Re: [exim] LMTP delivery failure

On 20/01/15 20:39, Viktor Dukhovni wrote:
> On Tue, Jan 20, 2015 at 08:21:08PM +0000, Jeremy Harris wrote:
>
>> On 20/01/15 17:44, Ian Eiloart wrote:
>>> The exception would be if you?re using cutthrough delivery, which is available only when there is a single recipient.
>>
>> Just committed this very day in master (i.e. not yet in a released
>> version): multi-recipient cutthrough. Subject to all recipients
>> being deliverable on one interface, to one host/port.
>>
>> However, there might be unpleasant interactions with LMTP. It's
>> not been tried (as far as I know), so there probably are.
>
> If the nexthop transport is LMTP, it is unsafe to attempt to do
> cut-through, because individual recipients might be rejected after
> "." due to quota or similar problems.

Exactly

> How do you deal with a nexthop SMTP relay that rejects a non-empty
> proper subset of the recipients (replies to RCPT TO).

Each response to RCPT TO from the onward connection is reflected
to the inbound connection.
--
Cheers,
Jeremy