<div dir="ltr"><div>Hi,</div><div><br></div><div>I migrate my dovecot server from Debian 9 to Debian 10 (Dovecot 2.3.4.1), since <span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-">when I move a message in a folder, keywords systematically disappear. I'm using Thunderbird 60.8.<span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><br></span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-">Would an option have escaped me?</span> <span title="" class="gmail-">or is there a bug on this version of dovecot?</span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"></span></span></span></span></div><div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><br></span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-">Dovecot 2.3.4.1</span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-">OS : Debian 10.0 x64</span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-">FS : Ext4</span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><br></span></span></span></span></div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"></span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-">dovecot -n result :</span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"># 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf<br># Pigeonhole version 0.5.4 ()<br># OS: Linux 4.19.0-5-amd64 x86_64 Debian 10.0 <br># Hostname: suzuki.domain.tld<br>auth_cache_size = 1 k<br>auth_failure_delay = 3 secs<br>base_dir = /var/run/dovecot/<br>default_vsz_limit = 4 G<br>first_valid_uid = 100<br>lda_mailbox_autocreate = yes<br>lda_mailbox_autosubscribe = yes<br>login_greeting = mail system ready.<br>login_trusted_networks = <a href="http://172.16.0.0/12">172.16.0.0/12</a> <a href="http://192.168.0.0/16">192.168.0.0/16</a><br>mail_fsync = always<br>mail_location = mbox:~/mail:INBOX=/var/mail/%u<br>mail_prefetch_count = 20<br>mail_privileged_group = mail<br>mailbox_idle_check_interval = 1 mins<br>mmap_disable = yes<br>namespace inbox {<br>  inbox = yes<br>  location = maildir:~/Maildir<br>  mailbox Drafts {<br>    special_use = \Drafts<br>  }<br>  mailbox Junk {<br>    special_use = \Junk<br>  }<br>  mailbox Sent {<br>    special_use = \Sent<br>  }<br>  mailbox "Sent Messages" {<br>    special_use = \Sent<br>  }<br>  mailbox Trash {<br>    special_use = \Trash<br>  }<br>  prefix = INBOX.<br>  separator = .<br>  subscriptions = yes<br>  type = private<br>}<br>passdb {<br>  driver = pam<br>}<br>plugin {<br>  acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes<br>  sieve = ~/sieve/.dovecot.sieve<br>  sieve_after = /etc/dovecot/sieve.after<br>  sieve_before = /etc/dovecot/sieve.before<br>  sieve_before2 = ~/sieve/.dovecot.vacation.sieve<br>  sieve_dir = ~/sieve<br>  sieve_editheader_forbid_add = X-Verified<br>  sieve_editheader_forbid_delete = X-Verified X-Seen<br>  sieve_editheader_max_header_size = 1k<br>  sieve_extensions = +editheader<br>  sieve_max_script_size = 2M<br>}<br>postmaster_address = postmaster@domain.tld<br>protocols = " imap lmtp pop3"<br>service auth-worker {<br>  process_min_avail = 6<br>  service_count = 0<br>}<br>service imap-login {<br>  process_min_avail = 10<br>  service_count = 0<br>  vsz_limit = 4 G<br>}<br>service imap {<br>  process_limit = 4096<br>  vsz_limit = 4 G<br>}<br>service pop3 {<br>  process_limit = 1024<br>}<br>ssl_cert = </etc/ssl/certs/suzuki.crt<br>ssl_dh = # hidden, use -P to show it<br>ssl_key = # hidden, use -P to show it<br>userdb {<br>  driver = passwd<br>}<br>verbose_proctitle = yes<br>protocol imap {<br>  mail_max_userip_connections = 25<br>}</span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><br></span></span></span></span></div><div><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-"><span class="gmail-tlid-translation gmail-translation" lang="en"><span title="" class="gmail-">thanks.</span></span></span></span></div></div>