On 1 Apr 2019, at 19.40, Alex via dovecot <[email protected]> wrote: > > Hi, > > I haven't received any responses to my duplicate messages problem. It > occurred to me that I posted my full dovecot config instead of just > the changes we've made locally. I thought it might help to follow up > with just the specific config to make it easier to identify a > potential problem.
How are you delivering the mails? With dovecot-lda or something else? Do you see any errors/warnings in your MTA log? Similar problems at least can happen if the delivery takes a very long time and MTA times out and retries the delivery later on, but the original delivery actually succeeded eventually. You might see these differences in Received headers.
