[exim] ACL syntax question

Hello,

Odd question - is there any difference between the following 2 ACL
statements:

     hosts = ! +local_domains
   ! hosts = +local_domains

I'm assuming there is no difference.

Secondly, using a named ACL is there a difference between:

      acl = ! some_other_acl
    ! acl = some_other_acl

We currently don't use named ACL's but am about to do so. As far as I
can tell (read) the 'some_other_acl' acts like any other ACL and returns
'accept' or 'deny'. As such a '!' will just negate that answer, so the
above 2 statements are again the same. Correct?



Thanks,

John.

-- 
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John Horne, University of Plymouth, UK  Tel: +44 (0)1752 233914
E-mail: John.Horne@???       Fax: +44 (0)1752 233839