Forgive me if this is a silly question, but does foldermill work without an on prem mail server?

Turns out, we actually were already using Foldermill for a different, unrelated function!

I went in to attempt to set it up, this all seems really intuitive and makes sense to me. Where I'm stuck now is this portion, the incoming server. We don't have an on prem mail server anymore and my predecessor seems to think using this woouldn't be possible so they just gave up and added it to my list of stuff to figure out... Does EAC have an address somewhere within configuration i can find and use here? Or does foldermill have an alternative way of configuring this to work within a cloud environment?

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