How to save email to .pst instead of .ost?

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How to save email to .pst instead of .ost?

Postby NormanDuncan » Mon Jun 13, 2016 7:29 am

We are getting ready to migrate some email users to Office 365 from a 3rd party email host. They use outlook 2010 to access their email. I know how to export to a .pst file, however he wants me to configure the users to automatically start saving to a .pst file so that way it is ready to import when we make the change over. How do I do this? I know that Outlook saves to a .ost file normally, not sure how to make it keep a updated .pst file automatically.
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Re: How to save email to .pst instead of .ost?

Postby Karlsweldt » Mon Jun 13, 2016 2:51 pm

The *.ost file is encoded to the original program that created it. You cannot just rename the file, or do a quick conversion.. as some third-party offers proclaim.
This may be a soution..
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Re: How to save email to .pst instead of .ost?

Postby Roach412 » Tue Jun 14, 2016 7:11 am

in outlook there's a data files section where you define the name and location of the .pst file.

- On the Home tab, in the New group, click New Items, point to More Items, and then click Outlook Data File.
- In the Create or Open Outlook Data File dialog box, in the File name box, type the name as you want it to appear in the Outlook Navigation Pane, and then click OK.

You'll have the ability to copy any items from the mailbox into this new "personal folders" section which will contain all of the new data files you have created - you'll then have the capability to simply export or copy them to wherever you want. office 365 has a .pst import utility to pull the data into it.

be aware, there is a size limit to .pst files.

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Re: How to save email to .pst instead of .ost?

Postby KaiAro » Wed Jun 22, 2016 5:15 am

A .OST is a cashed Exchange mailbox file. If you need to have a .PST file, you can only perform a move or copy, or convert the file with other 3rd-party software (Recovery Toolbox for Outlook for example. What "he" wants to do is not possible.

Edit: Removed uncertified link.. Karlsweldt.
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Re: How to save email to .pst instead of .ost?

Postby evasive » Wed Jul 06, 2016 1:57 pm

make sure the email client is using IMAP to both the old and the new mailhost, that way the users can move their email dynamically by themsleves between the old and the new email host during a changeover period. Give them a deadline before which they need to migrate and kill the link to the old mailhost in their client configuration after the deadline.
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Re: How to save email to .pst instead of .ost?

Postby Roach412 » Thu Jul 07, 2016 7:12 am

KaiAro wrote:What "he" wants to do is not possible.


it's entirely possible, and simple actually.

he wants me to configure the users to automatically start saving to a .pst file so that way it is ready to import when we make the change over.


create a data file, name is something obvious like InboxCopy or InboxPST...now create a rule that takes all incoming emails and automatically moves it to the new "InboxPST" data file. you now have the user configured to put all .OST emails into a .PST that can be copied over. done and done.

i've done this exact thing multiple times at work through our numerous exchange and outlook upgrades/migrations.

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