Importing PST files in Exchange 2003.

Posted on 2005-05-14
Last Modified: 2008-01-09
Dear All,

I have an MDaemon email server that utilises PST files for users mailboxes. Is it possible to import the PST files into Exchange 2003 so my users can access their historical emails?


Question by:TCuk
    LVL 15

    Expert Comment

    Yes, There are different ways to do it.
    how many users are you talking about?

    Author Comment

    Thanks for the prompt response.

    I only have about 40 users with an average mailbox size of 300mb. But I do have a few people with PST’s of about 800mb.

    Thanks in advance,

    LVL 15

    Accepted Solution

    You must be running Exchange Enterprise.

    Remember to increase the size limit on users mailbox or you will get errors. Make sure that the users mailboxes support more than 800 MB

    These are the tools you will need to merge .PST files to exchange 2003:

    Download this tool from MS

    Tool ---->

    Documentation ---->;en-us;259688

    This part is what you need:

    Run the Exmerge utility, and then click Next.

    1. Click Two-Step Merge, and then click Step 2: Merge data from Personal Folders.

    2. Type your server name, click Options, and then verify that the User Messages and Folders, Associated Folder Messages, and Folder Permissions check boxes are selected on the Data tab.

    3. Leave all of the default setting on the other tabs, click OK, and then click Next.

    4. All of the mailboxes from the server that you specified appear in the list. If they do not appear in the list, cancel out of the process, and then refer to step 3 because someone did not receive the initial message.

    5. Click Select All, verify that all of the users are selected, and then click Next.

    6. Point the directory to the location of the .pst files from step 1 of the migration, and then click Next to run the process.

    After the Exmerge process is finished, your users may be asked if they want the shortcuts to be changed when they log on after the data is brought back in. They should click Yes because the data has been brought back into a new Priv.edb database and all of the tables have been regenerated.

    PS The information store on exchange can only grow to 16 GIG, Fron your post 300 MB average times 40 users is 12 GIG.
    That is why I said you must be running Exchange Enterprise.

    Good luck!

    LVL 7

    Expert Comment

    Hmm - are those PST files standard Outlook PST files? Were you using the Outlook Connector for MDaemon? If so you can leave them as PST files and simply open them in each users version of Outlook. From then on the users will have new mail delivered to the exchange server but will retain the old mail in local or, preferably, networked PST files. I wouldn't import them back into Exchange as you're just cluttering up a nice shiny new exchange server with all the user's old junk. Also, you won't have to go to the eEnterprise versiona nd you'll save a wad of cash!

    So, I'd just stick them in each user's personal network share and let Outlook open them from there.

    Author Comment

    The PST’s are generic Outlook generated files. We have not been using the MDaemon connector you mentioned.

    I guess, the best idea would be to insist everybody does stringent “house keeping” before the new server / import is carried out.

    Thanks again,


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