Good day everyone,

We're planning to migrate our zimbra Community Edition deplyoment from the current server to a new server, and to switch from 32-bit architecture to a 64-bit one, and grab the latest verison of 64-bit zimbra collaboration suite.

We are currently using 32-bit CentOS 5.4 operating system. We are going to switch to CentOS 6, 64-bit.

The problem we are having is the following:
Our current installation folder which is /opt/zimbra, is pretty huge (94 GB). We asked each and every user to remove their mails which are not needed (most of them are using iMAP), having in mind that this way we can reduce the folder size and make migration and backup easier.

We closed unneeded accoutns, removed all mails from Inboxes, then I tried to reindex mailbox for these accounts form the zimbra admin console.

Theoretically, by now we should have freed up nearly 15 GB of space (according to message quotas shown in zimbra admin for these accounts), but in fact the zimbra folder size remains the same.

Can we do something to reduce its size? Are the removed e-mails still there? Is there any reindexing we might need? Also tried restarting zimbra, but the folder size remains. Please advice...

Thank you, and I'm looking forward for your prompt reply,