Wietse Venema via Postfix-users: > Brad Koehn via Postfix-users: > > I'm trying to deliver email with Postfix 3.7.10 using `qmqpd`. > > Unfortunately when I do this, the email is often unreadable by a > > variety of email clients. > > I suppose you mean "receive" mail with Postfix using qmqpd. > > > Curiously, if I deliver the same email directly to Dovecot via > > LMTP, clients have no issue with the message. I expected the > > opposite to be the case: by bypassing all the cleanup functionality > > my emails would be harder to read. > > > > I'm early in my investigation, but I was wondering what might be > > going wrong? I notice for starters that the version I deliver via > > QMQP has the `Content-Length` header removed; th LMTP version > > preserves it. > > This is configurable with message_drop_headers (default: bcc, > content-length, resent-bcc, return-path). But I think you have worse > problems. > > > In another case, the QMQP version has an extra CRLF before the > > "This is a multi-part message in MIME format" text, which I believe > > makes it unrenderable; the LMTP version doesn;t have that extra > > line > > Your message is malformed: there was no empty line after the last > header line. When email is out-of-spec, it may not be delivered > in it malformed state.
Your mention that Content-Length is somehow needed to make a message readable is another sign of trouble. I suspect that your message is not properly formatted as lines of text as requried for MIME formatted text: https://datatracker.ietf.org/doc/html/rfc2045#section-2.7 https://datatracker.ietf.org/doc/html/rfc2045#section-2.8 Again, there are no guarantess for "correct" delivery of email messages that violate the spec. This is another way of saying that the burden of proof is on you: show that a well-formed message is mis-handled by Postfix, with evidence in form of pcap files, hex dumps, or loss-less equivalents. Wietse that Postfix supports: 7bit and 8bitmime. _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
