Hello,
so I found a solution to block /ecp from public. My question is not if this is the only or 'proper' way, although, if anyone has a better suggestion, I'm open to it.
My question is, will adding the IP and Domain Restrictions feature to IIS running on the Exchange server, cause any outage, other than having to restart the IIS service? What I mean is, does IP and Domain Restrictions behave like a 'deny all except whitelisted' or 'allow all except blacklisted/blocked'? If it's the latter, which I assume, adding the feature won't cause any issues. If it's the former though, well, that would cause some havoc.
Thanks!
