We have a service that connects to our default receive connector in exchange, which relays the message to external users. Currently I have configured the service to use my DA account which assigned all Exchange Roles. I want to create a service account instead of using my DA credentials but i'm stuck as to which admin roles I should select.
To reiterate, the only function that we need is for the service account to be able to authorise mail being relayed externally.
Thanks