Cannot find the fix for Exchange 2010 open relay
Posted on 2014-09-16
From time to time the queues in my exchange 2010 server are full of spam. When checking those messages, i see the ¨from¨field is some external email address, not from our organization.
Been looking here and trying different options, but still, in tests in mxtoolbox and other tools, the server still figures as an open relay, even if i have a specific domain list in my "accepted domains" tab...
Could someone walk me through the settings to close the open relay?