I finally set up an email server for aidanmontare.net. It took two days, but I finally realized that I had set the certificate path incorrectly in Postfix, and was able to send an receive a bunch of test messages. Now I can use my own email server as contact information.
I followed the guide from my hosting provider to create a server Notes on my build process (though not as thorough or customized as my web server notes) are available here.
Now anyone who wishes to contact me can do so by following the instructions at the contact page.