Accessing Sharepoint files from Outlook

To all that might come across this thread in the future, I am giving you a heads up that I figured it out, although it does not work consistently for everyone in my organization. The main way that I was able to sort this out was through downloading the OneDrive app to my desktop on my mac and the other PC's in the organization. From there, I went to Sharepoint and selected "Sync" which allowed me to add the sharepoint folders to the OneDrive desktop app. And while this worked for me, it has not worked for everyone in my organization, despite updating all software to ensure everything is up-to-date. The other mac in the office is specifically giving us trouble and even our IT guy can't figure it out. So that is our main issue. However, for me, downloading the OneDrive app and then syncing the sharepoint folders is what did the trick. I now have desktop access to all documents in all my sharepoint sites, which easily allows me to attach those files to emails if need be.  Best of luck to all users out there. I hope this post was helpful!