Changing all Exchange mailboxes to use database defaults for quota limits with PowerShell

Tue, 12 Oct 2010 16:38:03 +0000

Here’s an example of why I’ve come to love PowerShell. Under Exchange 2003, we set users’ mailbox quota limits per-user, since we initially set them ridiculously high (around 20 GB). The reason we did that was that prior to this year we actually didn’t have any quotas on user mailboxes and the average mailbox was about 9 GB. In preparation for moving Exchange to the datacenter (over our measly 5Mbps upload line) we introduced quotas and over the course of about 2 months gradually lowered the limits as people whittled away their old email until they were under the quota we had established (about 2.25 GB for the no-send limit – I forgot the rationale for that number – and 1.75 GB for the warning limit [the no-receive limit was set to about 40GB since I never wanted users to hit that limit]).

Usedatabasequotadefaults on Evan Hoffman

Changing all Exchange mailboxes to use database defaults for quota limits with PowerShell