How do I exclude hidden mailboxes from a Dynamic Distribution Group?

I can create new dynamic distribution groups using powershell and the Exchange Console, but I cannot figure out how to filter the hidden mailboxes so they are not added.  Does anyone have any experience with this?  The script I am using is below:

New-DynamicDistributionGroup -Name "test5" -OrganizationalUnit 'mydomain/Distribution Groups' -RecipientContainer mydomain -RecipientFilter { recipienttype -eq 'usermailbox' -and Company -eq 'company name.' -and CustomAttribute2 -eq '' }
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AkhaterSolutions ArchitectCommented:
very interesting question !

New-DynamicDistributionGroup -Name "test5" -OrganizationalUnit 'mydomain/Distribution Groups' -RecipientContainer mydomain -RecipientFilter { recipienttype -eq 'usermailbox' -and Company -eq 'company name.' -and CustomAttribute2 -eq '' -and -not(HiddenfromAddresslistsEnabled -eq $true)}

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fernie54Author Commented:
Looks like that did it.  I think I was trying to make it too complicated.  Thank you.
AkhaterSolutions ArchitectCommented:
You are welcome !

I never did it before and glad to know it worked something to add to my knowledge base for sure
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