You aren't meant to but there is a way.
You request the evaluation in AACOMAS, in the "evaluator email" box you write out the custom Interfolio email that is given to you when you click on the letter in your dossier. You don't write the evaluator's actual email address. You waive your right to read it etc. Supposedly, Interfolio handles the rest and will send the dossier letter to your AACOMAS file.