>>> "EB" == Emanuel Berg <moasenwood@zoho.eu> writes:

> Uwe Brauer wrote:
>> by its ID and group name

> Maybe this is a stupid question but... from where do
> you get the ID and group name in the first place?
> Local files on your disk or some web archive that
> shows it?

That is done by the first function I posted, emacs/gnus extracts this
information from the message header