how to know the last message number?

prx <[email protected]> Fri, 10 May 2024 14:24:00 +0200

Newsgroups	org.mlmmj.mlmmj
Message-ID	<[email protected]>

Hello,

Do you know if there is a way to know how many messages a list has?
My intention is to white a script then to retriev all previous messages, from latest to 0.

Regards.

prx