is there a way to autoarchive old emails (sent and inbox) in the exchange server?.

Exchange 2007 does not have an auto-archive component. You could configure Outlook to auto-archive the Inbox and Sent Items folders to a PST file? Or look at a 3rd party archiving solution such as Quest's or Symantec's.

Clarify: You want to AutoArchive users messages to exchange server, right? You can use Journaling feature, it can enable you to archive end-users message communication to specific place, either single user or all users on a same database: Journaling: Overview, Exchange Server 2007 journal rules

thanks. but I have a question. journaling feature copy all the incoming and outgoing mail to an especific mailbox, so It will use double disk space, right?.

Yes, itll cost more disk space for enabling this feature

Hi, Marianita, I assume your question has been answered, and I'd like to change the status to "Marked as answer", please feel free to post here if you have any update