Auto Replay error

[mamaj m]

Dear all,
I have freebsd 5.3
and i install on it open webmail 1.14 whan i  confugare the open web to auto 
replay i have this error

postmaster notify: /home/rani/.forward: line 1: "| 
/usr/local/www/cgi-bin/openwebmail/vacation.pl -t60s -a rani... rani"... 
User rani at server.hanan.org doesn't have a valid shell for mailing to 
programs

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