> On Feb 26, 2017, at 5:56 PM, Thomas Minor <thomas.mi...@hrnetzwerk.de> wrote:
>
> And, on the other side, postfix as a client
> should not reuse a dead connection.
Postfix (somewhat obviously) cannot "reuse" a closed connection.
The other server must have kept open.
It is in principle possible to add a feature to limit re-use of
connections exceed a given count of consecutive re-use attempts
without delivering a single message.
However, as Wietse pointed out, rather similar symptoms occur
with multi-recipient mail, the real issue is that greylisting
generates many self-inflicted "errors" on the receiving side,
and the best solution is for sites that use greylisting to not
impose error count limits.
--
Viktor.
