I know that we can add comments to ticket by emailing them. I've done this, and it works for us. My issue is, the comment only gets added if the jira@email-address is in the TO or CC. If I put it in the BCC the comment doesn't get added.
The use case: I'd like to send an email status update to customers, and have it logged in the Jira ticket, but I want the JIRA@email-address hidden in the BCC so if the customer replies it does NOT get added as a comments.