Scenario
Recently I extracted emails from 430 different html webpages of organizations with regex but some organizations had multiple emails and here's what the mess looks like
Input
   Organization 2
     info@something.org.au more@something.com market@gmail.com single@noidea.com human@myplace.com south@north.com darlings@mall.com 
   Organization 3
  headmistress@money.com head@skull.com  
What I want
The very first email of these organizations is the important email. Is there any way regex can select everything after the first whole word and I can use Notepad++'s "Replace All" to remove it? 
Output(Something like this)
   Organization 2
     info@something.org.au
   Organization 3
  headmistress@money.com
 
     
     
    