May 2022 - dovecot - dovecot.org

Fix lmtp_save_to_detail_mailbox to be case insensitive?
by dovecot＠ptld.com 22 May '22

22 May '22

To bring this up again because i have not found a work around solution. Can dovecot make lmtp_save_to_detail_mailbox case-insensitive? If you create a folder "foobar" then an email with recipient user+foobar(a)example.com will be placed in the folder. However with the folder as "foobar" an email with recipient user+FOOBAR(a)example.com will report folder "FOOBAR" not found and the email will be placed in the inbox folder.

4 10

LDAP virtual user username being rewritten:
by Coy Hile 21 May '22

21 May '22

Hi all, I’m working on migrating a dovecot instance that formerly had its only user (me) stored in a SQL database to a new instance that uses LDAP so I don’t have to maintain a handful of different passwords. However, I’m ending up getting sent to an incorrect mailbox because the %d part of the username I enter is getting stripped somewhere along the lines. Dovecot debug logs show this happening here: May 21 18:36:53 auth: Debug: client in: AUTH 1 PLAIN service=imap secured session=itEO5InfPJusEgKD lip=172.18.2.131 rip=172.18.2.131 lport=143 rport=39740 resp=<hidden> May 21 18:36:53 auth: Debug: ldap(hile(a)coyhile.com,172.18.2.131,<itEO5InfPJusEgKD>): Performing passdb lookup May 21 18:36:53 auth: Debug: ldap(hile(a)coyhile.com,172.18.2.131,<itEO5InfPJusEgKD>): pass search: base=ou=People,dc=coyhile,dc=com scope=subtree filter=(&(objectClass=posixAccount)(uid=hile)) fields=uid,userPassword May 21 18:36:53 auth: Debug: ldap(hile(a)coyhile.com,172.18.2.131,<itEO5InfPJusEgKD>): result: uid=hile userPassword=<hidden>; uid,userPassword unused May 21 18:36:53 auth: Debug: ldap(hile(a)coyhile.com,172.18.2.131,<itEO5InfPJusEgKD>): username changed hile(a)coyhile.com -> hile May 21 18:36:53 auth: Debug: ldap(hile,172.18.2.131,<itEO5InfPJusEgKD>): Finished passdb lookup May 21 18:36:53 auth: Debug: auth(hile,172.18.2.131,<itEO5InfPJusEgKD>): Auth request finished May 21 18:36:53 auth: Debug: client passdb out: OK 1 user=hile original_user=hile(a)coyhile.com May 21 18:36:53 auth: Debug: master in: REQUEST 473956353 9409 1 2c1f94ded4de2c343425c90eeee8d094 session_pid=9412 request_auth_token May 21 18:36:53 auth: Debug: ldap(hile,172.18.2.131,<itEO5InfPJusEgKD>): Performing userdb lookup May 21 18:36:53 auth: Debug: ldap(hile,172.18.2.131,<itEO5InfPJusEgKD>): user search: base=ou=People,dc=coyhile,dc=com scope=subtree filter=(&(objectClass=posixAccount)(uid=hile)) fields=homeDirectory,uidNumber,gidNumber May 21 18:36:53 auth: Debug: ldap(hile,172.18.2.131,<itEO5InfPJusEgKD>): result: homeDirectory=/home/hile uidNumber=10000 gidNumber=10000; homeDirectory,uidNumber,gidNumber unused May 21 18:36:53 auth: Debug: ldap(hile,172.18.2.131,<itEO5InfPJusEgKD>): Finished userdb lookup May 21 18:36:53 auth: Debug: master userdb out: USER 473956353 hile home=/data/mail/vmail//hile uid=998 gid=998 auth_token=3a262da408d33ce2c51ecb1ddd943203fdbb17a3 auth_user=hile(a)coyhile.com Note the “username changed” line above. Clearly I’ve misconfigured something, butI am unsure what. My configuration is as follows: root@basement-imap01:/var/log# doveconf -n # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.2 () # OS: Linux 5.4.0-110-generic x86_64 Ubuntu 20.04.4 LTS # Hostname: basement-imap01.coyhile.com auth_debug = yes debug_log_path = /var/log/dovecot-debug.log doveadm_password = # hidden, use -P to show it mail_location = maildir:~/Maildir mail_privileged_group = mail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocols = " imap lmtp" service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = vmail } unix_listener replication-notify { mode = 0666 user = vmail } } service doveadm { inet_listener { port = 12345 } user = vmail } service replicator { unix_listener replicator-doveadm { mode = 0666 } } ssl_cert = </etc/dovecot/private/dovecot.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap override_fields = uid=vmail gid=vmail home=/data/mail/vmail/%d/%n } root@basement-imap01:/var/log# with the dovecot-ldap.conf.ext as follows: root@basement-imap01:/etc/dovecot# cat dovecot-ldap.conf.ext # This file is commonly accessed via passdb {} or userdb {} section in # conf.d/auth-ldap.conf.ext # This file is opened as root, so it should be owned by root and mode 0600. # # http://wiki2.dovecot.org/AuthDatabase/LDAP # # NOTE: If you're not using authentication binds, you'll need to give # dovecot-auth read access to userPassword field in the LDAP server. # With OpenLDAP this is done by modifying /etc/ldap/slapd.conf. There should # already be something like this: # access to attribute=userPassword # by dn="<dovecot's dn>" read # add this # by anonymous auth # by self write # by * none # Space separated list of LDAP hosts to use. host:port is allowed too. #hosts = hosts = ldap.coyhile.com # LDAP URIs to use. You can use this instead of hosts list. Note that this # setting isn't supported by all LDAP libraries. #uris = # Distinguished Name - the username used to login to the LDAP server. # Leave it commented out to bind anonymously (useful with auth_bind=yes). #dn = dn = uid=dovecotquery,ou=people,dc=coyhile,dc=com # Password for LDAP server, if dn is specified. #dnpass = dnpass = [REDACTED] # Use SASL binding instead of the simple binding. Note that this changes # ldap_version automatically to be 3 if it's lower. #sasl_bind = no # SASL mechanism name to use. #sasl_mech = # SASL realm to use. #sasl_realm = # SASL authorization ID, ie. the dnpass is for this "master user", but the # dn is still the logged in user. Normally you want to keep this empty. #sasl_authz_id = # Use TLS to connect to the LDAP server. #tls = no # TLS options, currently supported only with OpenLDAP: #tls_ca_cert_file = #tls_ca_cert_dir = #tls_cipher_suite = # TLS cert/key is used only if LDAP server requires a client certificate. #tls_cert_file = #tls_key_file = # Valid values: never, hard, demand, allow, try #tls_require_cert = # Use the given ldaprc path. #ldaprc_path = # LDAP library debug level as specified by LDAP_DEBUG_* in ldap_log.h. # -1 = everything. You may need to recompile OpenLDAP with debugging enabled # to get enough output. #debug_level = 0 # Use authentication binding for verifying password's validity. This works by # logging into LDAP server using the username and password given by client. # The pass_filter is used to find the DN for the user. Note that the pass_attrs # is still used, only the password field is ignored in it. Before doing any # search, the binding is switched back to the default DN. #auth_bind = no # If authentication binding is used, you can save one LDAP request per login # if users' DN can be specified with a common template. The template can use # the standard %variables (see user_filter). Note that you can't # use any pass_attrs if you use this setting. # # If you use this setting, it's a good idea to use a different # dovecot-ldap.conf.ext for userdb (it can even be a symlink, just as long as # the filename is different in userdb's args). That way one connection is used # only for LDAP binds and another connection is used for user lookups. # Otherwise the binding is changed to the default DN before each user lookup. # # For example: # auth_bind_userdn = cn=%u,ou=people,o=org # #auth_bind_userdn = # LDAP protocol version to use. Likely 2 or 3. #ldap_version = 3 # LDAP base. %variables can be used here. # For example: dc=mail, dc=example, dc=org base = ou=People,dc=coyhile,dc=com # Dereference: never, searching, finding, always #deref = never # Search scope: base, onelevel, subtree #scope = subtree scope = subtree # User attributes are given in LDAP-name=dovecot-internal-name list. The # internal names are: # uid - System UID # gid - System GID # home - Home directory # mail - Mail location # # There are also other special fields which can be returned, see # http://wiki2.dovecot.org/UserDatabase/ExtraFields #user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid # Filter for user lookup. Some variables can be used (see # http://wiki2.dovecot.org/Variables for full list): # %u - username # %n - user part in user@domain, same as %u if there's no domain # %d - domain part in user@domain, empty if user there's no domain #user_filter = (&(objectClass=posixAccount)(uid=%u)) user_filter = (&(objectClass=posixAccount)(uid=%u)) # Password checking attributes: # user: Virtual user name (user@domain), if you wish to change the # user-given username to something else # password: Password, may optionally start with {type}, eg. {crypt} # There are also other special fields which can be returned, see # http://wiki2.dovecot.org/PasswordDatabase/ExtraFields #pass_attrs = uid=user,userPassword=password # If you wish to avoid two LDAP lookups (passdb + userdb), you can use # userdb prefetch instead of userdb ldap in dovecot.conf. In that case you'll # also have to include user_attrs in pass_attrs field prefixed with "userdb_" # string. For example: #pass_attrs = uid=user,userPassword=password,\ # homeDirectory=userdb_home,uidNumber=userdb_uid,gidNumber=userdb_gid # Filter for password lookups #pass_filter = (&(objectClass=posixAccount)(uid=%u)) pass_filter = (&(objectClass=posixAccount)(uid=%n)) # Attributes and filter to get a list of all users #iterate_attrs = uid=user iterate_attrs = maildrop=user iterate_filter = (objectClass=posixAccount) # Default password scheme. "{scheme}" before password overrides this. # List of supported schemes is in: http://wiki2.dovecot.org/Authentication #default_pass_scheme = CRYPT # By default all LDAP lookups are performed by the auth master process. # If blocking=yes, auth worker processes are used to perform the lookups. # Each auth worker process creates its own LDAP connection so this can # increase parallelism. With blocking=no the auth master process can # keep 8 requests pipelined for the LDAP connection, while with blocking=yes # each connection has a maximum of 1 request running. For small systems the # blocking=no is sufficient and uses less resources. #blocking = no root@basement-imap01:/etc/dovecot# -- Coy Hile coy.hile(a)coyhile.com

1 1

Possible to increase connection limit for one user only?
by Kurt Fitzner 20 May '22

20 May '22

I run a medium-sized virtual domain email server for about 15 domains. I also use it myself and have 3 or 4 devices using imap. I am often using a VPN to connect to my home network, which makes all my connections appear to come from one IP. I want to increase mail_max_userip_connections just for myself only so I'm not opening up my server to abuse. Is this possible?

3 3

doveadm search error
by Christoph Fürstaller 20 May '22

20 May '22

Hello, I've upgraded dovecote to 2.3.19 (b3ad6004dc) a week ago. Since then I get an error when searching for messages from all users in a particular folder: doveadm search -A mailbox 'INBOX.learn' Error: auth-master: userdb list: Disconnected unexpectedly doveadm: Error: Failed to iterate through some users This is in the logs: dovecot: auth: Panic: file userdb-blocking.c: line 124 (userdb_blocking_iter_next): assertion failed: (ctx->conn != NULL) dovecot: auth: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x41) [0x7f1c12675c91] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x22) [0x7f1c12675db2] -> /usr/lib/dovecot/libdovecot.so.0(+0x10b0bb) [0x7f1c126830bb] -> /usr/lib/dovecot/libdovecot.so.0(+0x10b157) [0x7f1c12683157] -> /usr/lib/dovecot/libdovecot.so.0(+0x5d375) [0x7f1c125d5375] -> dovecot/auth [0 wait, 0 passdb, 0 userdb](+0x157a7) [0x55e0278287a7] -> dovecot/auth [0 wait, 0 passdb, 0 userdb](+0x1954b) [0x55e02782c54b] -> dovecot/auth [0 wait, 0 passdb, 0 userdb](+0x36ca7) [0x55e027849ca7] -> dovecot/auth [0 wait, 0 passdb, 0 userdb](+0x2ab86) [0x55e02783db86] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handle_timeouts+0x15f) [0x7f1c1269976f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xcf) [0x7f1c1269b02f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x54) [0x7f1c12699a54] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40) [0x7f1c12699bc0] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x17) [0x7f1c1260b207] -> dovecot/auth [0 wait, 0 passdb, 0 userdb](main+0x3c8) [0x55e027829588] -> /lib/x86_64-linux-gnu/libc.so.6(+0x29fd0) [0x7f1c122cbfd0] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x7d) [0x7f1c122cc07d] -> dovecot/auth [0 wait, 0 passdb, 0 userdb](_start+0x2e) [0x55e02782976e] dovecot: auth: Fatal: master: service(auth): child 19452 killed with signal 6 (core dumped) I've system users from passwd and users from a passwd-file: userdb { driver = passwd } userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } If I disable the passwd-file, a search works fine, but not with both user backends. This worked fine with version 2.3.18. Someone discovered this behavior too? This is my config: # 2.3.19 (b3ad6004dc): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.19 (4eae2f79) # OS: Linux 5.13.0-41-generic x86_64 Ubuntu 21.10 auth_mechanisms = plain login auth_username_format = %n default_vsz_limit = 2 G mail_location = maildir:~/Maildir mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_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 namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = INBOX. separator = . } passdb { driver = pam } passdb { args = scheme=ARGON2I username_format=%u /etc/dovecot/users driver = passwd-file } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /var/mail/moveSpam.sieve } protocols = imap lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imap { port = 0 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } } ssl = required ssl_cert = </etc/letsencrypt/live/mailserver/fullchain.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { driver = passwd } userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } verbose_proctitle = yes protocol lmtp { mail_plugins = " sieve" } protocol lda { mail_plugins = " sieve" } protocol imap { mail_max_userip_connections = 30 } Best regards, Christoph

2 1

%{listener} not working
by cesco 19 May '22

19 May '22

Hi I'm trying to use the variable %{listener} in the following password mysql query: password_query = SELECT accounts.mcf AS password FROM accounts, domains WHERE user = '%n' AND accounts.domain = '%d' AND accounts.domain = domains.domain AND domains.host = '%{hostname}' AND accounts.service IN ('master', '%{listener}') but it doesn't expand, giving: Failed to expand password_query=SELECT accounts.mcf AS password FROM accounts, domains WHERE user = '%n' AND accounts.domain = '%d' AND accounts.domain = domains.domain AND domains.host = '%{hostname}' AND accounts.service IN ('master', '%{listener} ') : Unknown variable '%listener' %{hostname} works correctly, as well as other variables I tried. many thanks Franz ------------------- below my doveconf -n: # 2.3.19 (b3ad6004dc): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.19 (4eae2f79) # OS: Linux 5.10.0-13-amd64 x86_64 Debian 11.3 # Hostname: example.org auth_debug = yes auth_mechanisms = plain login auth_verbose = yes disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it doveadm_port = 12345 hostname = example.org login_log_format_elements = method=%m lip=%l %c %k mail_fsync = never mail_location = maildir:/var/vmail/%d/%n@%d/:INDEX=/var/vmail_indexes/%d/%n@%d/ mail_max_userip_connections = 200 mail_plugins = " notify replication fts fts_lucene" maildir_stat_dirs = yes maildir_very_dirty_syncs = yes managesieve_notify_capability = mailto managesieve_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 namespace 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/sql.conf.ext driver = sql } plugin { fts = lucene fts_autoindex = yes fts_autoindex_max_recent_msgs = 80 fts_index_timeout = 90 fts_lucene = whitespace_chars=@. last_login_dict = proxy::lastlogin last_login_key = # hidden, use -P to show it sieve_extensions = +vnd.dovecot.filter sieve_global_extensions = +vnd.dovecot.filter sieve_plugins = sieve_extprograms } protocols = imap pop3 lmtp sieve submission service aggregator { fifo_listener replication-notify-fifo { user = dovemail } unix_listener replication-notify { user = dovemail } } service dict { unix_listener dict { group = dovemail mode = 0660 user = root } } service doveadm { inet_listener { port = 12345 } } service imap-login { service_count = 1 } service imap { executable = imap } service lmtp { inet_listener lmtp { port = 24 } process_min_avail = 5 } service managesieve-login { inet_listener sieve { port = 4190 } } service pop3-login { service_count = 1 } service pop3 { executable = pop3 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { group = dovemail mode = 0600 user = dovemail } } service submission-login { inet_listener submissions { port = 465 ssl = yes } } ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL:!RC4::!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes submission_max_mail_size = 100000000 B submission_max_recipients = 100 submission_relay_host = 127.0.0.1 submission_relay_port = 10025 userdb { args = uid=1000 gid=1000 home=/var/vmail/%d/%n@%d/ plain_pass=#hidden_use-P_to_show# user_part=%n domain_part=%d driver = static } userdb { driver = prefetch } userdb { args = /etc/dovecot/sql.conf.ext driver = sql } valid_chroot_dirs = /var/vmail:/var/vmail_indexes protocol imap { mail_plugins = " notify replication fts fts_lucene imap_zlib last_login" } protocol pop3 { mail_plugins = " notify replication fts fts_lucene last_login" } protocol lmtp { mail_fsync = optimized mail_plugins = " notify replication fts fts_lucene sieve" }

2 3

[Rocky Linux 8.6] expire plugin file disappeared
by Masakazu Hirose 19 May '22

19 May '22

Hi, Rocky Linux Dovecot no longer reads the expired plugin from the library directory. I use Rocky Linux packages. Rocky or Redhat may fail to package. "/usr/lib64/dovecot/lib20_expire_plugin.so" seems to have disappeared in the new package. This may not be relevant to the Dovecot project. # /var/log/messages May 18 08:21:22 xxxxxxx dovecot[3508407]: imap(yyyyyyy): Error: Plugin 'expire' not found from directory /usr/lib64/dovecot # cat /etc/redhat-release Rocky Linux release 8.6 (Green Obsidian) # rpm -qa | grep dovecot dovecot-2.3.16-2.el8.x86_64 dovecot-mysql-2.3.16-2.el8.x86_64 Thank you, Masakazu

2 2

Re: Duplicate messages if message is moved when using dsync
by Thom Pol 18 May '22

18 May '22

Never mind. It did not work, issue still exists. I guess my network was a little slower when I thought it worked, so the emails were moved by my local client only after the sync had already happened between the servers. So, back to the original message. Anyone any idea how this moving on local client while the remote servers are still running the dsync can work correctly without getting a duplicate? Kind regards, Thom Pol On 18/05/2022 16:24, Paul Kudla (SCOM.CA Internet Services Inc.) wrote: > Your Welcome > > > > Happy Wednesday !!! > Thanks - paul > > Paul Kudla > > > Scom.ca Internet Services<http://www.scom.ca> > 004-1009 Byron Street South > Whitby, Ontario - Canada > L1N 4S3 > > Toronto 416.642.7266 > Main?1.866.411.7266 > Fax?1.888.892.7266

2 1

FTS Solr -- no commit on message delete
by Shawn Heisey 18 May '22

18 May '22

I've been chasing down oddities in behavior related to FTS Solr for a while now. First the part that isn't a problem with dovecot: In cases where message deletes bypass the Trash folder (such as shift-delete and normal workflow with the Drafts and Sent folders), Thunderbird does not inform Dovecot about the change in a way that causes Dovecot to delete the entries from Solr. When you completely exit Thunderbird, it then sends something to dovecot that results in the messages being deleted from Solr. Today I discovered a related problem that I think IS in Dovecot. I did a shift-delete on some messages, and then exited Thunderbird. Dovecot did delete the messages from Solr, but it did not send a commit to make those changes affect subsequent searches. Is this something worth opening a bug? Where would I do that? Thanks, Shawn

1 1

Upgrading from 2.3.18 --> 2.3.19
by Paul Kudla (SCOM.CA Internet Services Inc.) 18 May '22

18 May '22

Ok currently running 2.3.18 Would like to upgrade to 2.3.19 (to keep current) Since these are production servers can i down grade back to 2.3.18 if nessesary? Issues at hand is there seems to be conflicting messages about the replication being fixed or not ? so would like to basically try 2.3.19 to see if it fixes some of my issues (large folder counts etc failing to replicate properly) If it does or stays the same then i am ok with that for now. if 2.3.19 causes issues can i go back to 2.3.18 as i already have scripts etc sorting out the sync issues? pls advise -- Happy Wednesday !!! Thanks - paul Paul Kudla Scom.ca Internet Services <http://www.scom.ca> 004-1009 Byron Street South Whitby, Ontario - Canada L1N 4S3 Toronto 416.642.7266 Main 1.866.411.7266 Fax 1.888.892.7266

1 0

Re: Can sync/migrate all mail from remote imap account except the main "INBOX"
by Darren Mobley 18 May '22

18 May '22

Your example pointed me to a solution, excellent ! In my case I only needed one pass, I had to supply both imapc_list_prefix AND imapc_prefix AND the "namespace/inbox/prefix=" options. In case anyone runs into this in the future, here's a decent place to start for debugging: /usr/bin/doveadm -Dv -o imapc_list_prefix=INBOX -o imapc_prefix=INBOX. -o "namespace/inbox/prefix=" -o mail_fsync=never -o dsync_commit_msgs_interval=100 -o imapc_features=rfc822.size,fetch-headers -o dsync_features=empty-header-workaround -o imapc_port=143 -o imapc_host=127.0.0.1 -o imapc_password=yayforpasswords -o imapc_user=mailto:wah@hellodemo.ppl -o imapc_rawlog_dir=/tmp/raww -o mail_prefetch_count=20 sync -1Ru mailto:saywhatnow@letest.tld imapc: Thanks again for digging through the old emails where the magic incantations were, I really appreciate it! Darren ---- On Wed, 18 May 2022 05:19:53 -0500 Sami Ketola <sami(a)ketola.io> wrote ---- So adding "-o imapc_list_prefix=INBOX" to the doveadm command line should fix that, I would think ? So is the remote INBOX really 'INBOX' or 'INBOX.INBOX'? Command line arguments depend on which one it is. I managed to find some old archived emails with some tips on how it was solved back then. It was done with something like this: normal doveadm command: 'LOG_STDERR_TIMESTAMP="%b %d %H:%M:%S.%{usecs} " ' + '/usr/bin/doveadm' + dsync_debug + \ " -o mail_prefetch_count=10 " + \ " -o imapc_features=fetch-headers " + \ " -o imapc_host=" + legacy_host + \ " -o imapc_port=" + legacy_port + \ " -o imapc_list_prefix=" + imapc_prefix + \ " -o imapc_prefix=" + imapc_prefix + \ " -o imapc_user=" + self.legacy_user + \ " -o imapc_master_user=" + self.legacy_user + \ " -o imapc_password=" + imapc_master_password + \ " -o mail_fsync=never " + \ " backup -u " + self.uid + \ " -R imapc: >> " + dsync_err_log_location + self.uid + ".dsync_err.log 2>&1" If I remember correctly imapc_prefix was 'INBOX/' since this customer had INBOX/INBOX setup with / as separator. and if user had INBOX/INBOX detected this command was run on top of that to migrate INBOX: 'LOG_STDERR_TIMESTAMP="%b %d %H:%M:%S.%{usecs} " ' + '/usr/bin/doveadm' + dsync_debug + \ " -o namespace/inbox/prefix= " + \ " -o mail_prefetch_count=10 " + \ " -o imapc_features=fetch-headers " + \ " -o imapc_host=" + legacy_host + \ " -o imapc_port=" + legacy_port + \ " -o imapc_user=" + self.legacy_user + \ " -o imapc_master_user=" + self.legacy_user + \ " -o imapc_password=" + imapc_master_password + \ " -o mail_fsync=never " + \ " backup -u " + self.uid + \ " -m INBOX/INBOX " + \ " -R imapc: >> " + dsync_err_log_location + self.uid + ".dsync_err.log 2>&1" HTH, Sami

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