Exchange 2007 - Export to CSV shell command

Each mailbox has emails that are tagged with a phrase "This message has been automatically saved and archived". I need to find the number of emails for every mailbox and export that to and .csv file. In the end, I would like to have a .csv file with the mailbox account and the number of messages that matches the phrase.

What command can I use in shell to achieve this?
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Julian123Connect With a Mentor Commented:
There is no one single command that will give you what you need, but you can get it with a combination of a few. Here's how I would do it:

1. Create a new mailbox.
2. Use the export-mailbox command on each mailbox and configure it to filter based on the phrase you want. You can run the sun multiple mailboxes using get-mailbox | export-mailbox. The exact syntax for the command can be found here: The results will be that a copy of each of those items will be made in the new mailbox.
3. Run the get-mailboxstatistics command on the new mailbox. That will give you count of all items in the mailbox. Since the only items you've placed there are those you copied in the previous step, that count should match the number of items you found.
namidoAuthor Commented:
Will this separate each mailbox? It looks like the get-mailboxstatistics will only give me results from the new mailbox created.
If you need that, you can use export-mailbox to put items in separate folders in #2 above. You can then run get-mailboxFOLDERstatistics to get the per-folder account in #3.
namidoAuthor Commented:
Could you give me an example of the syntax you would use? Catching and separating the mailbox and phrase is what I'm struggling with.
Here's an example:

Export-Mailbox -Identity contoso\john -TargetMailbox MyMailbox -TargetFolder MyData -ContentKeywords "mykeyword"

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