Is there a script that could delete the conflict folder for 800 mailboxes rather than manually emptying the conflict folder? According to best practice of Microsoft

Question

Is there a way where you can delete conflict folder for 800 Mailboxes without emptying it manually? Tried OST recreation but failed.

Answer 1

To delete conflict messages from multiple mailboxes, you can use a PowerShell script that utilizes the Search-Mailbox command. However, it's important to note that Search-Mailbox cannot be configured to filter messages according to the message class directly. Instead, you can filter by subject and sender.

Here’s a general approach you could take:

1. Create a list of the mailboxes you want to target.
2. Use a loop in PowerShell to iterate through each mailbox and run the Search-Mailbox command to delete conflict messages.

Here is a sample script:

$mailboxes = "user1@example.com", "user2@example.com", "user3@example.com"  # Add all 800 mailboxes here
foreach ($mailbox in $mailboxes) {
    Search-Mailbox -Identity $mailbox -SearchQuery 'Subject:"Conflict Message:"' -DeleteContent
}

Make sure to replace the mailbox list with your actual mailbox addresses. This script will delete conflict messages that have the subject "Conflict Message" from each specified mailbox.

Before running such scripts, ensure you have the necessary permissions and have tested the script in a safe environment to avoid accidental data loss.

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References:

• How to disable public folder Conflict Message notification

Answer 2

Hi, thanks for posting here in Microsoft community, have you tried the standard PowerShell loop with Search-Mailbox? A possible alternative is using Compliance Search or New-ComplianceSearchAction in the Security & Compliance Center, which scales better for large mailbox counts and avoids looping through 800 addresses manually.

Also, are you running this in Exchange Online or on-premises Exchange? This will help narrow down the best alternative approach.

Let me know.

Chard