Thanks, Stefano.
I'm using the pro version. I fount the reports extension.
If I would add all who did nothing on a single newslettter to a new list,
and do this again with a second newsletter,
and from a third:
Is a recipient who did nothing on all three newsletters only once in the new list or three times?
And what is with the list he was before? Is he still in it or just in the new list?
Thanks.
der Karsten