Public Folders

Remove Public Folders 

Get-PublicFolder -Server <server containing the public folder database> "\" -Recurse -ResultSize:Unlimited | Remove-PublicFolder -Server <server containing the public folder database> -Recurse -ErrorAction:SilentlyContinue 

From <https://technet.microsoft.com/en-us/library/bb201664%28v=exchg.140%29.aspx?f=255&MSPPError=-2147217396>  

Get-PublicFolder -Server <server containing the public folder database> "\Non_Ipm_Subtree" -Recurse -ResultSize:Unlimited | Remove-PublicFolder -Server <server containing the public folder database> -Recurse -ErrorAction:SilentlyContinue 

From <https://technet.microsoft.com/en-us/library/bb201664%28v=exchg.140%29.aspx?f=255&MSPPError=-2147217396>  

Exchange 2010