@MJPMJP
I don't have a Mac...
See if the following example can help - some of the content is directed at Windows, hopefully you can extrapolate anything "Mac".
Open your favorite browser > type / enter Printer IP address into URL / Address bar
Tab Scan > Scan to Network Folder > Network Folder Setup
Open your favorite browser > type / enter Printer IP address into URL / Address bar
Tab Network > Network Protocols > Select which protocol(s) to Enable
Example - EWS - Scan to Network Folder
Consider using the printer IP address as opposed to the server name.
EWS_9025_Scan-to-Network-Folder_4
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