Using Ad Hoc Filters in Infinite Campus you can create a file that contains all of the email addresses for students in your classes. Follow the directions in the video to create a file that you can then use to create email lists, use scripts like doctopus or gclassfolders or any other tool where you need the email lists.
YOUTUBE VIDEO
After you get the file, you will need to sort the columns to separate it into different classes and sections. I would sort the section number first and then sort the course number. You can then copy the sections you need and paste into another spreadsheet for each section. If you have any more questions, make sure to ask them.
Donovanscience 