From: Nicolas Noble (Pixel@the-babel-tower.nobis-crew.org)
Date: Thu Mar 29 2001 - 14:03:24 CST
> subject line to start with "BUG FIXED:". Hypermail does not thread such
> messages if the reply is done using the web interface. Furthermore, it
> does thread messages with the same subject line, even if they are
> unrelated. Maybe we are just abusing Hypermail for something it is not
> meant for...
Verify if the 'In-Reply-To:' header is correctly set from your web
site. This is THIS header that is the key to the correct threading. I had
the same problem before and this was the solution: this header was not set
correctly.