Hi,
I have an issue with e-mail tags/flags. The IMAP user is using Thunderbird or Roundcube with Thunderbird tags.
When the user (with an IMAP client) moves an e-mail from a folder to another, tags set on the e-mail are lost.
When we check the filesystem, we can see the "a" tag:
-rw-rw---- 2 test mailusers 2498 Dec 29 15:31 'cur/1676643827.M563793P15241.<HOSTNAME>,S=2498,W=2551:2,a'When we move the e-mail to another folder, the tag disappear:
-rw-rw---- 2 test mailusers 2498 Dec 29 15:31 '.test/cur/1676644340.M214404P22014.<HOSTNAME>,S=2498,W=2551:2,'In both folders, the dovecot-keywords file is:
0 $LABEL1The problem appeared after a major system upgrade (Debian 9 to 10). Dovecot version went from 2.2.27 to 2.3.4.1.
Some system informations:
# dovecot --version
2.3.4.1 (f79e8e7e4)
# cat /etc/debian_version
10.13
# uname -a
Linux <HOSTNAME> 4.19.0-23-amd64 #1 SMP Debian 4.19.269-1 (2022-12-20) x86_64 GNU/Linux
# findmnt /var
TARGET SOURCE FSTYPE OPTIONS
/var /dev/vda3 ext4 rw,nosuid,relatime
# findmnt /home
TARGET SOURCE FSTYPE OPTIONS
/home /dev/vdb ext4 rw,nosuid,nodev,noexec,relatimeThe output of dovecot -n output is here (link expires in one year):
https://paste.evolix.org/?96d46acaea638568#56g7AQLuzJxxy4xintpexJCPgiAAG23c38irQGMkV4RpHere are the operations I see on an e-mail file using strace:
15507 link("/home/test/Maildir/cur/1672326270.M619318P11927.<HOSTNAME>,S=2498,W=2551:2,Sa", "/home/test/Maildir/.test/tmp/1672326456.M737812P15507.<HOSTNAME>") = 0
15507 rename("/home/test/Maildir/.test/tmp/1672326456.M737812P15507.<HOSTNAME>", "/home/test/Maildir/.test/cur/1672326456.M737813P15507.<HOSTNAME>,S=2498,W=2551:2,S") = 0
15507 unlink("/home/test/Maildir/cur/1672326270.M619318P11927.<HOSTNAME>,S=2498,W=2551:2,Sa") = 0Setting mbox_lazy_writes to yes and/or unsetting mail_cache_fields doesn't change anything.
Any idea of what I am missing? Could this be a bug in Dovecot?
Thanks in advance,
-- Alexis Ben Miloud--Josselin <abenmiloud@evolix.fr> Evolix - Hébergement et Infogérance Open Source Marseille (37 rue Guibal, Pôle Média, 13003) / Paris / Montréal http://evolix.com | Twitter: @Evolix @EvolixNOC | http://blog.evolix.com