how to increase the mailbox size from default 500 MBto 1GB in exchange server2007 from one user.

Start the Exchange Management Console. In the console tree, expand Recipient Configuration, and then click Mailbox. In the result pane, select the mailbox user for whom you want to configure storage quotas. In the action pane, under the mailbox user's name, click Properties. In <Mailbox User Name> Properties, click the Mailbox Settings tab. Click Storage Quotas, and then click Properties. In Storage Quotas, clear the Use mailbox database defaults check box, and then complete the following fields: Issue warning at (KB) - Change this to972800(950 MB) Prohibit send at (KB)-Change this to1048576 (1 GB) Prohibit send and receive at (KB) - Leave it empty. Click OK to return to the Mailbox Settings tab. Click OK. Amit Tank | MVP Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com