Forwarding mail.

How to configure all mail directed to mail1@mail.ltd were copied on the mail mail2@mail.ltd except mail from addresses mail3@mail.ltd?

I use ISPConfig 3.0.2.1

What is wrong?

### Preposli na druhy mail:
if not (/^From:.*mail3@mail\.\*/:h)
{
exception {
cc '!mail2@mail.ltd'
}
}
### Konec filtru

Thanks for any help ...