partial receive problem in kmail 1.13.5

[Πρεκατές Αλέξανδρος <aprekates@gmail.com>]

In debian squeeze  , after  10 days absent , kmail downloads from gmail some 
mails (during a day?) and then stops.
If a tell it again , it'll receive a next batch of emails and so on. 
Why is that?


aprekates.