> On 20 September 2018 at 14:39 Michael Goth <m...@webflow.de> wrote: > > > On 09/20/2018 12:56 PM, Robert Schetterer wrote: > > Am 20.09.2018 um 11:04 schrieb Michael Goth: > >> Hello, > >> > >> I'm setting up Dovecot 2.3.2.1 as a submission proxy to a Postfix > >> backend server. Dovecot announces CHUNKING, but the Postfix backend > >> does not support (or announce) it. > >> > >> HELO from Postfix: > >> > >> 220 backend.mydomain.com ESMTP Postfix (Ubuntu) > >> ehlo test > >> 250-backend.mydomain.com > >> 250-PIPELINING > >> 250-SIZE 104857600 > >> 250-VRFY > >> 250-ETRN > >> 250-STARTTLS > >> 250-ENHANCEDSTATUSCODES > >> 250-8BITMIME > >> 250 DSN > >> > >> > >> HELO from Dovecot proxy: > >> > >> 220 proxy.mydomain.com Dovecot ready. > >> ehlo test > >> 250-proxy.mydomain.com > >> 250-8BITMIME > >> 250-AUTH PLAIN LOGIN > >> 250-BURL imap > >> 250-CHUNKING > >> 250-ENHANCEDSTATUSCODES > >> 250-SIZE > >> 250-STARTTLS > >> 250 PIPELINING > >> > >> > >> When a client sends BDAT, Postfix closes the connection. Here's a log > >> snippet from Postfix: > >> > >> < MAIL FROM:<u...@mydomain.com> > >> > 250 2.1.0 Ok > >> < RCPT TO:<s...@recipient.com> > >> > 250 2.1.5 Ok > >> < BDAT 114098 LAST > >> > 502 5.5.2 Error: command not recognized > >> < Content-Type: multipart/alternative; > >> boundary=Apple-Mail-55D35F74-2EB7-4B3B-A607-E421DD71C07A > >> > 221 2.7.0 Error: I can break rules, too. Goodbye. > >> > >> > >> Apple Mail seems to ignore the fact that Postfix does not understand > >> BDAT and Postfix does not like that :-) > >> > >> > >> From a quick glance at the code it seems CHUNKING is always added to > >> the capabilities and that's not configurable. Is this a bug or am I > >> doing something wrong? > >> > >> > >> Thanks, > >> > >> Michael > > > > that "may" version depend > > > > http://www.postfix.org/features.html > > ... > > Postfix 3.4 SMTP server support for RFC 3030 CHUNKING (without > > BINARYMIME). > > ... > > > > As far as I understand, Dovecot always adds certain capabilities. This > is the responsible code (I think): > > https://github.com/dovecot/core/blob/c8d03c3cab68328947a5afb47f48aef5b5a1e4ab/src/submission/submission-client.c#L95
Hi! Thank you for reporting this bug, we'll look into it! Aki
