Text message alerts/ringtones.

[Versus]

Hey guys.

I'm trying to change the Ringtone of a text alert from numbers via Email address (@gmail.com) to differentiate it from other incoming texts. Using a Droid Razr Max. Any of you have a Droid and figure this out? Or even point me in the direction of an App that can do this...

I know how to change each contacts personal ringtone, that's no problem. My problem comes in when I get a TEXT from an EMAIL address. I can't manage to change that ringtone. Nor will any App (free) I've found change it, they all can only change actual phone numbers incoming tones.

Example:
Text from John Smith (123-456-7890) : (Sound) = DROID
Text from Jane Smith (123-456-7890) : (Sound) = DROID
Text from EQRELATED (www.whydoIstillplayEQ@gmail.com) : (Sound) = DROID

The first two can be changed, where as the third can not be changed successfully. Sure, you can change the ringtone of it, but it will never take effect because it never actually texts you in the fashion that the phone thinks (number vs. email text)