Replies as comments: best way to strip original message

I’m sure others have thought about this problem. If I use Postie in conjunction with a post notifier, a user will receive an email when a post is published. If they reply to that email, Postie will treat that as a reply. However, it will also pull along whatever original text was in the email that went out.

I know there’s a pattern to remove sig files, but what about reply threads? It’s tricky because different clients format the ‘On datetime, sender wrote:’ differently. And if they’re not native English speakers, you have a whole other host of problems.

Anyway, if anyone has a good solution to this, Id like to hear it.