Didier Verna <didier@xemacs.org> writes:

> However, now that I switched most of my subscriptions to gmail, it seems
> that I don't get the messages from the list anymore -- only the one
> archived in the group by Gnus.
>
> Am I correct in assuming that gmail checks for duplicate messages by
> Message-Id or so ? If so, that's annoying.

I don't know whether that's the cause, but it is indeed
irritating. Personally I get that behaviour on about half the groups I
subscribe to. It seems others do too:

http://article.gmane.org/gmane.comp.mathematics.maxima.general/20758/match=gmail

Rupert