365 Dynamic Distribution Group - exclude extension attribut

[lorenzo lorenzo]

Hello ...

I want to create some dynamic distrubution groups based on extension attributs. for each dynamic distribution group I want to includ all value of extension attributs and exclude on of them. How can I do that without mentionning each value of included attributs ?

thx

[#2]

Simply use the -not operator? Something like "{ExtensionCustomAttribute5 -ne $null}" or some value...