dot qmail no effect

[Said Madrus]

Dear all,
i have already installed freebsd, qmail, daemontools, ucspi-tcp, mysql,
vpopmail, checkpassword.
the problem is i can not give intruction in dot qmail like this :
 &[EMAIL PROTECTED]
|if [ "$SENDER" = "[EMAIL PROTECTED]" ]; then echo -e "Don't send me
again"; exit 100; fi
please anybody can explain to me why ??
thank you very much

~said madrus