#1151389 dovecot-imapd: IMAP parser error on APPEND with UTF8=ACCEPT and LITERAL+

Package:
dovecot-imapd
Source:
dovecot-imapd
Description:
secure POP3/IMAP server - IMAP daemon
Submitter:
Kasparek Tomas (3289)
Date:
2026-10-22 13:03:01 UTC
Severity:
normal
Tags:
#1151389#5
Date:
2026-10-20 11:46:58 UTC
From:
To:
Dear Maintainer,

when solving a problem with SMTPUTF8 support in mail system, I ended up with
a setup, that does not work properly becouse there is a known bug in
dovecot, fixed in upstream, but not included in current debian package.

If there is

mail_utf8_extensions = yes

configuration in dovecot, required for full support when integrated as LMTP
with postfix (or maybe other SMTP servers as well), there is a problem,
that several clients (mainly Thunderbird tested) are not able to save
outgoing mail to a requested folder. The error reported on dovecot imapd
side is:

BAD Error in IMAP command APPEND: Missing ')'

This is solved by upstream via:

https://dovecot.org/mailman3/archives/list/dovecot@dovecot.org/thread/ISDELHRRPVV3PY4SPHYBIVJMTSG5AWAF/
resp.
https://github.com/dovecot/core/compare/6c706fe3b962dfece59edc7b1f439084484ac213%5E...f12df6e0eed634aa4fe92c225b54ef5ee965b35c.patch

which gets accepted in 2.4.2. Would it be possible to add this patch to a
queue to be applied in next package version?

Thank you in advance

#1151389#10
Date:
2026-10-20 18:55:31 UTC
From:
To:
The patchset depends on additional changes that aren't in the trixie
packages, so I'll need to investigate further.

Will you be able to test any candidate packages that I am able to build?

noah

#1151389#15
Date:
2026-10-20 21:16:49 UTC
From:
To:
Actually the issue was trivial to resolve, and I have built packages.
Will you be able to validate the fix?

noah

#1151389#20
Date:
2026-10-21 06:11:28 UTC
From:
To:
Sure, is there a ready binary package or do I have to build it for myself?

Thanks a lot

#1151389#25
Date:
2026-10-21 12:59:01 UTC
From:
To:
I have builds in my people.debian.org repository.  See
https://people.debian.org/~noahm/repo/ for details.  The package version
for testing is 1:2.4.1+dfsg1-6+deb13u8~test0

noah

#1151389#30
Date:
2026-10-22 06:33:59 UTC
From:
To:
It works now fine at least on my setup, so much better for sure.

Thank you for fast reaction and help.

#1151389#35
Date:
2026-10-22 13:01:54 UTC
From:
To:
Control: tags -1 + pending

Thanks, I've queued this for inclusion in the next trixie update.

noah