Since we've started using Redmine 2.2.x we've made heavy use of the Private comment feature to add notes and private discussion points to issues via the web interface; this works well. We can tell when looking at the issue that a comment is private and when replying to it that we need to make our comments private as well.

Unfortunately when that private comment generates an email to those with permission to see the private comment, it is not so obvious when looking at the email that it is a private comment.

So, because there are text-only and HTML options for emails generated by the system, could the outgoing emails be marked up in some manner so the private/non-private status of a comment be easily visible?

Thanks.