If you use gmail, you can append a label after your normal username that can be easily filtered.
For instance, if your email is
[email protected], you can change your contact in AMCAS (and your secondaries) to
[email protected]. All your med school emails will be sent to
[email protected]. The trick is, anything after the + doesn't matter in terms of where it gets sent. You still see all the emails in your
[email protected] inbox. But now you can set up a filter to automatically label and not send to spam all emails sent to
[email protected]