Re: [exim] Exim proxy / relay for disaster recovery for lost…

On 23/05/2022 14:11, Jeremy Harris via Exim-users wrote:
> On 23/05/2022 14:02, Sebastian Arcus via Exim-users wrote:
>> [internet] <-> [relay Exim] <-> [inhouse Exim]
>>
>> Can the smtp router or transport on the relay Exim be configured to
>> keep the connection open for inbound email until the inhouse Exim
>> accepts or rejects the email?
>
> Yes.  Look for "cutthrough delivery" in the docs concept index.
>
> Note that internal action has to be taken as the "relay" is accepting
> the message, so ACL configuration is needed (and not router/transport).

Brilliant - thank you very much to both Jeremy and Gedalya. It's the
sort of hint I needed. I will take a closer look and see if the option
suits what I need.