime import date
import json
import smtplib

def is_today(date_string):
  # I assume that the dates are in mm/dd format
  month, day = date_string.split('/')
  return date.today().month == int(month) and date.today().day == int(day)

def send_email(receiver, config):
  def construct_address():
	if '@' in receiver:
	  return receiver
	else:
	  return receiver + config['receiver_domain_name']
  server = smtplib.SMTP(config['mail_server'])
  server.starttls()
  server.login(config['username'], config['password'])
  server.sendmail(config['from_email'], construct_address(), 'Subject: %s\n\n%s' % (config['msg_subject'], config['msg_text']))
  server.quit()

install_dir = '/usr/local/bin/send_email/'
config = json.loads(open('%sCONFIG.private' % (install_dir)).read())
schedule_file = open(config['email_schedule'])

for line in schedule_file.read().splitlines():
  date_string, receiver = line.split('\t')
  if is_today(date_string):
    send_email(receiver, config)
    print 'Sent email to %s' % (receiver)