[Exim] Barred domains

Sorry if this has been posted before - I have just started looking at the
list again after a long lay-off.

My problem is that I want to bar certain domains (porn/spam etc) but emails
from these domains still get through to the user mailboxes.

I am using Exim 3.33 and have the line host_reject_recipients =
freeyoungsnatch.com : hotmail.com in the configuration file (top half). I
have restarted exim and sent a test message from my hotmail account, but it
still appears in my mailbox.

I have read and re-read the Exom book (O'Reilly - definately recommended),
but I cannot see what is wrong with my host_reject_recipients line.

Anybody shed some light on this for me ??

Cheers
Gary

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Gary Mason
Renaissance Technical Services