fetchmail conf

I have a mail account where there is one suer with unlimited aliasing. When I want connect this mail server via fetchmail all the mails for the users just go to postmaster (root) but not to the users mailbox How can I do it in the fetchmailrc file poll nickname via mail.realserver.com with proto POP3 localdomains localhost user 'xyz' there with password 'abcd' is user1 user2 here options pass8bits warnings 3600 antispam 571 550 501 554 -- Togan Muftuoglu