There are a few ways to fix this problem:First thing to check is to ensure the existing email address is correct. Check for typos or other mistakes first. If the email address is indeed incorrect, follow the steps below to change the email address.Use a different email address for your recommender. Follow the steps below to change the email address.Contact your recommender directly and ask they submit their letter of recommendation directly to the department contact (listed on the department's website). Your department contact will work with the recommender to gather the necessary information for your application.