Please see https://doc.dovecot.org/admin_manual/migrating_mailboxes/Aki -------- Original message --------From: tseegerkrb@gmail.com Date: 6/8/23 16:10 (GMT+02:00) To: dovecot@dovecot.org Subject: Migration dovecot server with local users to dovecot with virtual mailboxes Hello, we are using a dovecot server with NIS, we want to transfer it to a new setup. As backend a mysql server will be used in the future. My problem is, if I just copy the maildir or use "doveadm import" all mails are flagged as "unseen". How can i preserve the flags?This is how I have tried it so far.root@mail / $ doveadm import -s -u testuser@testdomain.local maildir:/tmp/testuser-maildir-230608/Maildir/:INDEX=MEMORY "" "All"As a "workaround" I tried to change the flags.root@mail / $ doveadm -v flags add -u testuser@testdomain.local "Seen" "ALL"This led partially to the desired success, the mails are shown as "seen", but the folders (e.g. Roundcube) still show unread mails.dovecot -n############################################# 2.3.13 (89f716dc2): /etc/dovecot/dovecot.conf# Pigeonhole version 0.5.13 (cdd19fe3)# OS: Linux 5.10.0-23-cloud-amd64 x86_64 Debian 11.7 # Hostname: mail.testdomain.localauth_mechanisms = plain loginmail_fsync = alwaysmail_gid = vmailmail_home = /var/vmail/mailboxes/%d/%nmail_location = maildir:~/mail:LAYOUT=fs:INDEX=MEMORYmail_privileged_group = vmailmail_uid = vmailmanagesieve_notify_capability = mailtomanagesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsievemmap_disable = yesnamespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = }passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql}plugin { imapsieve_mailbox1_before = file:/var/vmail/sieve/global/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/var/vmail/sieve/global/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * quota = maildir:User quota quota_exceeded_message = User %u has exhausted allowed storage space. sieve = file:/var/vmail/sieve/%d/%n/scripts;active=/var/vmail/sieve/%d/%n/active-script.sieve sieve_before = /var/vmail/sieve/global/spam-global.sieve sieve_global_extensions = +vnd.dovecot.pipe sieve_pipe_bin_dir = /usr/bin sieve_plugins = sieve_imapsieve sieve_extprograms}protocols = imap lmtp sieveservice auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail }}service imap-login { inet_listener imap { port = 143 } process_min_avail = 1 service_count = 1}service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } user = vmail}service managesieve-login { inet_listener sieve { port = 4190 }}ssl = requiredssl_ca =