Exchange Online Protection - autodiscover required?

I'm setting up Exchange Online Protection for our on-premise server. Its suggesting that I have to change our DNS autodiscover record to point to, but surely this is wrong if we are using on-premise mailboxes? Anybody able to advise please?

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achaldaveConnect With a Mentor Commented:
I haven't used EOP but I don't think you need to change autodiscoverer record to you definitely need to change MX records to point to EOP. I think the document you are seeing is for EOP+office365, if you have standard EOP license or not going to use office 365, you should be ok without changing autodiscoverer record.
jostickAuthor Commented:
That's what I though. I'll try a new device out and see what happens...
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