- dovecot - dovecot.org

Bug with shared access to mailbox
by van der Kamp, John 15 Aug '16

15 Aug '16

Hello, I'm testing dovecot with some setups, and one of them is with shared mailboxes. The test I wrote will create and delete mail using multiple connections to the same user and folder. Each connection makes a couple of mails, remembers the uid from APPENDUID, and will delete those emails again. At the end of the test I expect an empty folder. This is not what happens. At the end I still have several mails in the folder. I lack insight in the dovecot source to tell exactly what's going on. I've tested this with different setups: 1) local system user, connecting over localhost -> bug is present 2) local system user, connecting over internet -> bug is present, but is harder to reproduce 3) dovecot as proxy to another imap server -> bug is present In step 3, you can even setup a dovecot to be a proxy to another dovecot server. >From logging in the other imap server I've seen that a client command to the proxy like: TAG UID STORE 1:3 +FLAGS (\Deleted) TAG UID EXPUNGE 1:3 will be sent to the other imap server in 3 steps, one for each message. When running the test with multiple threads, that logging shows that some uids are never sent to the other imap server, and some uids are sent over different connections than they original were sent to. (Thread 1 deletes 1:3, Thread 2 deletes 4:6, the proxy of Thread 1 might expunge messages from Thread 2 and vice versa). Attached is a python script which tests the behavior. The script expects a file named "testmail.eml" to upload to the imap server. I used an email which was about 75 kB. I tested using version: 2.2.22 (fe789d2). Let me know if I can help in any other way too. John

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Save user passwords in clear text
by Lefteris Tsintjelis 13 Aug '16

13 Aug '16

Is it possible to save user passwords as clear text through dovecot? I am currently using MD5 passwords and I allow only "plain and login” mechanisms but I want to switch my database to clear text as this will give me the ability to use more mechanisms such as CRAM-MD5. Is this possible? Thank you

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Sieve with many criteria
by Vince42 13 Aug '16

13 Aug '16

Hi, currently I am putting all my filter strings into a big array in my sieve script. I wonder whether this is the best way to store many criteria. Any suggestions? -- Cheers, \\|// Vince (o o) ----------------------------ooO-(_)-Ooo------------------------- ''' (o)_(o) [ ][0][ ] ô¿ô (=°o°=) World Domination by Copy and Paste [ ][ ][0] - (")_(") [0][0][0] () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments Ooo. ---------------------------.ooO----( )------------------------- ( ) (_/ \_)

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receiving and associating emails to single a/c
by David Tildesley 13 Aug '16

13 Aug '16

Hi,Looking for advice.Scenario: we have a dmz mta that currently redirects received emails for a selection of email domains to specific internal ms exchange servers. We want this mta to redirect incoming customer emails directed to a set of email addresses numbering about 30, to a dovecot server and associate these emails to a single dovecot user account so that a contact Centre platform can pull these emails on a frequent cycle.How to go about configuring this on the dovecot? I assume a postfix server needs to be installed on the dovecot server for the dmz mta to send these emails to dovecot inbox? Any advice most appreciated. David. Sent from Yahoo Mail on Android

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Dovecot Director self ip
by Tomaž 12 Aug '16

12 Aug '16

Hello everybody! I kindly ask somebody to help me with this problem. I'm trying to configure Dovecot proxy with Director. On the same machine is KeepAlived that needs this configured to bind non local IP: sysctl net.ipv4.ip_nonlocal_bind=1 But as already mentioned in this email: http://www.dovecot.org/list/dovecot/2012-November/087033.html Dovecot Director needs sysctl net.ipv4.ip_nonlocal_bind=0 (if this is set, everything works ok, but we break keepalived) because otherwise the second server uses IP from the first server as "self". Is it possible to configure this some other way, so Dovecot Director doesn't try to bind to all IPs and because of above configuration, uses the first one that binds. This is the result from director status on server 1: root@u1:~# doveadm director ring status director ip port type last failed status 172.16.100.191 9090 self never handshaking 172.16.100.192 9090 never handshaking and server 2: root@u2:/var/log# doveadm director ring status director ip port type last failed status 172.16.100.191 9090 self never handshaking 172.16.100.192 9090 never My dovecot config: http://pastebin.com/RnmHRWhY Thank you very much! Thomas

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dovecot 2.2.25 & deleting emails from \Junk special-use assigned folder
by Marc Jauvin 11 Aug '16

11 Aug '16

Since our cPanel installation upgraded Dovecot from 2.2.23 to 2.2.25, deleting emails located in the Junk folder (\Junk special-use), the emails end-up in the \Trash special-use folder instead of being purged as before. Is there something that changed or this some configuration I am missing? Thanks for any help regarding this. -- Marc Jauvin Register4less, Inc. 514-905-6500 x403

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Header's corrupted flag is set
by Tom Sommer 11 Aug '16

11 Aug '16

I have a ton of these errors in my logs: Aug 11 14:16:04 imap(xxxx(a)xxxxx.xxxx): Error: Corrupted index file...../dovecot.list.index: Header's corrupted flag is set Does Dovecot not automatically fix these? Or what is the correct action to take? -- Tom

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news page not been updated
by Chris 11 Aug '16

11 Aug '16

The url http://www.dovecot.org/doc/NEWS has not been updated for a while, I suggest either killing it or updating it again. Chris

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Re: Replication issue EOF or unknown flag V
by Rick Romero 11 Aug '16

11 Aug '16

Quoting Rick Romero <rick(a)havokmon.com>: > Hi, I'm trying to sort out a replication error: It was working > initially, but now it no longer works. Dovecot 2.2.25, Maildir format > On the 'master' side I see : Aug 09 14:02:17 dsync-server(rick at > havokmon.com[1]): Error: read(172.16.1.86) failed: EOF (version not > received) Aug 09 14:02:17 dsync-local(rick at havokmon.com[1]): Error: > read(172.16.1.86) failed: EOF (version not received) On the 'slave' > side I see: Aug 09 14:02:10 doveadm(172.16.1.81,rick at > havokmon.com[1]): Error: doveadm client: Unknown flag: V Aug 09 14:02:17 > doveadm(172.16.1.81,rick at havokmon.com[1]): Error: doveadm client: > Unknown flag: V on FreeBSD 10.2. I changed my mailbox to be on the 'slave' server, and the error messages switched sides. # 2.2.25 (7be1766): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.15 (97b3da0) # OS: FreeBSD 10.2-RELEASE amd64 auth_master_user_separator = * auth_mechanisms = plain login auth_username_translation = %@ auth_verbose = yes debug_log_path = /var/log/dovecot-debug.log default_internal_user = vpopmail default_login_user = dovecot default_vsz_limit = 1536 M disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it doveadm_port = 12345 first_valid_gid = 89 first_valid_uid = 89 last_valid_gid = 89 last_valid_uid = 89 log_path = /dev/stderr login_greeting = Dovecot ready. login_trusted_networks = 172.16.1.0/24 mail_fsync = never mail_plugins = " quota zlib stats notify replication" mail_privileged_group = mail mailbox_list_index = 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 compat { alias_for = hidden = yes inbox = no list = no location = prefix = INBOX. separator = . } namespace inbox { inbox = yes location = prefix = separator = . } passdb { args = /usr/local/etc/dovecot/dovecot-master-sql.conf driver = sql master = yes pass = yes } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } plugin { mail_replica = tcp:172.16.1.81 quota = maildir quota_rule = Trash:storage=+10%% stats_refresh = 30 secs stats_track_cmds = yes } replication_max_conns = 15 service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = vpopmail } unix_listener replication-notify { mode = 0666 user = vpopmail } } service anvil { client_limit = 4799 } service auth-worker { user = $default_internal_user } service auth { client_limit = 4996 unix_listener auth-master { mode = 0600 } } service config { unix_listener config { user = vpopmail } } service doveadm { inet_listener { port = 12345 } user = vpopmail } service imap-login { process_limit = 2548 process_min_avail = 25 service_count = 1 } service imap-postlogin { executable = script-login /usr/local/etc/dovecot/lastauth-imap.sh user = vpopmail } service imap { executable = /usr/local/libexec/dovecot/imap imap-postlogin process_limit = 2048 } service lmtp { executable = lmtp -L inet_listener lmtp { port = 24 } user = vpopmail } service pop-postlogin { executable = script-login /usr/local/etc/dovecot/lastauth-pop.sh user = vpopmail } service pop3-login { process_limit = 2048 process_min_avail = 15 service_count = 1 } service pop3 { executable = /usr/local/libexec/dovecot/pop3 pop-postlogin } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } service stats { fifo_listener stats-mail { mode = 0600 user = vpopmail } } shutdown_clients = no ssl_cert = </etc/ssl/mail.pem ssl_key = </etc/ssl/mail.key userdb { driver = prefetch } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } verbose_proctitle = yes protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_max_userip_connections = 25 mail_plugins = " quota zlib stats notify replication imap_zlib quota imap_quota notify replication" } protocol pop3 { mail_max_userip_connections = 25 mail_plugins = quota notify replication namespace inbox { location = mailbox Spam { auto = no autoexpunge = 1 weeks special_use = \Junk } mailbox Trash { auto = no autoexpunge = 2 weeks special_use = \Trash } prefix = } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } protocol lda { mail_plugins = quota notify replication userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql name = } } protocol lmtp { auth_debug = no info_log_path = /var/log/dovecot-lmtp.log mail_plugins = sieve quota notify replication namespace inbox { location = mailbox Spam { auto = no autoexpunge = 1 weeks special_use = \Junk } mailbox Trash { auto = no autoexpunge = 2 weeks special_use = \Trash } prefix = } postmaster_address = admin(a)domain.com userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql name = } } driver = mysql connect = host= user= password= dbname=vpopmail default_pass_scheme = CRYPT password_query = SELECT CONCAT(pw_name, '@', pw_domain) AS user, pw_passwd AS password, IF(host IS NULL or host = '','172.16.1.86', host ) as host, 'Y' AS proxy_maybe, pw_dir as userdb_home, 89 as userdb_uid, 89 as userdb_gid FROM vpopmail WHERE pw_name = '%n' AND pw_domain = '%d' AND !(pw_gid & 8) AND !(pw_gid & 2) AND ('%r'!='172.16.1.93' or !(pw_gid & 4)) AND ('%r'!='172.16.1.92' or !(pw_gid & 4)) user_query = SELECT CONCAT(pw_name, '@', pw_domain) AS user, "89" as uid, "89" as gid, IF(host IS NULL or host = '','172.16.1.86', host ) as host, 'Y' AS proxy_maybe, pw_dir as home, pw_dir as mail_home, CONCAT('maildir:', pw_dir , '/Maildir/' ) as mail_location FROM vpopmail WHERE pw_name = '%n' AND pw_domain = '%d' iterate_query = SELECT CONCAT(pw_name, '@', pw_domain) AS user from vpopmail Links: ------ [1] http://dovecot.org/cgi-bin/mailman/listinfo/dovecot

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Replication issue EOF or unknown flag V
by Rick Romero 09 Aug '16

09 Aug '16

Hi, I'm trying to sort out a replication error: It was working initially, but now it no longer works. Dovecot 2.2.25, Maildir format Delivering via LMTP. If I run doveadm replicator replicate rick(a)havokmon.com On the 'master' side I see : Aug 09 14:02:17 dsync-server(rick(a)havokmon.com): Error: read(172.16.1.86) failed: EOF (version not received) Aug 09 14:02:17 dsync-local(rick(a)havokmon.com): Error: read(172.16.1.86) failed: EOF (version not received) On the 'slave' side I see: Aug 09 14:02:10 doveadm(172.16.1.81,rick(a)havokmon.com): Error: doveadm client: Unknown flag: V Aug 09 14:02:17 doveadm(172.16.1.81,rick(a)havokmon.com): Error: doveadm client: Unknown flag: V This seems to just happen with my mailbox, so I've completely removed it on both sides, to no avail. My mailbox was re-created on the slave side, but nothing else has occurred (no folders or new mail). #doveadm user rick(a)havokmon.com field value uid 89 gid 89 home /home/prime/domains/havokmon.com/rick mail maildir:/home/prime/domains/havokmon.com/rick/Maildir/ host 172.16.1.81 proxy_maybe Y mail_home /home/prime/domains/havokmon.com/rick mail_location maildir:/home/prime/domains/havokmon.com/rick/Maildir/ Any thoughts?

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