Having trouble with a new installation of exchange. Its running on Windows Server 2012 R2. All non-default ports are being forwarded to the server, the IP is not on any blacklists. We do have an existing exchange server running on the default ports. Mail
doesn't get stuck in drafts but never gets delivered and has the "unable to relay" error. I can give more details later, but, I've got to run for now. Any suggestions are appreciated. Sorry if lack of any useful information in the initial post.
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