How do my recommenders submit their recommendation letters?

All applicants must submit two letters of recommendation. After you complete and submit your application, your recommenders will receive via email the electronic recommendation form along with instructions on how and when to submit them.  Note that recommenders will only receive the form AFTER you have submitted your application. Once you have done this, it is a good idea to confirm with your recommenders that they have received the form.

https://macaulay.cuny.edu/admissions/applying-to-macaulay/