Exchange 2010 Mailbox Auditing - Move operation is not getting logged.

Hi All,

We have got Exchange 2010 SP2 in our environment. I have configured mailbox auditing for a user by using cmdlet

Set-Mailbox -Identity user1 -auditenabled $true

I have explicitly assigned full mailbox permissions to user2 on user1 mailbox. When user2 logson to user1 mailbox and tries to move a mail item to some custom folder, logs are not getting generated. Also move is not getting logged for default folders as well.

Also log generation is very slow with around 24 hours delay. If i am performing any operation today on user1 mailbox, so next day only i will be able to see the logs.

Please provide your inputs, if somebody has faced this kind of issue with mailbox auditing.

Thanks in advance...