How many emails do I really have in my mailbox ?

[Francis Moreau]

Hello

Today I was suprised by what Gnus proposed to me when I tried to enter
in my mail box. It asked:

      How many articles from nnfolder:mail.inbox (default 686):

So the default number looks really high and no I can't find so many
emails in this group: after entering I tried to display old, expunge
mail articles but Gnus showed only 64 articles.

What am I missing again ?

Thanks for any tips.

Francis