(file-error "writing to process" "bad address" #<process imap>) when Gcc-ing a group

[Tassilo Horn <tassilo@member.fsf.org>]

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Hi all,

some time ago (message <87k5bqv5bc.fsf@thinkpad.tsdh.de> on ding) I had
problems when sending mails with big attachments (> 1 MiB or so).  To be
precise, the sending via SMTP works just fine, but I get the error from
the subject when Gnus tries to upload the message to my local IMAP
server because of the Gcc header.

In the thread starting with <87k5bqv5bc.fsf@thinkpad.tsdh.de> I said
that turning off imap logging (nnimap-debug, imap-log, imap-debug all
set to nil) solves the issue for me, but sadly that's not true.

I still get that error and for me its perfectly reproducible.  Here's an
example backtrace.

--8<---------------cut here---------------start------------->8---
Debugger entered--Lisp error: (file-error "writing to process" "bad address" #<process imap>)
  process-send-region(#<process imap> 1 8337045)
  imap-send-command(("APPEND \"" "INBOX" "\" " #<buffer  *acc*>) nil)
  imap-send-command-wait(("APPEND \"" "INBOX" "\" " #<buffer  *acc*>))
  imap-message-append("INBOX" #<buffer  *acc*> nil nil " *nnimap* Uni")
  nnimap-request-accept-article("INBOX" "Uni" t)
  gnus-request-accept-article("nnimap+Uni:INBOX" "nnimap:Uni" t t)
  gnus-inews-do-gcc()
  gnus-agent-possibly-do-gcc()
  run-hooks(message-sent-hook)
  message-send(nil)
  message-send-and-exit(nil)
  call-interactively(message-send-and-exit nil nil)
--8<---------------cut here---------------end--------------->8---

The local IMAP server hosting the Gcc-ed group is Dovecot v1.1.11.  I'm
not sure if part of the problem is on its side, but at least I can say
that it has no problems when offlineimap synces big messages from my
IMAP accounts to the local dovecot.

When the Gcc-upload fails, dovecot logs a line like this:

  dovecot: Feb 09 17:14:51 Info: IMAP(uni): \
           Disconnected in APPEND bytes=1992955/1144675

Could somebody please help me with this?

Bye,
Tassilo

Gnus v5.13
GNU Emacs 23.0.90.1 (x86_64-pc-linux-gnu, GTK+ Version 2.14.7)
 of 2009-02-08 on thinkpad
200 cache.uni-koblenz.de InterNetNews NNRP server INN 2.4.2 ready (posting ok).


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