Hi Using Exchange Server 2003 SP1 in Windows 2003 domain. How do I give one particular user - not a domain administrator just a normal user account, access to all users mailboxes, especially their calendars to insert and delete appointments. This user does not have a mailbox. This account is used by an HR application to update their calendars with leave information. Thanks Rajia Email disclaimer: This email and any attachments are confidential. If you are not the intended recipient, do not copy, disclose or use the contents in any way. If you receive this message in error, please let us know by return email and then destroy the message. Environment Bay of Plenty is not responsible for any changes made to this message and/or any attachments after sending. ****************************************************** This e-mail has been checked for viruses and no viruses were detected.