Use your phone company's email gateway for text messages
If you would like to get text messages on your phone rather than email notifications, you can use the email gateway provided by your phone carrier as your email address in your profile. In the email field, simply enter your phone number (ten digits: XXXXXXXXXX), followed by @ and the email gateway. For example below are the three major US carriers:
For ATT:
XXXXXXXXXX@txt.att.net
For TMobile:
XXXXXXXXXX@tmomail.net
For Verizon:
XXXXXXXXXX@vtext.com
Note: Other companies (MVNO's) such as Boost, Cricket, Tracfone, Virgin, US Cellular, Ting, Airvoice, Patriot, and many others, actually utilize one of the three listed above as their underlying network. If you don't know the correct email gateway for your own carrier, you can look it up online, or contact your cellular service provider to find out.