Hi Viktor,
thanks for the answer. I'll try to suggest this to the other servers admin team. Since I do not know if they consider this, I'll stick to disabled default connection reuse. I'm interested which end of the connection is responsible of the problem, I'll setup a test for this sometime. --Thomas Am 27.02.2017 um 00:15 schrieb Viktor Dukhovni: >> 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. > -- Thomas Minor, Development H & R Netzwerk GmbH Am Königsweg 9 48599 Gronau-Epe Sitz: Gronau / Westf. Handelsregister: Amtsgericht Coesfeld, HRB 5886 Geschäftsführer: Harald Beine --
