[imp] imp quota value error

[Dario -Cdj-]

Hello,
i'm using IMP H3 (4.1.3) on a qmail+vpopmail+courier+sql+etc.etc.

On some mailbox the quota value is not true.

For ex. :

user1 at domain.com

qmailadmin : 0.07 /  100.00
imp : Situazione Quota: 64,55MB / 100,00MB (64,55%)
"du" of maildir : less than 200k

user2 at domain.com

qmailadmin : 48.43 /  100.00
imp : Situazione Quota: 48,43MB / 100,00MB (48,43%)

and so on...

Please help me, it's very important.

Thanks
Dario