Can you post an example of the links they receive in an email here? Because my experience with this in the past was that the OS actually puts a contextual menu service in place automatically to convert those Windows style paths to macOS friendly ones. It should show up under the "Services" submenu when right/control clicking on the link. At least what I recall was that it wasn't necessary to "convert" them at all. The OS just knew how to handle them and open them up correctly.

Take a look at that when you can. I don't have a valid link I can do any testing with, so I'm limited in what I can see from my end.

@mm2270

For example, they would receive a windows network drive path

Something similar to this:
P: estinfrastructuresoftware

On a Windows machine, you can click the hyperlink and the share will open up, on Mac, it just gives an error stating it cannot reach the destination.

On my Mac, when i right-click the hyperlink and go to Services, I do not have an option for open Windows LInk

@gquattro P: estinfrastructuresoftware is a Windows local path for whatever is mapped to the drive letter P on the machine it was created on. A Windows network path would be \\someservername estinfrastructuresoftware and if you right-click on that and select Open URL from the Services item in the contextual menu it should open it in the Finder.