- dovecot - dovecot.org

Trying to track down the source of a corrupted cache error
by Grant Keller 10 Dec '24

10 Dec '24

Recently we have been seeing a steady increase (nothing too crazy, just more than usual) in "Deleting corrupted cache record" log errors. What struck me as weird was that it would be for the same message over and over, indicating that the deleted record was making it back into the cache. Digging into one, I realized that the first error was actually this: Dec 4 19:08:59 b.imapd.sonic.net dovecot[2696]: imap(xxx): session=wnZqMH0oHOViI3NN Error: Mailbox INBOX: Maildir filename has wrong W value, renamed the file from /var/spool/mail/17/62/xxx/cur/1733363505.M428026P1491073.b.imapd.sonic.net,S=8966052,W=12155730:2, to /var/spool/mail/17/62/xxx/cur/1733363505.M428026P1491073.b.imapd.sonic.net,S=8966052:2, Dec 4 19:08:59 b.imapd.sonic.net dovecot[2696]: imap(xxx): session=wnZqMH0oHOViI3NN Error: Mailbox INBOX: Deleting corrupted cache record uid=6430670: UID 6430670: Broken virtual size in mailbox INBOX: read(/var/spool/mail/17/62/xxx/cur/1733363505.M428026P1491073.b.imapd.sonic.net,S=8966052,W=12155730:2,): FETCH BODY[]<11796480.393216> got too little data: 359249 vs 359250 Also worth noting that the emails themselves do have a highly unusual number of carriage returns. What causes this and is there a way to fix it besides deleting the offending message?

1 0

lmtp(inge@xxx.com)<3161746><wLRLNlOvVmeSPjAAqrKISg>: sieve: msgid=<CACxh+MLsBhS7PY48A0KEm6Zpq0NB2a17TfE4=sid-ktSGbc5sg@mail.gmail.com>: fileinto action: failed to store into mailbox 'Spam': Mailbox doesn't exist: Spam
by leo1subscr＠zudiewiener.com 09 Dec '24

09 Dec '24

I'm trying to follow the instructions on "Replacing antispam plugin with IMAPSieve" https://doc.dovecot.org/2.3/configuration_manual/howto/antispam_with_sieve/ and have encountered the following error Dec 09 08:50:27 Error: lmtp(inge(a)xxx.com)<3161746><wLRLNlOvVmeSPjAAqrKISg>: sieve: msgid=<CACxh+MLsBhS7PY48A0KEm6Zpq0NB2a17TfE4=sid-ktSGbc5sg(a)mail.gmail.com>: fileinto action: failed to store into mailbox 'Spam': Mailbox doesn't exist: Spam This is a dump of the configuration ++++++++++++++++++++++++++ # 2.3.21 (47349e2482): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.21 (f6cd4b8e) # OS: Linux 6.8.0-49-generic x86_64 Ubuntu 24.04.1 LTS ext4 # Hostname: xxx.xxx.com auth_mechanisms = plain login dsync_features = empty-header-workaround imapc_features = rfc822.size fetch-headers imapc_host = imap2.xxx.com imapc_list_prefix = INBOX imapc_port = 993 imapc_user = %u log_path = /var/log/dovecot.log login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k mail_debug = yes mail_gid = vmail mail_location = maildir:/home/vmail/mailboxes/%d/%n mail_prefetch_count = 20 mail_privileged_group = vmail mail_uid = vmail 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 imapsieve vnd.dovecot.imapsieve 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 Spam { special_use = \Junk } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { imapsieve_mailbox1_before = file:/home/vmail/sieve/global/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/home/vmail/sieve/global/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * sieve = file:/home/vmail/sieve/%d/%n/scripts;active=/home/vmail/sieve/%d/%n/active-script.sieve sieve_before = /home/vmail/sieve/global/spam-global.sieve sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment sieve_pipe_bin_dir = /usr/lib/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms } protocols = " imap lmtp sieve" service 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 imaps { port = 993 ssl = yes } } 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 } } service managesieve { process_limit = 1024 } ssl = required ssl_cert = </etc/letsencrypt/live/xxx.com/fullchain.pem ssl_client_ca_dir = /etc/ssl 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 = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = " sieve" postmaster_address = adm(a)xxx.com } protocol imap { imap_idle_notify_interval = 29 mins mail_max_userip_connections = 20 mail_plugins = " quota imap_quota imap_sieve notify replication" } ++++++++++++++++++++++++++ Thanks Leo

1 0

Sieve not working again
by christian 08 Dec '24

08 Dec '24

Hello, For the past few weeks, I have been facing an issue where user Sieve scripts no longer work. I have configured the filtering of spam emails marked by Rspamd in a before.sieve script, and that works fine. However, the user scripts created via ManageSieve through the Roundcube webmailer do not function anymore. I suspect that this issue started after a Debian 12.6 system upgrade. Could it be that something fundamentally changed, or is Dovecot not fully compatible with Debian 12? However, I find that hard to believe. Despite repeatedly reinstalling the Dovecot environment and verifying file permissions and configurations multiple times, I haven't been able to resolve the issue. I’ve been running Sieve for over 15 years on various servers and have never encountered such problems. Unfortunately, the sieve_user_log = /var/log/dovecot/sieve.log file is not being created. The directory specified in sieve_trace_dir = /var/log/dovecot/sieve is created, but it only logs actions from before.sieve, not from user Sieve scripts. Here are the relevant settings from 90-sieve.conf: plugin { sieve_extensions = +editheader sieve = file:/var/customers/sieve/%u/;active=/var/customers/sieve/%u/.dovecot.sieve sieve_dir = /var/customers/sieve/ sieve_default = /var/customers/sieve/default.sieve sieve_global = /var/customers/sieve/global.sieve sieve_before = /var/customers/sieve/before.sieve sieve_user_log = /var/log/dovecot/sieve.log sieve_trace_dir = /var/log/dovecot/sieve sieve_compile_binary = yes sieve_trace_level = matching sieve_trace_debug = yes sieve_debug = yes } Here’s a log entry from info_log_path = /var/log/dovecot/dovecot-lda.log: Dec 08 12:57:44 lda(info(a)domain.info)<2664475><r1+hOreJVWcbqCgAF7VarQ>: Info: sieve: msgid=<20241208115741.7792d7fe54743ef8(a)fgfunnelsmail.com>: fileinto action: stored mail into mailbox 'INBOX' Here’s a log entry from debug.log: Dec 08 13:12:55 lda(info(a)domain.info)<2680802><SNQDB0eNVWfi5ygAF7VarQ>: Debug: sieve: Using the following location for user's Sieve script: /var/customers/sieve/info(a)domain.info/.dovecot.sieve However, the script is not being applied. Contents of /var/customers/sieve/info(a)domain.info: /var/customers/sieve/info(a)domain.info # ls -lah total 24K drwxr-x--- 3 vmail vmail 4.0K Dec 8 13:07 . drwxr-x--- 51 vmail vmail 4.0K Dec 7 19:40 .. lrwxrwxrwx 1 vmail vmail 12 Dec 7 15:23 .dovecot.sieve -> filter.sieve -rwxr-x--- 1 vmail vmail 212 Dec 7 19:40 .dovecot.svbin -rw-r----- 1 vmail vmail 95 Dec 8 13:07 filter.sieve -rwxr-x--- 1 vmail vmail 212 Dec 7 19:40 filter.svbin drwxr-x--- 2 vmail vmail 4.0K Dec 8 13:07 tmp Contents of filter.sieve: require ["copy"]; # rule: [Redirect] if true { redirect :copy "christian(a)domain.info"; } The sieve_user_log = /var/log/dovecot/sieve.log file remains empty. Write permissions are correct, and there are no indications of errors in the dovecot.log or debug.log. Thanks for infos and your help Christian

1 0

Info on 'sieve_pipe_bin_dir' needed
by leo1subscr＠zudiewiener.com 06 Dec '24

06 Dec '24

I'm trying to follow the instruction https://doc.dovecot.org/2.3/configuration_manual/howto/antispam_with_sieve/ to setup IMAPSieve I cannot find any info on what sieve_pipe_bin_dir should point to. Any references I have found to this point to the old wiki. My current spam learning sieve scripts are in file:/home/vmail/sieve/global/ Should sieve_pipe_bin_dir point to this? Thanks, Leo

2 1

Dovecot IMAP Mail latency
by tamilarasan_ext＠iomd.info 05 Dec '24

05 Dec '24

We are working on importing emails from Gmail to Dovecot. During the process, all emails are written to a new directory within the mail folder. For fetching the emails, we are using the IMAP protocol with the imap_tools Python library. After importing, we run the IMAP fetch at 5-second intervals. However, the newly imported emails do not appear immediately. They only become available after 30 to 40 seconds. How can we resolve this issue? What steps can we take to debug and identify the source of the delay?

2 1

Migrating GMail to Dovecot using imapc
by Jan Naumann 30 Nov '24

30 Nov '24

Dear Dovecot community, I try to migrate a GMail mailbox to Dovecot using `doveadm backup -R imapc:`. Since it seems that GMail disabled the login without XOAUTH2, I cannot figure out how to authenticate dovecot to GMail. Could you point me in the right direction? Thank you in advance! Best regards, Jan Here the commands and config I am using: # dovecot --version 2.3.19.1 (9b53102964) # doveadm -D -c gmail.conf backup -R -u user-gmail imapc: # cat gmail.conf !include /etc/dovecot/dovecot.conf imapc_host=imap.gmail.com imapc_port=993 imapc_ssl=imaps imapc_features=rfc822.size fetch-headers gmail-migration mail_prefetch_count=20 imapc_sasl_mechanisms=XOAUTH2 OAUTHBEARER PLAIN rawlog_dir = /tmp/rawlog imapc_rawlog_dir = /tmp/rawlog imapc_user=user(a)googlemail.com imapc_password=pw # cat /tmp/rawlog/20241118-114553.246444.1.in 1731926753.488821 * OK Gimap ready for requests from <ip> <base64> 1731926753.503819 * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 XYZZY SASL-IR AUTH=XOAUTH2 AUTH=PLAIN AUTH=PLAIN-CLIENTTOKEN AUTH=OAUTHBEARER 1731926753.503819 1 OK Thats all she wrote! <base64> 1731926753.806967 + <base64> # cat /tmp/rawlog/20241118-114553.246444.1.out 1731926753.488935 1 CAPABILITY 1731926753.504048 2 AUTHENTICATE XOAUTH2 <base64>

14 51

dovecot, virtiofs, fchown, invalid argument
by Кирилл Шигапов 29 Nov '24

29 Nov '24

Hello! Dovecot version: 2.3.16 (7e2e900c1a) dovecon -n deliver_log_format = from=%{from}, envelope_sender=%{from_envelope}, > subject=%{subject}, msgid=%m, size=%{size}, > delivery_time=%{delivery_time}ms, %$ > dict { > acl = mysql:/etc/dovecot/dovecot-share-folder.conf > lastlogin = mysql:/etc/dovecot/dovecot-last-login.conf > quotadict = mysql:/etc/dovecot/dovecot-used-quota.conf > } > first_valid_uid = 2000 > last_valid_uid = 2000 > listen = * [::] > lock_method = dotlock > login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c > %k session=<%{session}> > mail_gid = 2000 > mail_location = maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/ > mail_plugins = quota mailbox_alias acl mail_log notify > mail_uid = 2000 > 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 = yes > location = > mailbox Archive { > auto = no > special_use = \Archive > } > mailbox Archives { > auto = no > special_use = \Archive > } > mailbox "Deleted Messages" { > auto = no > special_use = \Trash > } > mailbox Drafts { > auto = subscribe > special_use = \Drafts > } > mailbox Junk { > auto = subscribe > special_use = \Junk > } > mailbox "Junk E-mail" { > auto = no > special_use = \Junk > } > mailbox Sent { > auto = subscribe > special_use = \Sent > } > mailbox "Sent Items" { > auto = no > special_use = \Sent > } > mailbox "Sent Messages" { > auto = no > special_use = \Sent > } > mailbox Spam { > auto = no > special_use = \Junk > } > mailbox Trash { > auto = subscribe > special_use = \Trash > } > prefix = > separator = / > type = private > } > namespace { > list = children > location = maildir:%%Lh/Maildir/:INDEX=%%Lh/Maildir/Shared/%%Ld/%%Ln > prefix = Shared/%%u/ > separator = / > subscriptions = yes > type = shared > } > passdb { > args = /etc/dovecot/dovecot-mysql.conf > driver = sql > } > passdb { > args = /etc/dovecot/dovecot-master-users > driver = passwd-file > master = yes > } > plugin { > acl = vfile > acl_shared_dict = proxy::acl > last_login_dict = proxy::lastlogin > last_login_key = # hidden, use -P to show it > mail_log_events = delete undelete expunge copy mailbox_create > mailbox_delete mailbox_rename > mail_log_fields = uid box msgid size from subject flags > mailbox_alias_new = Sent Messages > mailbox_alias_new2 = Sent Items > mailbox_alias_old = Sent > mailbox_alias_old2 = Sent > quota = dict:user::proxy::quotadict > quota_grace = 10%% > quota_status_nouser = DUNNO > quota_status_overquota = 552 5.2.2 Mailbox is full > quota_status_success = DUNNO > quota_warning = storage=100%% quota-warning 100 %u > quota_warning2 = storage=95%% quota-warning 95 %u > quota_warning3 = storage=90%% quota-warning 90 %u > quota_warning4 = storage=85%% quota-warning 85 %u > sieve = ~/sieve/dovecot.sieve > sieve_before = /var/vmail/sieve/dovecot.sieve > sieve_dir = ~/sieve > sieve_global_dir = /var/vmail/sieve > sieve_max_redirects = 30 > sieve_vacation_send_from_recipient = yes > } > protocols = pop3 imap sieve lmtp > service auth { > unix_listener /var/spool/postfix/private/dovecot-auth { > group = postfix > mode = 0666 > user = postfix > } > unix_listener auth-master { > group = vmail > mode = 0666 > user = vmail > } > unix_listener auth-userdb { > group = vmail > mode = 0660 > user = vmail > } > } > service decode2text { > executable = script /usr/libexec/dovecot/decode2text.sh > unix_listener decode2text { > mode = 0666 > } > user = dovecot > } > service dict { > unix_listener dict { > group = vmail > mode = 0660 > user = vmail > } > } > service imap-login { > process_limit = 500 > service_count = 1 > } > service indexer-worker { > process_limit = 0 > vsz_limit = 2 G > } > service lmtp { > executable = lmtp -L > inet_listener lmtp { > address = 127.0.0.1 > port = 24 > } > process_min_avail = 5 > unix_listener /var/spool/postfix/private/dovecot-lmtp { > group = postfix > mode = 0600 > user = postfix > } > user = vmail > } > service managesieve-login { > inet_listener sieve { > address = 127.0.0.1 > port = 4190 > } > } > service pop3-login { > service_count = 1 > } > service quota-status { > client_limit = 1 > executable = quota-status -p postfix > inet_listener { > address = 127.0.0.1 > port = 12340 > } > } > service quota-warning { > executable = script /usr/local/bin/dovecot-quota-warning.sh > unix_listener quota-warning { > group = vmail > mode = 0660 > user = vmail > } > } > service stats { > fifo_listener stats-mail { > group = vmail > mode = 0664 > user = vmail > } > inet_listener { > address = 127.0.0.1 > port = 24242 > } > unix_listener stats-writer { > group = vmail > mode = 0660 > user = vmail > } > } > ssl = required > ssl_cert = </etc/pki/tls/certs/iRedMail.crt > ssl_cipher_list = EECDH+CHACHA20:EECDH+AESGCM:EDH+AESGCM:AES256+EECDH > ssl_dh = # hidden, use -P to show it > ssl_key = # hidden, use -P to show it > ssl_prefer_server_ciphers = yes > syslog_facility = local5 > userdb { > args = /etc/dovecot/dovecot-mysql.conf > driver = sql > } > protocol lda { > lda_mailbox_autocreate = yes > lda_mailbox_autosubscribe = yes > mail_plugins = quota mailbox_alias acl mail_log notify sieve last_login > } > protocol lmtp { > lmtp_save_to_detail_mailbox = yes > mail_plugins = quota mailbox_alias acl mail_log notify sieve last_login > recipient_delimiter = + > } > protocol imap { > imap_client_workarounds = tb-extra-mailbox-sep > mail_max_userip_connections = 30 > mail_plugins = quota mailbox_alias acl mail_log notify imap_quota > imap_acl last_login > } > protocol pop3 { > mail_max_userip_connections = 30 > mail_plugins = quota mailbox_alias acl mail_log notify last_login > pop3_client_workarounds = outlook-no-nuls oe-ns-eoh > pop3_uidl_format = %08Xu%08Xv > } We are using virtiofs share mounted to /var/vmail When dovecot tries to make a directory structure, it fails with error - fchown: Invalid argument strace doveadm mailbox create -u testuser(a)testdomain.com Trash ... mkdir("/var/vmail/vmail1/ testdomain.com/t/e/s/testuser-2024.11.25.12.58.50//Maildir/.Trash", 0700) = 0 umask(077) = 000 openat(AT_FDCWD, "/var/vmail/vmail1/ testdomain.com/t/e/s/testuser-2024.11.25.12.58.50//Maildir/.Trash", O_RDONLY) = 11 fchown(11, -1, -1) = -1 EINVAL (Invalid argument) close(11) = 0 rmdir("/var/vmail/vmail1/ testdomain.com/t/e/s/testuser-2024.11.25.12.58.50//Maildir/.Trash") = 0 ... So there is no permission issue, directory successfully created. It seems that virtiofs not allowing uid=-1 and gid=-1 I write a small C program for testing. And when using fchown($FileDescriptor, 2000, 2000) there is no error. I can't find a way to tell dovecot to use uid & gid 2000 when he tries to do fchown. If I create a directory structure manually, everything works well. Maybe we can make some parameter in config, telling that we are using virtiofs and skip EINVAL when doing fchown...

3 3

Auth timeout after reload
by rudolf＠padaru.de 29 Nov '24

29 Nov '24

Hello everyone, I have a Dovecot running and can often observe that the auth process goes wrong if a reload occurs at the moment of authentication. I have installed dovecot 2.3.21.1 on ubuntu 20. Whether the error also occurs under other versions, I cannot say at the moment. I have included three examples from the mail log: ## start logs ## # 1 # Nov 27 11:28:18 <myServer> dovecot[946292]: auth: Debug: sql(<myUser>,<myIP>,<I1eibOInIOW5zIKi>): Finished passdb lookup Nov 27 11:28:18 <myServer> dovecot[946292]: auth: Debug: auth(<myUser>,<myIP>,<I1eibOInIOW5zIKi>): Auth request finished Nov 27 11:30:49 <myServer> dovecot[946292]: auth: Error: plain(<myUser>,<myIP>,<I1eibOInIOW5zIKi>): Request 946296.13397 timed out after 151 secs, state=3 Nov 27 11:28:18 <myServer> systemd[1]: Reloading Dovecot IMAP/POP3 email server. # 2 # Nov 27 09:05:08 <myServer> dovecot[2940195]: auth: Debug: auth(<myUser><myIP>,<nK2cbOAnaMGiIdFS>): Auth request finished Nov 27 09:07:38 <myServer> dovecot[2940195]: auth: Error: plain(<myUser>,<myIP>,<nK2cbOAnaMGiIdFS>): Request 2940206.363 timed out after 150 secs, state=3 Nov 27 09:05:07 <myServer> systemd[1]: Reloading Dovecot IMAP/POP3 email server. # 3 # Nov 27 10:02:18 <myServer> dovecot[3736041]: auth: Debug: auth(<myUser><myIP>,<1v4HOeEnWtG5zIKi>): Auth request finished Nov 27 10:04:48 <myServer> dovecot[3736041]: auth: Error: plain(<myUser>,<myIP>,<1v4HOeEnWtG5zIKi>): Request 3736048.4962 timed out after 150 secs, state=3 Nov 27 10:02:18 <myServer> systemd[1]: Reloading Dovecot IMAP/POP3 email server. ## end logs ## You can clearly see that the sql query works, but then the auth-worker seems to hang. I suspect that the auth-worker sends the request to the DB, receives the response and is then killed before it can log in the user via imap. This then leads to some users not being able to log in for a long time. I write many configs on the server automatically, then I always run a reload so that the changed config is accepted. Is this a bug or do I have to change something in my setup? [Logo]<https://www.padaru.de/> Pascal Rudolf | Geschäftsführer PADARU-IT | Oppacher Straße 40 | 02689 Wehrsdorf @: rudolf(a)padaru.de | www: padaru.de<https://padaru.de/> mobil: +49 (0) 17 772 595 32

1 0

Error: Mailbox INBOX: open, missing +r perm
by drinaldi＠trustitalia.it 29 Nov '24

29 Nov '24

Hi Guys, Since few weeks, our email server based on Dovecot and Postfix has been returning this error with some users without any changes made to the configuration: mailserver dovecot: imap(user)<1115049><sEfO8d8nm/1dIlwX>: Error: Mailbox INBOX: open(/mnt/mail-storage/user/Maildir/cur/1732656368.M835097P860226.mailserver,S=43548,W=44150:2,) failed: Permission denied (euid=501(vmail) egid=501(vmail) missing +r perm: /mnt/mail-storage/user/Maildir/cur/1732656368.M835097P860226.mailserver,S=43548,W=44150:2, stat(/mnt/mail-storage/user/Maildir/cur/1732656368.M835097P860226.mailserver,S=43548,W=44150:2,) failed: Permission denied) mailserver dovecot: imap(user)<1115049><sEfO8d8nm/1dIlwX>: Disconnected: FETCH failed: Mailbox INBOX: open(/mnt/mail-storage/user/Maildir/cur/1732656368.M835097P860226.mailserver,S=43548,W=44150:2,) failed: Permission denied (euid=501(vmail) egid=501(vmail) missing +r perm: /mnt/mail-storage/user/Maildir/cur/1732656368.M835097P860226.mailserver,S=43548,W=44150:2, stat(/mnt/mail-storage/user/Maildir/cur/1732656368.M835097P860226.mailserver,S=43548,W=44150:2,) failed: Permission denied) in=429 out=24093 deleted=0 expunged=0 trashed=0 hdr_count=2 hdr_bytes=6437 body_count=0 body_bytes=0 This is the stat of the file after reboot the server: stat 1732656368.M835097P860226.ganimede,S=43548,W=44150:2, File: 1732656368.M835097P860226.ganimede,S=43548,W=44150:2, Size: 43548 Blocks: 88 IO Block: 262144 regular file Device: 0,41 Inode: 2155401218 Links: 1 Access: (0600/-rw-------) Uid: ( 501/ vmail) Gid: ( 501/ vmail) Access: 2024-11-26 22:26:09.925862755 +0100 Modify: 2024-11-26 22:26:10.005861434 +0100 Change: 2024-11-26 22:26:11.175842122 +0100 Birth: - The strange thing is that the issue seems to this impact only some Users and looks like the error disappear after restarting the server, and reappear few time later. Dovecot -n: # 2.3.19.1 (9b53102964): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.19 (4eae2f79) # OS: Linux 6.1.0-26-amd64 x86_64 Debian 12.7 auth_mechanisms = plain login default_vsz_limit = 1 G doveadm_password = # hidden, use -P to show it doveadm_port = 12345 mail_gid = 501 mail_location = maildir:~/Maildir:INDEX=/var/indexes/%n mail_max_userip_connections = 50 mail_plugins = " notify replication zlib" mail_privileged_group = vmail mail_uid = 501 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 vacation-seconds imapflags notify namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox "Posta inviata" { special_use = \Sent } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } plugin { mail_replica = tcp:192.168.3.250 sieve = file:/var/www/html/ooo/%n;active=/var/www/html/ooo/%n/script sieve_default = /var/www/html/ooo/default.sieve sieve_duplicate_default_period = 14d sieve_duplicate_max_period = 7d sieve_extensions = +duplicate +notify +imapflags +vacation-seconds sieve_user_log = /var/www/html/ooo/%n/sieve_error.log } protocols = " imap lmtp sieve pop3" replication_max_conns = 2 service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-master { group = vmail mode = 0660 user = vmail } } service doveadm { inet_listener { port = 12345 } } service imap-login { process_limit = 200 } service imap { vsz_limit = 1 G } service lmtp { process_min_avail = 5 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } user = vmail } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 10 service_count = 1 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 user = vmail } } service stats { unix_listener stats-reader { group = vmail mode = 0666 user = vmail } unix_listener stats-writer { group = vmail mode = 0666 user = vmail } } ssl_cert = </etc/dovecot/private/chain-star_trustitalia_it.pem ssl_cipher_list = ALL:!LOW:!aNULL:!eNULL:!SSLv2:!RC4:!MD5:!DES:!EXP:!SEED:!IDEA:!3DES ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } protocol lmtp { mail_plugins = " notify replication zlib sieve quota zlib" postmaster_address = postmaster(a)trustitalia.it } protocol lda { auth_socket_path = /var/run/dovecot/auth-master hostname = ganimede.trustitalia.it mail_plugins = " notify replication zlib sieve quota zlib" } protocol imap { mail_plugins = " notify replication zlib zlib" } protocol sieve { mail_max_userip_connections = 10 managesieve_implementation_string = Dovecot Pigeonhole managesieve_logout_format = bytes=%i/%o managesieve_max_compile_errors = 5 managesieve_max_line_length = 64 k } protocol pop3 { mail_plugins = " notify replication zlib zlib" } Thanks

2 2

"INBOX can't be deleted" error when syncing from imapc
by Andy Balholm 28 Nov '24

28 Nov '24

I'm syncing mail from an IMAP server to local Maildirs with `doveadm backup -R`, and I sometimes get an error the second time I sync an account: > Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted. I've figured out that the sync completes the first time without an error, but the UIDVALIDITY of the INBOX Maildir doesn't match the UIDVALIDITY on the IMAP server. Then the second time doveadm detects the mismatch and wants to delete the INBOX, but it can't because Maildir INBOXes can't be deleted. So I think the root cause is that the INBOX is being created with the wrong UIDVALIDITY in the first place. It only seems to happen when there are no messages in the INBOX on the server at the time the Maildir is created, but it doesn't seem to happen all the time. Is there anything I can do to make the sync job run smoothly? Andy

1 0