Comments coming from rt@webdomain.com

Thats strange, with the example config I posted above I can see an outgoing reply email having these headers:

Reply-To: rt-comment@example.com
From: "Enoch Root" <rt-comment@example.com>

And a comment:

From: "Enoch Root" <rt-comment@example.com>
Reply-To: rt-comment@example.com