May 24 2020 03:33 AM - edited May 24 2020 03:35 AM
Hi.
I was wondering, if there is some reference or powershell cmdlet to get all the built in file types (96 are shown in the EAC) in antimalware policies:
Furthermore, I wonder which file types Exchange Online or Office 365 can recognize regardless of the file extension. I can add xlsm as a file type in an antimalware policy, and then Excel macros will also be filtered, even I give them another extension. Why are Excel macros not included in the 96 built-in lists of the antimalware policies by default?
Other palces, where file types play a role:
Transport Rules
OWA Policies
Outlook Desktop Clients
DLP
Security and Compliance
...
It is quite confusing that the documentation of the individual areas always describes different file types.
How do I know, which file types I can add where to get them procecced regardless of the file name extension?
Hope someone can help here.
Best regards
Andreas
Jun 20 2020 09:41 AM
Jun 23 2020 02:53 PM - edited Jun 23 2020 02:54 PM
Hi @AndreasMarx
Excel Macro is still quite widespread so you can't automatically exclude it (I know sounds strange).
I think following statement clears out the situation. Inspectable file extensions are known to antimalware policies and don't really on name comparision.
Following section talks about the inspectable filetypes. Take a look if it helps you.
With those documentation I would start my scenario's.
Hope it helps.
Regards