email keyboard or regular keyboard?

[PrinceAlbert]

i'm typing this on a "regular" keyboard layout. However, if I start an email, the keyboard space bar shrinks, adds "@" to the left and ".com" to the right of the space bar.

This is causing some fun when typing as sometimes the special keys are there, sometimes they're not, depending on the app open.

is there a way to lock a preference to one or the other?