April 2013 - dovecot - dovecot.org

[Dovecot] IMAP monitoring
by pvsuja 19 Apr '13

19 Apr '13

Dear Sir, I want to get some statistics of dovecot IMAP server like the number of current IMAP connections, who is logged in to the Dovecot server, bandwidth usage. Is there any utility which does this sort of full monitoring? I tried doveadm who to get the details of logged in users. but its not returning any output even though i am logged in to the server. Thanks and regards, Suja -- View this message in context: http://dovecot.2317879.n4.nabble.com/IMAP-monitoring-tp41723.html Sent from the Dovecot mailing list archive at Nabble.com.

1 0

[Dovecot] dovecot index errors since 2.1.12
by Morten Stevens 18 Apr '13

18 Apr '13

Hi, After upgrading to dovecot 2.1.12, I see a lot of these errors: # 2.1.12: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-279.14.1.el6.x86_64 x86_64 CentOS release 6.3 (Final) # Filesystem: ext4 with mdbox storage Dec 10 15:21:04 mail dovecot: imap(user(a)example.org): Error: Cached message size smaller than expected (5010 < 8192) Dec 10 15:21:04 mail dovecot: imap(user(a)example.org): Error: Corrupted index cache file /var/vmail/example.org/user//mdbox/mailboxes/INBOX/Ubuntu/dbox-Mails/dovecot.index.cache: Broken physical size for mail UID 27517 Dec 10 15:21:04 mail dovecot: imap(user(a)example.org): Error: read(/var/vmail/example.org/user//mdbox/storage/m.7123) failed: Input/output error (FETCH for mailbox INBOX/Ubuntu UID 27517) Dec 10 15:21:04 mail dovecot: imap(user(a)example.org): Disconnected: Internal error occurred. Refer to server log for more information. [2012-12-10 15:21:04] in=3391 out=1383967 Dec 17 21:38:34 mail dovecot: imap(user2(a)example.org): Error: Cached message size larger than expected (12222 > 12085) Dec 17 21:38:34 mail dovecot: imap(user2(a)example.org): Error: Corrupted index cache file /var/vmail/example.org/user2//mdbox/mailboxes/LKML/dbox-Mails/dovecot.index.cache: Broken physical size for mail UID 216231 Dec 17 21:38:34 mail dovecot: imap(user2(a)example.org): Error: read(/var/vmail/example.org/user2//mdbox/storage/m.15569) failed: Input/output error (FETCH for mailbox LKML UID 216231) Dec 17 21:38:34 mail dovecot: imap(user2(a)example.org): Disconnected: Internal error occurred. Refer to server log for more information. [2012-12-17 21:38:34] in=4079 out=61996358 Dec 17 21:40:34 mail dovecot: imap(user2(a)example.org): Error: Cached message size larger than expected (6726 > 5302) Dec 17 21:40:34 mail dovecot: imap(user2(a)example.org): Error: Corrupted index cache file /var/vmail/example.org/user2//mdbox/mailboxes/Google/dbox-Mails/dovecot.index.cache: Broken physical size for mail UID 930834 Dec 17 21:40:34 mail dovecot: imap(user2(a)example.org): Error: read(/var/vmail/example.org/user2//mdbox/storage/m.15544) failed: Input/output error (FETCH for mailbox Google UID 930834) Dec 17 21:40:34 mail dovecot: imap(user2(a)example.org): Disconnected: Internal error occurred. Refer to server log for more information. [2012-12-17 21:40:34] in=27666 out=29738162 Since the release of dovecot 2.1.x, I have never seen this error message. After downgrading to 2.1.10 the error is gone. Andy ideas? Best regards, Morten

3 18

[Dovecot] Problem with "convert" Plugin
by Andreas Schnederle-Wagner - Futureweb.at 18 Apr '13

18 Apr '13

Hello, I got a Problem with the "convert" Plugin. Trying to convert from mbox to maildir Format. OS: CentOS release 5.8 (Final) dovecot -version: 1.0.7 (Centos RPM) convert Plugin call: convert_mail = mbox:/opt/pop3/%u:INBOX=/var/spool/mail/%u When converting to maildir - POP3 works fine (except the lost UIDL - so every server-saved message is double downloaded - but did not find any fix for this problem with convert plugin) But the IMAP In-Boxes give me some headache . All Folders are converted correct - and displayed in Mail Client. But all Mails in the IMAP INBOX are "lost" (at least Mail Client won't show them anymore) Newly delivered Mails to the Inbox work - but all older ones are missing. When looking into this Folder: /var/maildata/USER/Maildir/cur/ I can see that newly delivered mails look like this: 1366122898.14776_0.SERVERNAME:2, And the old - converted ones like this: 1366119758.P14442Q12M682874.SERVERNAME:2, Can someone point me in the right direction why the converted Mails are missing? (It worked on other Servers - about 1 year ago - without any problem?!) Thank you Andreas Schnederle-Wagner Futureweb OG Innsbrucker Str. 4 6380 St. Johann schnederle(a)futureweb.at www.futureweb.at www.ortsinfo.at Fon: +43 (0) 5352 65335-0 Fax: +43 (0) 5352 65335-777 Gratis über Skype anrufen | Skype-ID: futureweb

2 1

[Dovecot] qmail-ldap LDA Delivery and sieve
by Ruda Porto Filgueiras 18 Apr '13

18 Apr '13

Hi, I'm using dovecot 2.1.7 on debian Squeeze with ldap integration. Almost everything is working fine and I would link to thank all developers for this amazing piece of software. But after changing my qmail-ldap to do LDA integration get all the benefits from LDA and sieve, some emails return with failure like this: <sar(a)mondialline.com.br>: lda(sar): Fatal: Unknown argument: sar Usage: dovecot-lda [-c <config file>] [-a <address>] [-d <username>] [-p <path>] [-f <envelope sender>] [-m <mailbox>] [-e] [-k] It happens on messanges that could not be delivered and need to be returned to the sender. I'm using the configuration described on wiki to do qmail-ldap integration: http://wiki.dovecot.org/HowTo/qmailldap The relevant delivery command is: | /usr/lib/dovecot/dovecot-lda -a $RECIPIENT -f $SENDER -d $USER I also tried to use this way, as documented here: http://wiki2.dovecot.org/LDA/Qmail | /var/qmail/bin/preline -f /usr/lib/dovecot/dovecot-lda But in that case, some sieve plugins can't detect the mail recipient, like vacation plugin. Finally, the vacation plugin also is not doing email forwarding when I use the first delivery option above. Follow my settings: # LDAP scope = subtree user_attrs = uidNumber=11184,gidNumber=2110 user_filter = (&(objectClass=qmailUser)(uid=%u)(accountStatus=active)) pass_attrs=uid=user,userPassword=password,mailHost=host,=proxy_maybe=y pass_filter = (&(objectClass=qmailUser)(uid=%u)(accountStatus=active)) iterate_attrs = uid=user iterate_filter = (&(objectClass=qmailUser)(accountStatus=active)) # dovecot -n output: # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-xen-amd64 x86_64 Debian 6.0.7 ext4 default_client_limit = 8000 default_process_limit = 2048 disable_plaintext_auth = no hostname = mail.mondialline.com.br lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lda_original_recipient_header = X-Original-To mail_gid = vmail mail_location = maildir:/dados/vmail/%u/Maildir mail_plugins = zlib 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 ihave vacation-seconds 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 = . type = private } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { sieve = /dados/vmail/%u/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +vacation +vacation-seconds sieve_global_dir = /var/lib/dovecot/sieve/global/ sieve_vacation_default_period = 1h sieve_vacation_max_period = 30d sieve_vacation_min_period = 0 } postmaster_address = ti(a)mondialline.com.br protocols = " imap lmtp sieve" service dict { unix_listener dict { group = vmail mode = 0600 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 10 } service imap { process_limit = 2048 } service managesieve-login { inet_listener sieve { port = 4190 } } shutdown_clients = no ssl_cert = </var/qmail/control/cert.pem ssl_key = </var/qmail/control/cert.pem submission_host = mail.mondialline.com.br:25 userdb { args = /etc/dovecot/dovecot-ldap.conf.ext default_fields = uid=vmail gid=vmail home=/dados/vmail/%u driver = ldap } protocol lmtp { auth_socket_path = director-userdb } protocol lda { mail_plugins = zlib sieve } protocol imap { mail_max_userip_connections = 500 mail_plugins = zlib imap_zlib } protocol sieve { mail_max_userip_connections = 100 managesieve_max_line_length = 65536 } Best regards, -- Rudá Porto Filgueiras http://python-blog.blogspot.com http://twitter.com/rudaporto

2 2

[Dovecot] Multiple Logins on same accounts from different stations
by HL 18 Apr '13

18 Apr '13

Hi, all I've recently upgraded to 2.1.16 and found my self in deep .... There are 4 accounts in my setup that need to be accessed simultaneously by 5-6 PCs on a local lan. The thing is if a user A updates, deletes, flags mail messages in the imap folders the changes don't get propagated to the other mail clients. To state this clearly, PC (A) thunderbird has an account SALES, Maildir etc PC (B) thunderbird also has the SALES account. Changes from PC (A) and vice-versa like marks,deletes, or moves mails around will randomly get propagated to PC (B) Sometimes they do sometimes they don't. This never occured with previous version 1.2.xx I am attaching my doveconf -a output .. Please Help, Thanks in advance Harry

2 1

[Dovecot] Pros and cons of having folders under INBOX vs. not
by Rich Wales 18 Apr '13

18 Apr '13

I have some questions about whether I should set up folders under INBOX vs. having them outside the INBOX namespace. I'm setting up a new Dovecot 2.2.0 on an Ubuntu 12.04.2 server. My plan is to move my users (family members) to this new server from an old Cyrus server. Everybody is currently using (and will continue to use) IMAP, and either Thunderbird or SquirrelMail as their e-mail client. I'm using the maildir mailbox format on this new Dovecot server. No one is using the new Dovecot server yet, so I'm still free to do additional tweaking of the server configuration. When I used imapsync to copy everyone's mail to the new server, I found that all the folders (other than INBOX) were renamed. On the old Cyrus server, all the folders are subfolders of INBOX, but the folders on the new Dovecot server are not. (For example, a folder named "INBOX.Dovecot" on the old server was renamed to "Dovecot" on the new server by the imapsync utility.) Can I just keep things this way on the new server? Or are my users going to run into problems if folders are not all under INBOX? I do realize that IMAP servers can be set up either to put everything under INBOX, or not, but I'm not familiar with all the pros/cons. And if I do need (or want) to put all the folders under INBOX, can I simply rename the existing folders in each user's Maildir (and also edit folder names accordingly in everyone's "subscriptions" file)? Or will Dovecot be broken unless I recopy everything from scratch (with a command-line option to imapsync to put everything in the INBOX destination namespace)? Rich Wales richw(a)richw.org

2 1

[Dovecot] auth: passwd file (info): unknown user
by Jim Knuth 18 Apr '13

18 Apr '13

Hello, the problem is: The users are system users (by Confixx) say webxpy. But behind it e-mail puts of course address like info(a)domain.de and so on. Everything functions perfectly, nevertheless, is following in the log. … … dovecot: auth: passwd file (jk): unknown user … dovecot: auth: passwd file (jim.knuth): unknown user … dovecot: auth: passwd file (info): unknown user … and so on It is tried obviously, before the domain part in the passwd file to find user info … However, there is in it only webxpy. How can I solve this dilemma, by which does this come then? auth_username_format = %n Thanks in advance as attached mine dovecot-n -- Mit freundlichen Grüßen, with kind regards, Jim Knuth

1 0

[Dovecot] Dovecot 2.2 & LEMONADE extensions
by Jan Phillip Greimann 18 Apr '13

18 Apr '13

Hi there, I read an article about dovecot 2.2, which includes the LEMONADE extensions, and was fascinated about the feature "Forward without download". We have a small internet-uplink in our office and our CEO loves to receive mails with large attachments, he also reply/forward it, so every time the full attachments get downloaded and uploaded again. Now the question is: Is LEMONADE supported by desktop-mailclients like thunderbird or just mobile Clients? (Google said nothing to this, maybe searched the wrong words) I hope someone can help me with this. Greetings, Jan

6 8

[Dovecot] imap Panic: file index-attachment.c: line 231 (index_attachment_save_finish): assertion failed: (attach->input->eof)
by Pascal Volk 17 Apr '13

17 Apr '13

Hi Timo, some imap processes seems to have some problems. Regards, Pascal

2 8

[Dovecot] Maildirs location migration
by Thomas Hummel 17 Apr '13

17 Apr '13

Hello Timo, I'm using dovecot-2.1.15 with Maildir mailboxes located on an NFS filer. Postfix is used to deliver mail through procmail ("mailbox_command) as LDA. Our team has bought another filer and everything is meant to go on it, so we're planning to migrate those mailboxes to the new filer. To test it only on a subset of users, I ended up to the following solution : 1. keep new messages in postfix mailqueue for those users (via a service and a transport) 2. prevent new dovecot authentication for those users (via the "auth-deny" passwd-file type passdb) 3. doveadm kick those users 4. copy or rsync the mailboxes 5. symlink maildir, control and indexes directories to the new filer (nfs mounted on the mail server) 6. re-enable mail delivery and imap authentication I was wondering if such a migration could be done differently in order to be seamless to the user : - for the postfix part, it would be easy, I guess, to create a new service (and a new transport map using this service) to deliver to the new location - but for the imap part, I'm not sure if it can be done. My guess is that, if feasible, it would involve some namespace settings and a dsync copy but I cannot figure out how exactly. What do you think ? Thanks -- Thomas Hummel | Institut Pasteur <hummel(a)pasteur.fr> | Groupe Exploitation et Infrastructure

2 15