Here are the step-by-step instructions on how to copy an already sent newsletter in jNews, and then send it again:

  1. Login to admin.
  2. Go to: Components > jNews > Newsletters
  3. Select the newsletter (already sent) that you want to send again.
  4. Hit the "Copy" button on the top right corner of the page. This will make a copy of the newsletter.
  5. Edit the newly copied newsletter, make the changes (if any), set the set, time, lists and sender details, and save it

This will send the newsletter at the date and time that you set.