Exchange 2007 Relaying question?
Posted on 2007-07-23
We're using an Exchange 2007 server for our email... I am using ASP.NET web pages to send email notifications. To do that, the IIS server uses a simple SMTP conversation with the Exchange 07 server.
I am, however, getting an error:
The server rejected the sender address. The server response was: 530 5.7.1 Client was not authenticated
I suspect this has to do with our exchange server not allowing relaying... and that is a good thing, but I know in Exchange 03, it was possible to allow an exception.
In this case, I would like to add the IIS server (let's assume it's IP address is 192.168.10.200) to that exception list and allow any email from it specifically to be relayed to anyone from anyone.