Search-Mailbox subject with symbols

Question

Dear all,
I am facing a problem searching for e-mails with subject containing symbols.I've tried different ways, but it doesn't find anything.

Search-Mailbox -identity identity -SearchQuery "subject:test:dog/cat" -DeleteContent -Force -Confirm:$false
Search-Mailbox -identity identity -SearchQuery "subject:'test:dog/cat'" -DeleteContent -Force -Confirm:$false
Search-Mailbox -identity identity -SearchQuery 'subject:"test:dog/cat"' -DeleteContent -Force -Confirm:$false

Using KQLQuery doesn't help as well.

$subject = "test:dog/cat"
$search =  "subject:$subject"
$KQLQuery =[scriptblock]::create($search)

could someone advice, please?
Thank you

Answer 1

@escpoar

There doesn't exist issue with the search query:

This issue may related with Exchange index, if your mailboxes hosted on Exchange 2010/2013/2016, you can take step below to rebuild database index:
Stop those two services:

Delete "XXXXXX.Single" folder from database path:

Restart above two services and search again.

If your mailbox hosted on Exchange 2019 database, try to create a new database and migrate this mailbox to it and search again.

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