i have to insert a centralized signature in Office 365. The problem is due to the fact that I have to insert a logo and the editor GUI does not allow it.
The only way it would seem to load it via powershell commands.
I followed the steps through this technet site but when I try to execute import-module and imposed the path (correct).
Impossible to find data file 'SetOSCEXOEmailSignature1.psm1'