I know that the max on a E1 Office 365 plan is 500 recipients per message. We want to lower this to 10. I have powershell setup and working to connect to my account, however I cannot figure out the cmdlets to make this happen. I also cannot figure out where in the website portal area that allows this change to be made either.
Also how can I make it so that emails containing .exe or .zip attachments will automatically be blocked? I cannot find that as well.
All the documentation I found via google seems to be out dated.