PST, Move Mailbox, and Single Instance Storage

Posted on 2009-02-09
Last Modified: 2012-05-06
I import a PST into an Exchange 2003 mailbox and break Single Instance Storage for those messages. Later, if I move this mailbox to an Exchange 2007 server, will SIS for these messages re-establish at all?
Question by:adramis
    LVL 11

    Accepted Solution

    No this will not re-establish the SIS .

    Read following ( this applies to E2K7 as well)
    LVL 58

    Assisted Solution


    In general once the SIS is broken it is gone for ever. Moving the mailbox between servers  will not re-establish SIS, since it was broken prior to the mailbox move.

    SIS will only remain when mailboxes are moved if it was present beforehand; this way, Exchange can simply migrate the SIS 'links' across.


    Featured Post

    The problems with reply email signatures

    Do you wish that you could place an email signature under a reply? Well, unfortunately, you can't. That great Exchange/Office 365 signature you've created will just appear at the bottom of an email chain. What a pain! Is there really no way to solve this? Well, there might be...

    Join & Write a Comment

    Resolve Outlook connectivity issues after moving mailbox to new Exchange 2016 server
    "Migrate" an SMTP relay receive connector to a new server using info from an old server.
    In this video we show how to create an Address List in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Organization >> Ad…
    The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager

    731 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    18 Experts available now in Live!

    Get 1:1 Help Now