Hi!

Is there a way to block compresses and password protected executables in exchange 2013 as our firewall cannot block them?

Thanks.

Hi,

In exchange 2013, we can use transport rule to inspect message attachments. When you inspect attachments, you can then take action on the messages that were inspected based on the content or characteristics of those attachments.

For more information, please refer to this document

https://technet.microsoft.com/en-us/library/jj674307%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396

Best Regards.