Does New-MailboxRestoreRequest create duplicate mail items if ran more than once

Posted on 2014-08-26
Last Modified: 2014-09-02
This one should be really simple to anyone that knows. We had a failure on our exchange (no failover cluster). I had to move it to another box (a vm now thank god). So I brought the users back online in a blank db, and proceeded to mount and restore the old stuff back. However we are still missing the emails from backup to crash. I've since been able to recover the data from the crash time.

Question is now if I run another restore request from the newer data, will it create duplicates. I would think not, but just wanted to be sure. I could always filter with a date time stamp, but would rather just run it full since time is not of the essence and I'd rather get it all back.
Question by:bhieb
    LVL 9

    Expert Comment


    I hope this clarifies the question you have.

    Restoring a Mailbox from an Exchange Server 2013 Recovery Database

    Hope that helps :)

    Author Comment

    Not really, those are the steps for restoring, which I've done. My questions is if I run another full restore from a different recovery DB with more data, will it duplicate items?


    I restored Bob's email from beginning of time to 8/23. Now I've recovered the missing data gap between 8/23 and 8/24. So if I mount it as a recoveryDB and do another restore will Bob see duplicates since it contains not only data from 8/23-8/24 but all Bob's old stuff from beginning of time which was previously restored. I don't want Bob to see 2 of every message pre 8/23.

    Accepted Solution

    FYI it doesn't duplicate. I ran it twice on a test mailbox no dupes.

    Author Closing Comment

    No better answer

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Do email signature updates give you a headache?

    Do you feel like you are constantly making changes to email signatures? Are the images not formatting how you want them to? Want high-quality HTML signatures on all devices, including on mobiles and Macs? Then, let Exclaimer solve all your email signature problems today.

    Create high volume marketing opportunities using email signatures with these top 10 DOs and DON'Ts of email signature marketing.
    In this video we show how to create a User Mailbox 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 Recipients >> Mailb…
    In this video we show how to create a Resource Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: Navigate to the Recipients >> Resources tab.: "Recipients" is our default selection …

    761 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

    8 Experts available now in Live!

    Get 1:1 Help Now