Acrobat - Form - "Submit" to Email Not Working

I created a PDF Form with a "submit" button that is suppose to email the completed PDF form via the "default client". This doesn't seem to work and I keep getting the following error, "An error occurred while trying to create a mail document. Adobe Acrobat DC is unable to complete your request. If you are not sure how to proceed further, you can save your form and return it manually using your Internet email service." Anyone know how to correct this issue? I am currently using Outlook (v. 15.24) on a Mac as my default email client and the most current MacOS.

Have you tried the same PDF on another machine? That'll at least show you wether the issue is with the PDF or with your system (either Acrobat or your mail)

Yes. i tried it on another machine. The default email client on that machine was "Airmail" and it worked perfectly. I hit "submit" and it opened up a new message with the attachment and simply had to hit send. I believe "Outlook" is the issue but not sure why.