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
