*Double-ouch!!*
I've reworked my accept ACL with the broken string expansion into a two
separate ACLs. The first identifies hosts in *+mail_server_hosts* and
selects *cutthrough_delivery*; the second does traditional delivery in
*submission* mode.
Why the double-ouch?
I tested in by hand using my normal
exim -bhc clientipaddress -oMi serveripaddress.port -v -d+all
and hand-cranked the SMTP.
When I used an IP address that resulted in traditional delivery with
submission mode all was fine: the fake session ran through and told me what
Exim would do, finishing by showing me the Exim message id and telling me
it's fake.
When I tested with a different IP address that instead selected
cutthrough_delivery my test message *really did get sent*! (And the Exim
message id shown me at the end telling me it's a fake really is assigned to
the message.)
Eeek! I'll rummage in the bug tracker system and see if this is known
about/fixed in a version after 4.82; if not I'll report it.
Thought I'd record it here in case it helps someone else now or in the
future.
Cheers,
Mike B-)
On 24 February 2016 at 15:19, Mike Brudenell <mike.brudenell@???>
wrote:
> Ouch! You're right: too much effort. I'll take the two ACL route.
>
> Many thanks again,
> Mike B-)
>
> On 24 February 2016 at 15:14, Jeremy Harris <jgh@???> wrote:
>
>> On 24/02/16 14:57, Mike Brudenell wrote:
>> > Does anyone have any thoughts on whether it's possible to do the
>> equivalent
>> > of a *hosts* type match within a string expansion?
>>
>> Yes. But it's more effort than it's worth.
>>
>> - walk list-to-match
>> - spot IP addresses vs. names
>> - do dnsdb lookups
>> - walk multiple returns
>> - compare against sender_ip
>> - go round again having remembered ipv6
>
>
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> Systems Administrator & Change Manager
> IT Services, University of York, Heslington, York YO10 5DD, UK
> Tel: +44-(0)1904-323811
>
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IT Services, University of York, Heslington, York YO10 5DD, UK
Tel: +44-(0)1904-323811
Web:
www.york.ac.uk/it-services
Disclaimer:
www.york.ac.uk/docs/disclaimer/email.htm
