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getInboxEmails('Subject'=>'','To'=>'','SenderName'=>'','Body'=>'zs');

sub getInboxEmails
# this method returns a list of all the mails contained in the Inbox f
+older
...
   }
   return (undef); # if code reaches this line then it hasn't reached 
+the other return
}# implying either the program's not open or there's no document.