[OT] Thread hi-jacking - How to avoid

[Mark Thomas <ma...@apache.org>]

All,

There have been a number of unintentional thread hi-jackings recently 
and I wanted to clarify why it seems to be increasing, how it can happen 
and how to avoid it.

Why the increase?
=================
I don't think there has been an increase. What has increased is the use 
of good thread aware mail clients (eg Thunderbird) that base thread 
detection on the "Message-ID" and "References" headers rather than just 
matching subject lines.

How it can happen
=================
Rather than create a new message, you reply to an old one and change the 
subject.

How to avoid it
===============
Simple really. To create a new message do exactly that, create a new 
message. Don't reply to an old one and change the subject. ;)

In summary, only use the reply button when you want to reply.

As always, if anyone expereinces problems with the list do let the 
owners know.

Mark
tomcat-user-owner@jakarta.apache.org

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