Managing mailboxes in Exchange Server 2007

All the credits to MSExchnage.org for the information:

• Managing mailboxes in Exchange Server 2007 (Part 1)
• Managing mailboxes in Exchange Server 2007 (Part 2)

Looking after different version of MS Exchange for years and then suddenly migrating to a new version, sometime simple system administration task can be time consuming, trying to figure out how things are performed under new environment.
Usually, any material which helps to simplify my day-to-day systems administration tasks and need to be referenced in future. I upload the information to my blog for my future references.