On Thu, 2 Apr 2020 13:18:14 +0000, Adam Raszkiewicz stated: >Desired flow looks like: > >Dovecot ---------------------> Postfix --> Relay Server -┐ >Dovecot <-- LMTP/LDA <-- Postfix <---------------------┘ > >Top part of that flow works fine - a message will get to the relay >server and it will be send back to the postfix for a local delivery >but then it will start to loop back to the relay server instead hand >over to LMTP/LDA. > >For some reason Postfix doesn't know that a...@localdomain.com is >located on Dovecot and it will try to send it back to the relay >server. I have the same problem explained here: >https://serverfault.com/questions/1010325/postfix-via-relay-server-and-lmtp-configuration-for-incoming-delivery-to-local-m > >Thanks for any help! >~Adam > >On 4/1/20, 6:45 PM, "dovecot on behalf of Dauser Martin Johannes" ><dovecot-boun...@dovecot.org on behalf of mdau...@cs.sbg.ac.at> wrote: > > On Dienstag, 31. März 2020 21:14:26 CEST Adam Raszkiewicz wrote: > > But then it loops again when get back to the postfix as an > > incoming message (doesn't know that a...@localdomain.com is > > located on that Dovecot) > + > > Is there any way to disable Dovecot LDA? I want to always send > > email via postfix and relay server even it will be a local > > delivery within the Dovecot server > > > >Thanks, > >Adam > > Why should a disabled LDA or a relayhost help in this matter? > Honestly, who is sending what to where anyway? > > I mean Dovecot is an IMAP-Server: It receives emails from Postfix > and mailclients connect to Dovecot to get these mails. When a > mailclient sends an email it connects to Postfix not to Dovecot, so a > delivery "within Dovecot" isn't really happening. Dovecot's LDA has > options to send (bounce) mails back to Postfix. I guess loops occur > there? > WHO doesn't know that a...@localdomain.com is located on Dovecot > -- Dovecot itself (= unknown recipient or perhaps permission problems > while saving the mail) or Postfix (= no transport to Dovecot)? > > Martin
This question really belongs on the 'postfix' forum. Have you read <http://www.postfix.org/DEBUG_README.html> or better still, <http://www.postfix.org/DEBUG_README.html#mail>. The "postfinger" tool is the best way. -- Jerry
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