Where can I configure mail quotas in Lion Server?

Question

One (minor) problem for me, after upgrading from SnowLeopard Server to Lion Server is the fact, that I can't figure out where to administer the mail quotas. So far I have just managed to find the "Server Admin". Here, under Mail -> Maintenance I can see the quotas and under Mail->Settings->Quotas I can enable quota warnings and edit them. But I can't find a place to configure individual quotas. The quota settings from SnowLeopard server have been migrated and are still in place. But how should I change them. It used to be in WorkgroupManager. But in WorkgroupManager this item is gone.
Many thanks for your replies.

Answer 1

Followng up a bit,
In looking into OD records on my Snow Leopard Server via the Inspector in WGM, I see the following attribute for one of my users for whom I've set a 1024mb mail quota.
Name:
MailAttriute
Value:
<?xml version="1.0" encoding="UTF-8"?>
<dict>
          <key>kAPOPRequired</key>
          <string>APOPNotRequired</string>
          <key>kAltMailStoreLoc</key>
          <string></string>
          <key>kAttributeVersion</key>
          <string>Apple Mail 1.0</string>
          <key>kAutoForwardValue</key>
          <string></string>
          <key>kIMAPLoginState</key>
          <string>IMAPAllowed</string>
          <key>kMailAccountLocation</key>
          <string>[redacted].[redacted].org</string>
          <key>kMailAccountState</key>
          <string>Enabled</string>
          <key>kPOP3LoginState</key>
          <string>POP3Allowed</string>
          <key>kUserDiskQuota</key>
          <string>1024</string>
</dict>
I'm wondering if manually entering this attribute, and an XML value with at least the kUserDiskQuota key included will be all I need to do to implement per-user quotas in Lion Server.
If I get time, I will test and report back.