I use email to text through SMS gateways. If someone tells me his carrier is verizon I write phonenumber@vzwpix.com as the email address
So I was just wondering if it's possible to create a macro to simplify the copying and pasting in the email address.

if txt is verizon
emailaddress1 = 9999999999@vzwpix.com
emailaddress2 = 9999999999@vtext.com
if txt is sprint
emailaddress1 = 9999999999@pm.sprint.com
emailaddress2 = 9999999999@messaging.sprintpcs.com
if txt is att
emailaddress1 = 9999999999@mms.att.net
emailaddress2 = 9999999999@txt.att.net
if txt is tmobile
emailaddress1 =9999999999@tmomail.net

Thanx