Mavericks Mail.app Text Re-formating Driving Me Bonkers

I send my e-mails in plain text via mail.app. Since the release of Mavericks, there is one auto-correct feature that is driving me bonkers and I'm hoping someone here can point me in the right direction.

When composing long e-mails, I will create headers using a string of dashes. For example...

------------------------------------
Next Steps
------------------------------------

However, with the release of Mavericks, when I create the dashed line, it is replace with the following:

——————————————————
Next Steps
——————————————————

The problem is that I can't find where to turn this off. Any suggestions?

Thanks in advance!

Solution 1:

Found the answer to my own question. For some reason, simply asking the question tends to provide me more clues from which to solve it myself. Weird how that works.

Apparently there are substitutions within Mail for Smart Quote and Smart Dashes, which is what was giving me fits. You'll find it under "Edit \ Substitutions \ "