PowerShell Script to get users who has a particular value in an extension Attribute with 500 MB mailbox size

Dear Script Gurus,

I have a demand where I need to get a report in csv foramt with a list of users who has particular value in an extenstionAttribute and should have 500 MB mailbox size in our concern...

Example:

User1
ExtensionAttribute3:XXXX
ProhibitSendReceiveQuota     : 500 MB

Would you please help with a PowerShell Script to get this report generated.. Thanks...
Maggie SummerSr.AnalystAsked:
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Dorababu MSenior Software EngineerCommented:
This command will give you the statistics
Get-MailboxStatistics

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Sample code
Get-MailboxStatistics | Sort-Object TotalItemSize -desc | Select-Object -First 5 | ft displayname,@{Expression={$_.TotalItemSize.Value.ToMb()};label="Total Mailbox Size in Mb"}

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For more information you can check the script here

https://github.com/cunninghamp/Get-MailboxReport.ps1
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
If your output is correct, you are after this:
Get-ADUser -filter "extensionAttribute3 -eq 'xxxxx'" |
  Select -expand UserPrincipalName |
  Get-Mailbox |
  ? { $_.ProhibitSendReceiveQuota -eq 500MB  } |
  Select Name, ProhibitSendReceiveQuota |
  Export-CSV -NoType C:\Temp\Report.csv

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I've left out the extension attribute export because it requires more effort to pass thru and is fixed anyway.
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
#a42438720  does not answer the question at all. We can assume my comment does, at least as far as info has been provided.
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