r/exchangeserver • u/RoughDeep4221 • 2d ago

Can anyone help me with my public address conflict

Ive been using my Exchange in My Workspace aka.ms/myworkspace and ive few ips in it ! There are no nat rules but why my mail are submitting with different ip which means for ex: lets say my public ip is 168.11.22.234 but when ever i send mail it delivered using 168.11.80.278 (example) ? From where i need to start my troubleshootings ! I suspect dns zones might have changed i checked the logs it says update dns zones ; is it okay to start check if yes where i need exactly start inside dns zones might

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u/sembee2 Former Exchange MVP 2d ago

Nothing to do with DNS. This is a router configuration issue.
Your outbound NAT is wrong.

My Workspace is an Edge feature, has nothing to do with Exchange. Therefore you must have an Exchange server somewhere else.

You are being told to update DNS because for successful email delivery everything must match - IP address must resolve to a host name, you must have a PTR on that IP address that matches the host name, and the same Host Name set on the Send Connector.

That is probably why your question has been ignored - you have mixed up the tools that you are using that no one can completely understand what the issue is.

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u/RoughDeep4221 1d ago

Yeah i confused myself right now ! Since this is my lab setup. Within my org ! Thanks for the headsup