Hyperlinks not working when emailing...

Good Afternoon Everyone:

I have a user that creates a PDF doc with hyperlinks that point to documents that are on their internal network. If a user on their network opens the document from a network share, the hyperlinks work. If the document is emailed to another user that is on the same network, the hyperlinks are still there but they no longer work (document does not come up) . I've also put down some of her notes as well:

this is how she is creating the links-

I’m creating the links after the Word document is saved as a PDF. It’s pretty easy – I just click the Link option under Tools > Content and then follow the steps.

The problem seems to happen when it is email. We have checked all filtering on the mail end (365) and we have not found that 365 is stripping the hyperlink away. The hyperlink is there, it's just that when you click on it...nothing happens. I appreciate any help on this issue. Thanks everyone. 

FYI- The version of acrobat she is using is Acrobat X