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Problem with Dovecot and BlackBerry
by Luca Bertoncello 05 Apr '17

05 Apr '17

Hi all, i've got a strange behaviour with a BlackBerry Classic Phone (BBOS 10.3.2.2876) in combination with Dovecot 2.2.13 while trying to fetch mails. Before burying myself into debugging sessions, i try to get an understanding if the following is a Client- or a Server-specific error in the behaviour: CIGA8 UID FETCH 10009:10035 (UID FLAGS) (CHANGEDSINCE NOMODSEQ) CIGA8 BAD Error in IMAP command UID FETCH: Invalid CHANGEDSINCE modseq. Following the full conversation. ---- * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5] Dovecot on xxx ready. CIGA1 CAPABILITY * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5 CIGA1 OK Pre-login capabilities listed, post-login capabilities have more. CIGA2 ID ("os" "BlackBerry 10" "os-version" "10.3.2.2876" "vendor" "rim" "device" "Classic" "name" "bbimap") * ID ("name" "Dovecot") CIGA2 OK ID completed. CIGA3 LOGIN xxx xxx * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE BINARY MOVE CIGA3 OK Logged in CIGA4 CAPABILITY * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE BINARY MOVE CIGA4 OK Capability completed. CIGA5 LIST "" "" * LIST (\Noselect) "." "" CIGA5 OK List completed. CIGA6 LIST "" "*" * LIST (\HasNoChildren) "." folder_a * LIST (\HasNoChildren) "." folder_b * LIST (\HasNoChildren) "." folder_c * LIST (\HasNoChildren) "." sent-mail * LIST (\HasNoChildren) "." folder_d * LIST (\HasNoChildren) "." folder_e * LIST (\HasNoChildren \Trash) "." Trash * LIST (\HasNoChildren \Drafts) "." Drafts * LIST (\HasNoChildren) "." folder_f * LIST (\HasNoChildren) "." folder_g * LIST (\HasNoChildren) "." INBOX CIGA6 OK List completed. CIGA7 SELECT INBOX (CONDSTORE) * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 7 EXISTS * 0 RECENT * OK [UIDVALIDITY 1391686038] UIDs valid * OK [UIDNEXT 10036] Predicted next UID * OK [HIGHESTMODSEQ 1608] Highest CIGA7 OK [READ-WRITE] Select completed (0.000 secs). CIGA8 UID FETCH 10009:10035 (UID FLAGS) (CHANGEDSINCE NOMODSEQ) CIGA8 BAD Error in IMAP command UID FETCH: Invalid CHANGEDSINCE modseq. CIGA9 LOGOUT * BYE Logging out CIGA9 OK Logout completed. ---- Thanks in advance! Luca Bertoncello (lucabert(a)lucabert.de)

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Problem with acl and shared mailboxes
by Fabian 04 Apr '17

04 Apr '17

Hi there, we are currently have the following problem: User gustav(a)agreatdomain.de shares his INBOX to brunhilde(a)agreatdomain.com. But brunhilde can't subscribe that mailbox. host:~ # more //var/spool/mail/agreatdomain.com/gustav/Maildir/dovecot-acl owner akxeilprwts user=brunhilde(a)agreatdomain.com lprws host:~ # Doveadm acl debug request: host:~ # doveadm acl debug -u sieglinde(a)agreatdomain.com shared/gustav doveadm(sieglinde(a)agreatdomain.com): Error: Mailbox 'shared.gustav' in namespace 'shared/gustav/' doesn't exist in /var/spool/mail/agreatdomain.com/gustav//Maildir/.shared.gustav host:~ # In the debug logfile I can see the following message: Apr 03 10:29:18 imap(brunhilde(a)agreatdomain.com): Debug: acl: acl username = brunhilde(a)agreatdomain.com Apr 03 10:29:18 imap(brunhilde(a)agreatdomain.com): Debug: acl: owner = 0 Apr 03 10:29:18 imap(brunhilde(a)agreatdomain.com): Debug: acl vfile: Global ACLs disabled Apr 03 10:29:18 imap(brunhilde(a)agreatdomain.com): Debug: acl vfile: file /var/spool/mail/agreatdomain.com/gustav/Maildir/.shared.gustav/dovecot-acl not found Apr 03 10:29:18 imap(brunhilde(a)agreatdomain.com): Debug: acl: No lookup right to mailbox: shared/gustav Why is dovecot searching in .shared/.gustav instead of Maildir/ directly? Any ideas? My configuration: host:~ # doveconf -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.12.67-60.64.24-default x86_64 SUSE Linux Enterprise Server 12 (x86_64) ext3 auth_debug = yes auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes debug_log_path = /var/log/dovecot.debug dict { sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no first_valid_uid = 480 lmtp_save_to_detail_mailbox = yes mail_debug = yes mail_gid = vmail mail_location = maildir:/var/spool/mail/%d/%u/Maildir:LAYOUT=fs mail_plugins = acl quota listescape mail_privileged_group = vmail mail_uid = dovecot 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 namespace { hidden = yes inbox = yes list = no location = prefix = separator = / subscriptions = yes } namespace { list = yes location = maildir:%%h/Maildir:INDEXPVT=~/Maildir/shared/%%u prefix = shared/%%n/ separator = / subscriptions = no type = shared } namespace Public { list = children location = maildir:/var/mail/%d/public:INDEXPVT=~/public:LAYOUT=fs prefix = Public/ separator = / subscriptions = no type = public } namespace inbox { inbox = no 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 = / subscriptions = yes type = private } passdb { args = /etc/dovecot/masteruser.%s driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_anyone = allow acl_shared_dict = file:/var/spool/mail/%d/shared-mailboxes.db quota = dict:User quota::proxy::sqlquota quota2 = dict:Shared quota::proxy::sqlquota quota_rule2 = INBOX/Trash:storage=+100M sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = postmaster(a)d8ox1.int.pro-ite.de protocols = imap pop3 lmtp sieve service auth-worker { user = dovecot } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0666 } } service dict { unix_listener dict { group = vmail mode = 0660 user = dovecot } } 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 = no userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = acl quota listescape acl quota sieve } protocol lda { mail_plugins = acl quota listescape acl sieve } protocol imap { mail_plugins = acl quota listescape imap_quota imap_acl } host:~ # -- Kind regards, Fabian

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Meaning of "protocol !indexer-worker"
by Angel L. Mateo 04 Apr '17

04 Apr '17

Hello, I'm configuring dovecot 2.2.28. Comparing with previous versions I have found now in 10-mail.conf the config: protocol !indexer-worker { # If folder vsize calculation requires opening more than this many mails from # disk (i.e. mail sizes aren't in cache already), return failure and finish # the calculation via indexer process. Disabled by default. This setting must # be 0 for indexer-worker processes. #mail_vsize_bg_after_count = 0 } I can see that indexer-worker is the index service in dovecot. But I don't what the '!' means in front of the service name. Any who can explain it to me? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868889150 Fax: 868888337

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Users home path inside a sieve script
by Mark Constable 04 Apr '17

04 Apr '17

Perhaps I have not looked hard enough but is it possible to get at the current users auth userdb "home" (or $HOME) variable from inside a sieve script? Example?

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Error: Virtual mailbox loops, Dovecot version 2.2.10
by dan＠redchops.com 03 Apr '17

03 Apr '17

I'm trying to follow the guide at https://wiki.dovecot.org/Plugins/Virtual for the 'Conversation' style virtual mailbox, but with a small change. I'd like the virtual mailboxes to be 'top level', which I found while searching through this list is accomplishable by putting the dovecot-virtual file in the root of the namespace location. My issue is this works perfectly fine for the All Mail virtual mailbox, but the Threaded mailbox fails with the error above. I tried creating a RealMail namespace, but that doesn't solve the issue either. I feel like I must be overlooking something simple; I could get this setup working if the virtual mailboxes shared a namespace and were subfolders, but I don't like that setup much (I'm trying to get my companies GMail users on to our own webmail client, it's features like this that I need to replicate with dovecot or they'll never leave their POP3 setups). I've attached the output of dovecot -n, and my virtual mailboxes look like this: # cat Threaded/dovecot-virtual All inthread refs x-mailbox INBOX # cat all/dovecot-virtual RealMail RealMail/* -RealMail/Trash -RealMail/Trash/* -RealMail/Spam -RealMail/Spam/* all I'd appreciate any insight in to this issue. If I try to access the Threaded Inbox through IMAP, I get this error specifically: a select "Threaded Inbox" a NO [SERVERBUG] Virtual mailbox open failed because of mailbox All: Internal error occurred. Refer to server log for more information. [2017-04-03 00:24:28] The relevant line being: Apr 3 00:24:28 mail dovecot: imap(dan(a)redchops.com): Error: Virtual mailbox loops: No information before or after. Thanks, -Dan

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Re: Getting error on port 995
by Joseph Tam 03 Apr '17

03 Apr '17

Bhushan Bhosale writes: > I'm getting issue with port 995 by using Microsoft Outlook 2016 only. > The error on Microsoft Outlook showing "Your server does not support > the connection encryption type. Try changing the encryption method". > The error is only who is using Microsoft outlook2016. Kindly help. Help us help you. Please include output of "dovecot -n" and any relevant log entries. As a wild ass guess, I think maybe the client is using used "STARTTLS" intead of "SSL", or some other SSL requirement disagreement. Joseph Tam <jtam.home(a)gmail.com>

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Mail list empty on my mailserver
by Philippe Forums 03 Apr '17

03 Apr '17

Hello, After changing NAS, I meet a problem when I go on my e-mail box with my webmail. Either e-mails do not appear anymore, or they appear but are "empty". When I look in the directory of the e-mails of my mailserver, these e-mails are present. I tried to rename files "dovecot.index*" and to restart dovecot but nothing can be done. To make the seesaw of a NAS towards an other one, I copied all the directory of mailserver to an external storage, and made the copy the other way on my new NAS. This directory is a mount to a NAS. Having well to look, it would seem whether it is a date problem, because the copy did not keep the real dates of e-mails and they thus find themselves dated the day of the copy. I know not at all how to get back all my e-mails in my webmail. Thank's for your help. PS : I'm french, sorry for my english. -- ##################### Philippe - Forums

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Getting error on port 995
by Bhushan Bhosale 02 Apr '17

02 Apr '17

Dear Team, I'm getting issue with port 995 by using Microsoft Outlook 2016 only. The error on Microsoft Outlook showing "Your server does not support the connection encryption type. Try changing the encryption method". The error is only who is using Microsoft outlook2016. Kindly help. Thanks and Regards, Bhushan Bhosale

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dsync replication
by George Dimakopoulos 31 Mar '17

31 Mar '17

Is it stable for dovecot 2.2.27 to implement DRBD (or HAST) on block level for maildir data replication instead of using dsync plugin? Regards, George

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Slow performance with large folders over the Internet
by Shawn Heisey 31 Mar '17

31 Mar '17

Dovecot package version is 1:1.2.15-7+deb6u1. It is in Debian 6.0.10, using the Debian package. The server is in my basement at home, and is exposed to the Internet so I can fully access my mail from anywhere. I use IMAP for reading mail. I have a number of folders in my mailbox that have thousands of messages in them, from mailing lists. When I'm at home, I have a LAN connection to the server. It goes through a Cisco firewall that limits the connection speed to 100Mb/s. In this situation, I can open a folder with 25000 messages in it, click on the next unread message that Thunderbird did not know about before, and within a second or two, the message will download, allowing me to view it and reply. When I'm at work, with highly variable network latency between Thunderbird and the server, doing exactly the same thing takes a LOT longer. I have seen it take as long as 15 minutes for a single message. If I open a folder with only a few messages in it, it is fast. The server is not overloaded -- I can log into it with ssh and use "mutt -f" to open a folder directly. Loading thousands of messages into mutt takes a while, but I have no difficulty using the ssh connection and running commandline programs. This suggests that the IMAP communication between the server and the client involves a large amount of back and forth communication when the message count in the folder is high, possibly something for every message in the folder. It happens quickly on a LAN but crawls on a connection with high latency. I can understand it taking a few seconds longer on a high-latency link, but it takes minutes. I do plan on building a new server and migrating to Dovecot 2.x, but I haven't had the time to work on that. Is this a known problem? If so, is it fixed in 2.x? Thanks, Shawn

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