Domain restriction on veusz12/31/2023 I can't believe that not everyone feels the need to block the Exchange Admin Center externally. If you have feedback for TechNet Subscriber Support, "Why do I want to block ECP". Mark the replies as answers if they helped. Turn off access to the Exchange admin center On the existing Exchange server, create a new Internet Information Services (IIS) web site with new virtual directories for the EAC and Outlook on the web that's only accessible from the internal network. Configure a second Exchange server that's only accessible from the internal network to handle internal EAC connections.If you just want to block EAC, you have these two choices: This co-dependency between OWA and ECP is also affecting RSA mfa which I have enabled on OWA only but is also affecting ECP.ĮAC requires the OWA authentication module from the same web site, this may contribute to the MFA issue.īlocking ECP will affect some OWA features as well. Tried to block ECP access to a subnet in the local network with IIS ip and domain restrictions. On an Exchange 2016 server currently coexisting with Exchange 2010. Hope this can help more people with the similar issue to find useful suggestions. I did some research, but cannot find any related articles having a detailed explanation about why EAC requires the OWA authentication module from the same web site.Īnyway, here is a brief summary about this thread. It's great that you get useful information in our forum.
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