I am trying to create a feature within my application to receive
product data including an image attachment via inbound email.
Can someone point me to a tutorial or other document online that will
help out with this. I have started hammering at Google, but was
hoping someone could provide a link.
Basically, you can have your email server (say, Postfix) "deliver" the email message to a command like:
/srv/www/rails/current/script/runner ImageMailer.receive(STDIN.read)
Looks like the TMail library that ActionMailer uses has an API for attachments, so you'll want to look there, too.