On Thu, 8 Sep 2005, Philip Hazel wrote:
>
> widen_domains was certainly only ever intended to be useful for
> recipient addresses. What could probably trivially be done is to disable
> widen_domains when verifying a sender address, which isn't quite what
> you said, but I think is equivalent.
Yes, it is. I was thinking of various possible shades of policy when I
wrote that message. What I've implemented for the time being is the
following, which fairly accurately does what you describe. It would be
better implemented in the code, though :-)
dnslookup:
driver = dnslookup
domains = !+local_domains
ignore_target_hosts = +bad_hosts
mx_domains = *.cam.ac.uk
same_domain_copy_routing
transport = smtp
dnslookup_widen:
driver = dnslookup
no_verify_sender
domains = !+local_domains
ignore_target_hosts = +bad_hosts
mx_domains = *.cam.ac.uk
widen_domains = cam.ac.uk : ac.uk
same_domain_copy_routing
transport = smtp
dnslookup_fail:
driver = redirect
domains = !+local_domains
data = :fail: Invalid domain part in email address
allow_fail
Tony.
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