The Texas progressive blog Burnt Orange Report is reporting that Greg Abbott is sending e-mails from Rick Perry's campaign e-mail account.
Link
I am not an expert on campaign laws in Texas by any stretch of the imagination, so I can't tell you whether or not this is legally permissible, however, it looks as if Greg Abbott is going to campaign for Governor of Texas as Rick Perry's chosen successor.
Greg Abbott, just like Rick Perry, is wrong for Texas on many levels.