- dovecot - dovecot.org

[Dovecot] Slow connections with POP3 service
by V S Rao 29 Apr '09

29 Apr '09

Hi All, I am facing a very strange issue with the pop3 server for the past one week. I run my mail service using sendmail & use UW-IMAP for POP3 & IMAP service. We have around 5000 users. Suddenly for the past one week I am facing very slow connections for POP3 alone on that server. Other services such as SMTP, IMAP, telnet, ssh etc work fine. Assuming that UW-IMAP may have an issue, I download the latest dovecot, compiled it and installed it. This also gives the same issue. I do not any firewall issues nor iptables is enabled. I have checked on the network to ensure that I do not have any kind of virus or DoS attacks using an IDS. I am unable to see any 'Strange' messages in /var/log/messages or maillog. What is strange is that it works one day without any issues and the next day the problem persists. Even a telnet to localhost on port 110 is very very slow. Can someone help with any ideas on how to troubleshoot? This is our production box. Thanks V S Rao

2 1

[Dovecot] Virtual plugin, timeout leaks
by Brandon Lamb 29 Apr '09

29 Apr '09

Getting these Warning: imap <brandonl(a)pacwebdev.com>: Timeout leak: 0x461bd0 /etc/dovecot/virtual/Allmail/dovecot-virtual * -Trash -Trash/* all /etc/dovecot/virtual/INBOX/dovecot-virtual virtual/Allmail inthread x-references2 x-mailbox INBOX /etc/dovecot/dovecot.conf namespace private { prefix = "" separator = / list = yes hidden = yes } namespace private { prefix = virtual/ separator = / list = no hidden = yes inbox = yes location = virtual:/etc/dovecot/virtual:INDEX=~/dovecot-index } namespace private { prefix = RealMails/ separator = / list = no hidden = yes }

2 1

[Dovecot] Links on MainConfig wiki page not working
by Matthijs Kooijman 29 Apr '09

29 Apr '09

Hi all, while looking through the wiki page MainConfig, I noticed a lot of wannabe-links, for example: <doc/wiki/SSL> This looks like it should have been converted to a wiki link automatically, but apparently isn't. Would be good to have this fixed? Gr. Matthijs

2 1

[Dovecot] Quota/Dict Postgres Trigger
by Warren Volz 29 Apr '09

29 Apr '09

I posted the trigger for v1.1 versions of Dovecot on the Wiki (http://wiki.dovecot.org/Quota/Dict ) and while I understand the comment posted about two process inserting at the same time, I'm not sure I understand how this is fixed in v1.2 other than via the revised trigger in the Wiki. Does someone have a known working trigger that will handle a double insert correctly? Also, out of curiosity why wasn't the code for dict written to do an update first and then an insert if this failed? That would eliminate the need for this trigger. Thanks. -Warren

3 2

[Dovecot] Mail statistics
by Timo Sirainen 29 Apr '09

29 Apr '09

I just committed a mail statistics gathering patch to v1.2: http://hg.dovecot.org/dovecot-1.2/rev/fdaf0bda70d5 It keeps track of: struct mail_private { .. /* open(), stat(), .. */ unsigned long stats_dentry_lookup_count; /* fstat() mostly */ unsigned long stats_attr_lookup_count; /* number of files we've opened and read */ unsigned long stats_files_read_count; /* number of bytes we've had to read from files */ unsigned long long stats_files_read_bytes; /* number of cache lookup hits */ unsigned long stats_cache_hit_count; So it's possible to write a plugin that does whatever with those values. You can get them per-command or even per-single-mail-access. Any thoughts on if those are good variables? Like would it be useful to split dentry lookups to opens and stats?

1 0

[Dovecot] Virtual mailbox plugin, 4 days of struggling
by Brandon Lamb 28 Apr '09

28 Apr '09

Hello, I finally got an INBOX to work, but is virtual mailbox plugin only meant to create a virtual inbox, or should I be able to have an Allmails virtual folder that is viewable in my imap client? if ~/virtual/ is my location, would I create an Allmails directory in the virtual/ or virtual/INBOX/Allmails. Im fairly confused on how this is suppose to work. I was trying to duplicate the gmail-like setup on the wiki but I cant get it work. Per the wiki, i put in the userdb inbox select, but made swapped pop3 for imap zeus:/etc/dovecot# dovecot -n # 1.2.rc3: /etc/dovecot/dovecot.conf # OS: Linux 2.6.26-1-amd64 x86_64 Debian squeeze/sid base_dir: /var/run/dovecot/ log_path: /var/log/dovecot/dovecot.log info_log_path: /var/log/dovecot/info.log log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap pop3 lda listen: 208.200.251.181 ssl: no disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_greeting: Hello there. login_log_format_elements: <%u> <%r> login_log_format: %s login_process_per_connection: no login_process_size: 128 login_processes_count: 4 login_max_processes_count: 20 login_max_connections: 128 mail_max_userip_connections(default): 15 mail_max_userip_connections(imap): 15 mail_max_userip_connections(pop3): 1 verbose_proctitle: yes first_valid_uid: 8 last_valid_uid: 8 first_valid_gid: 8 last_valid_gid: 8 mail_access_groups: mail mail_privileged_group: mail mail_uid: 8 mail_gid: 8 mail_location: maildir:~/:INDEX=dovecot-index mailbox_idle_check_interval: 60 mail_debug: yes fsync_disable: yes mailbox_list_index_disable: no mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota virtual autocreate mail_plugins(imap): quota imap_quota virtual autocreate mail_plugins(pop3): quota mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 mail_log_prefix: %Ls <%u>: imap_client_workarounds(default): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail imap_client_workarounds(pop3): pop3_no_flag_updates(default): no pop3_no_flag_updates(imap): no pop3_no_flag_updates(pop3): yes pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh pop3_logout_format(default): top=%t/%p, retr=%r/%b, del=%d/%m, size=%s pop3_logout_format(imap): top=%t/%p, retr=%r/%b, del=%d/%m, size=%s pop3_logout_format(pop3): retr=%r/%b, del=%d/%m, size=%s namespace: type: private separator: / hidden: yes list: yes subscriptions: yes namespace: type: private separator: / prefix: virtual/ location: virtual:~/virtual:INDEX=~/dovecot-index list: yes subscriptions: yes namespace: type: private separator: / prefix: RealMails/ hidden: yes list: no subscriptions: yes auth default: mechanisms: plain login default_realm: pacwebdev.com cache_ttl: 60 debug: yes worker_max_count: 60 passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/run/dovecot/auth-client mode: 438 user: mail group: mail master: path: /var/run/dovecot/auth-master mode: 438 user: mail group: mail plugin: quota: maildir quota_rule: Trash:ignore quota_rule2: Sent:ignore quota_rule3: Spam:ignore quota_rule4: Archive:ignore quota_rule5: Sent Items:ignore quota_rule6: Deleted Items:ignore quota_warning: storage=95%% /etc/dovecot/quota-warning.sh 95 quota_warning2: storage=80%% /etc/dovecot/quota-warning.sh 80 autocreate: Trash autocreate2: Spam autosubscribe: Trash autosubscribe2: Spam auth_socket_path: /var/run/dovecot/auth-master

2 4

[Dovecot] Error in IMAP command UID: Unknown thread algorithm.
by Ralf Hildebrandt 28 Apr '09

28 Apr '09

Our Squirrelmail offers "Thread based sorting". Now, I have one user, where the activation of thread sorting results in: FEHLER: Falsche oder ungültige Anfrage. Anfrage: THREAD ORDEREDSUBJECT ISO-8859-1 ALL Server antwortete: Error in IMAP command UID: Unknown thread algorithm. Why is that? -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12200 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 Ralf.Hildebrandt(a)charite.de | http://www.charite.de

2 1

[Dovecot] [Fwd: Re: [Pine-info] "incomplete SecBuffer exceeds maximum buffer size" ?]
by Stewart Dean 27 Apr '09

27 Apr '09

Forgive me if I've been asleep at the switch on the SSL problem and it's already been figured out, but....could this be what the prob is? -------- Original Message -------- Subject: Re: [Pine-info] "incomplete SecBuffer exceeds maximum buffer size" ? Date: Mon, 27 Apr 2009 09:47:04 -0700 (PDT) From: Steve Hubert <hubert(a)washington.edu> Organization: Univ of Washington; UW Technology; Seattle To: Pine Forum <pine-info(a)u.washington.edu> References: <Pine.WNT.4.64.0904261823300.-1877079@zuluone> There is a feature called quell-ssl-largeblocks that addresses this. In alpine it is called "Prevent SSL Largeblocks". The help text in alpine says FEATURE: Prevent SSL Largeblocks PC-Alpine only. This feature changes the behavior of fetching messages and attachments so that the message data is fetched in chunks no larger than 12K bytes. This works around a bug in Microsoft's SSL/TLS support. Some versions of Microsoft SSL are not able to read full-sized (16K) SSL/TLS packets. Some servers will send such packets and this will cause PC-Alpine to crash with the error incomplete SecBuffer exceeds maximum buffer size Microsoft is aware of the problem and has developed a hotfix for it, it is discussed in article 300562 in the Microsoft Knowledge Base. _______________________________________________ Pine-info mailing list Pine-info(a)u.washington.edu http://mailman1.u.washington.edu/mailman/listinfo/pine-info -- ==== Once upon a time, the Internet was a friendly, neighbors-helping-neighbors small town, and no one locked their doors. Now it's like an apartment in Bed-Stuy: you need three heavy duty pick-proof locks, one of those braces that goes from the lock to the floor, and bars on the windows.... ==== Stewart Dean, Unix System Admin, Bard College, New York 12504 sdean(a)bard.edu voice: 845-758-7475, fax: 845-758-7035

1 0

[Dovecot] Log File per Domain
by Darvin Denmian 27 Apr '09

27 Apr '09

Hello list, i need to know if is possible to create a log file per domain, like: /home/vmail/%d/maillog i'm thinking use : log_path = /home/vmail/%d/maillog , this will work? Thanks !!

4 4

[Dovecot] Testing HEAD
by Odhiambo ワシントン 27 Apr '09

27 Apr '09

I have successfully compiled HEAD on FreeBSD-7 and I hope I am not doing anything weird. ./configure \ --cache-file=../cache_file \ --prefix=/opt/dovecot2 \ --with-ioloop=kqueue \ --with-notify=kqueue \ --with-sql=yes \ --with-mysql \ --with-zlib \ --with-bzlib \ --with-ssl=openssl \ --with-sql-drivers FreeBSD-7# pwd /opt/dovecot2 FreeBSD-7# ls -al sbin/dovecot* -rwxr-xr-x 1 root wheel 132924 Apr 27 16:59 sbin/dovecot -rwxr-xr-x 1 root wheel 100452 Apr 27 16:59 sbin/dovecotpw FreeBSD-7# ./sbin/dovecot -n dovecot: illegal option -- n Usage: dovecot [-F] [-c <config file>] [-p] [-n] [-a] [-cb <config binary path>] [--version] [--build-options] FreeBSD-7# ./bin/doveconf doveconf: Fatal: Error in configuration file /opt/dovecot2/etc/dovecot.conf line 1048: Unknown setting: user PS: This is the default config it shipped with. Nothing changed so far. -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ "Clothes make the man. Naked people have little or no influence on society." -- Mark Twain

2 1