On 5 Oct 2003 at 7:28, Frank Heckenbach wrote:
To add some context, Chuck wrote in 3F771998.851C2C9@yahoo.com in comp.lang.pascal.misc (not bounced to this list AFAIK, so I'm quoting it here):
Would it be possible to annotate the subject lines to indicate the source? Something like "[GPC] <original subject>".
I suppose you mean the `From:' header. Whereas the `Sender:' header should always be `gpc-owner@gnu.de'....
Indeed, filtering on:
Sender: gpc-owner@gnu.de
...reliably indicates GPC list mail.
In any case, this will *not* change the settings for all who are subscribed already (because we can't tell who explicitly wants them off).
Given that posts from current subscribers will not be prefixed, unless each subscriber changes his or her preference, prefix filtering will always be unreliable. Even electing to have prefixes added for new subscribers would seem to result in some posts having prefix characters and some posts not, again making prefix filtering unreliable.
Unless prefixing is forced on all subscribers -- new and current -- it will simply add "noise" to the subject lines of some list messages. For a workable solution, I'd recommend filtering on "Sender" and forgetting about prefixes.
-- Dave