CasperJS WaitFor not waiting for the condition to finish

I'm relatively new to casperJS.I have script where i want to perform operation in page B(i.e Verify the confirmation mail for user),then proceed with execution in page A.code snippet is as follows

casper.waitFor(function(){
   return this.run(function(){
     return verifyEmail(user_details['email']);
  });
},function then(){
   this.wait(60000, function() {
   this.reload(function(){
     this.echo("Refresh");
     this.capture('after-reload-a.png');
    });
  });   
}); 

and the function verifyEmail is defined as follows:

function verifyEmail(email){
    return casper.open('someURL').then(function(response){
        //extract URL from response
                    this.echo("URL"+url);
        casper.start().thenOpen(url, function() {
            this.waitForText('someText',function(){
                this.capture("final.jpg");
            });
        });
        return url;
    });
};

During the execution,Casper never executes the function verifyEmail(URL is never printed) and proceeds with then() function.What am i missing here?