After a few hours of figuring out the dependencies and downloading them, I installed the following packages from the Ubuntu Packages website:
Finally, I got KMail running properly, it checks my gmail account perfectly. The problem is when I run it.
You see, whenever I run KMail or Kontact, it needs to take several seconds to start the Akonadi server. Then, it takes almost a minute for KResource Migration Tool to migrate something I never even created to the "compatibility bridge." It fails, then starts Kontact.
Having Kontact take a minute to load is unacceptable for me. Is there any way to stop it from trying to migrate something every time I run it?
Once this is resolved, I will stop running it in VirtualBox and put it on my MacBook