title: Schedule Mail batch by Rails in Cloud Foundry
body: <p>I want to send email batch at specific time like CRON.</p>
  
  <p>I think whenever gem (<a href="https://github.com/javan/whenever" rel="nofollow noreferrer">https://github.com/javan/whenever</a>) is not to fit in Cloud Foundry Environment. Because Cloud Foundry can't use crontab.</p>
  
  <p>Please inform me what options are available to me.</p>