Re: header inventory

Laird Breyer wrote:
> Perhaps it makes sense for the various filter writers and sysadmins
> on this list to offer an inventory of the various modifications
> each of their systems add to a message, so we can see where people
> agree and where they differ, and get to know patterns of use.

POPFile does the following:

1. Adds X-Text-Classification: <class>

where <class> is a user defined name for the classification given to 
this message.  For example, a user could have work, personal, amazon, 
spam, etc.

2. Adds X-POPFile-Link: <url>

Since POPFile has a web based UI it also embeds a URL that links to that 
specific email in the UI.  This is used so that users can jump straight 
to the message in question to reclassify it if POPFile made a mistake.

3. Modifies Subject: by adding [<class>]

Since Outlook Express cannot filter on arbitrary headers there's the 
option to change the Subject line by inserting the classification (same 
as X-Text-Classification) between [].  e.g. Subject: Mortgage Enlargers!
would become Subject: [spam] Mortgage Enlargers.

4. POPFile strips its own headers

If POPFile see the XTC or XPL headers in an incoming mail it strips them 
out.

John.