On 03/12/2007, ikearns <iankearns@???> wrote: >
> I thought it was but for some reason mail is still getting through when I
> know 100% that the recipients address is invalid / on the right domain but
> the mailbox doesnt exist.
You've not posted any config or debug information, so at best, one can
say 'you got something wrong'.
exim -d+all -bhc <some.ip.add.ress>
will run a debug SMTP session and show you the ACLs executing. There
will be a lot of output, and somewhere within it will be the answer.