Script to delete mail on a specific time period

Script to delete all mails dated 2011 from the mail accounts. email account: user@example.com


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1) touch --date "2011-06-19" /home/example/mail/example.com/user/cur/start  
         >>> creating a file with particular date [from that date onwards] that we want to delete

2) touch --date "2011-12-31"/home/example/mail/example.com/user/cur/end
        >>> file created with a particular date [upto that date] that we want to delete

3) find . -newer /home/example/mail/example.com/user/cur/start -not -newer /home/example/mail/example.com/user/cur/end -exec mv {} --target-directory=/home/example/mov_mail/ ';'
       >>> script will move mails dated from 2011-06-19 to 2011-12-31 to the folder /home/example/mov_mail/

4) deleted the contents in the folder /home/example/mov_mail/