Filter emails coming not from my own domain

Dear All,

I want to filter all emails coming not from my own domain to our
private email address say  privateaddress(_at_)mydomain(_dot_)com . I am working
around following  recipie but it is not working, kindly tell me how to
write it.

:0
* !^From:outsidefrom-mydomain(_at_)mydomain(_dot_)com
* ^TO_privateaddress(_at_)mydomain(_dot_)com
/dev/null


Thank you,
Imran

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