hi i wanted to know if somebody knows how to enable full mailbox access(to all mailboxes) for aspecific user(in this case domain admin user,same as it was in ex 2003) thanks

Hi, Do you mean you want to do this on Exchange 2007 or 2003? Cheers Nathan

For Exchange 2003 To grant your administrative account access through Exchange System Manager to all mailboxes in a single database regardless of inherited denials: 1. Start Exchange System Manager, and then locate the database you want to have full mailbox access to. 2. Open the properties of this object, and then click the Security tab. 3. Grant your account full explicit permissions on the object, including Receive As permissions. After you have made this change, you may still see unavailable Deny and Allow permissions assigned to your account. The unavailable permissions indicate that by inheritance you have been denied permission, but that you have inherited permissions at this level. In the Windows permissions model, explicitly granted permissions override inherited permissions. Note that an explicit Allow at a lower level permission overrides an explicit Deny from a higher level permission only on the single object where the override is set, not on that object's child objects. This prevents you from granting yourself permissions on a server to gain access to each database; you must grant permissions on databases individually.After you change permissions, you may have to log off and log back on. Microsoft also recommends that you stop and restart all Exchange services. If you have multiple domain controllers in the forest, you may also have to wait for directory replication to complete. For more information, click the following article number to view the article in the Microsoft Knowledge Base: How to assign service account access to all mailboxes in Exchange Server 2003 Security Tab Not Available on All Objects in System Manager For Exchange 2007 click the following article link: How to Allow Mailbox Access How to Grant Send As Permissions for a Mailbox.