==== Required information ====
- iRedMail version: 0.8.4
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: Ubuntu 12.04
- Related log if you're reporting an issue:
====

So it seems our migration to roundcube is going pretty well. I now starting to copy the old Maildirs folder (from squirrelmail) of the old server to the roundcube Maildir folder. I just check the permissions and ownership to make they are correct in roundcube.

The old emails can be successfully viewed on roundcube webmail now. Even attachements are there. But I noticed that the quota for the user is still 0%.
Let's say user1 have 30MB in the old mailbox, I created his account in roundcube and allocated 50MB in Quota. Then I transferred his old mailbox to roundcube. When user1 logins, all mail are there (including attachments) but the Quota says he is using 0% of 50MB. Now I tried sending him an new email in roundcube just to test if the qutoa will increment. And it did increase to 1%
Seems like the Quota in Roundcube doesn't count the "old emails" when it computes for the quota.

Any idea how to fix this?

Thanks!