- dovecot - dovecot.org

Re: First steps in Dovecot; IMAP not working
by Joseph Tam 18 Oct '16

18 Oct '16

Marnaud <anic297(a)mac.com> writes: > "mailtest", the new user, is in group mail(8). In addition, I've added > write permission for "others" to /var/mail. Now, I'm trying to send a > message to "mailtest" from another, working, e-mail account and nothing > happens. This time, "doveadm log errors" is empty. > > In short, I don't get any error but no mail either. Two things to check: # What does dovecot think user "mailtest" has? doveadm user mailtest # The sticky bit should be set on /var/mail (you didn't mention # setting it. It probably doesn't have bearing on this problem, # but it will make it a little more secure. chmod 1777 /var/mail > Since "doveadm log errors" returns an empty result, where should I look > for the problem? I usually don't use this command, I look at the log file which seems to have more details. Try looking there for more diagnostics. Also, look at your MTA's logs as well. Joseph Tam <jtam.home(a)gmail.com>

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Warning: Sent SIGKILL to 100 imap-login processes
by Ximo Mira 18 Oct '16

18 Oct '16

Hi, Last night we tried a traffic bypass in an existing mail environment before migration to new Dovecot backend platfom using Dovecot proxy. We are using an LDAP value for checking the proxy host of the user. POP traffic was running flawlessly, but IMAP connections started to drop when few clients connected: Oct 17 22 :26:51 master: Warning: Sent SIGKILL to 100 imap-login processes There are hundreds of these lines, always between 99 and 100 processes. Looks like some kind of limit, but not sure if its related to the Dovecot proxy machines (pool of 3 in total) or the final destination (the same IMAP server for +10000 users). Concurrect IMAP connections may rise to around 2000. Thanks.

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dovecot 2.2.25 BUG: local_name is not matching correctly
by Arkadiusz Miśkiewicz 18 Oct '16

18 Oct '16

Bug report: When using dovecot 2.2.25 SNI capability it doesn't always match proper vhost config. For example if we have such config: local_name imap.example.com { ssl_cert = </etc/certs/cert.imap.example.com.pem ssl_key = </etc/certs/cert.imap.example.com.pem } but imap client sends mixedcase SNI hostname like "IMAP.example.com" then dovecot won't match above local_name imap.example.coml config section. IMO dovecot should do case insensitive comparison. Case sensitive matching for DNS names makes little sense. -- Arkadiusz Miśkiewicz, arekm / ( maven.pl | pld-linux.org )

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Massive LMTP Problems with dovecot
by Ralf Hildebrandt 17 Oct '16

17 Oct '16

Currently I'm having massive problems with LMTP delivery into dovcot. dovecot/lmtp processes are piling up, eas using considerable amounts of CPU: # ps auxwww|fgrep dove root 20537 0.0 0.0 18124 1196 ? Ss 15:18 0:00 /usr/sbin/dovecot -c /etc/dovecot/dovecot.conf dovecot 20541 0.0 0.0 9620 1084 ? S 15:18 0:00 dovecot/anvil root 20542 0.0 0.0 9752 1264 ? S 15:18 0:00 dovecot/log root 20544 0.0 0.0 21168 2276 ? S 15:18 0:00 dovecot/config copymail 20580 72.8 0.0 39556 7036 ? R 15:18 2:00 dovecot/lmtp dovecot 20582 0.0 0.0 18568 1756 ? S 15:18 0:00 dovecot/auth copymail 20597 77.2 0.0 35688 5136 ? R 15:18 2:06 dovecot/lmtp copymail 20598 39.3 0.0 38060 5596 ? R 15:18 1:04 dovecot/lmtp copymail 20613 62.3 0.0 38036 5600 ? R 15:18 1:41 dovecot/lmtp copymail 20619 56.4 0.0 37732 7448 ? R 15:18 1:31 dovecot/lmtp copymail 20620 75.9 0.0 35872 5336 ? R 15:18 2:03 dovecot/lmtp copymail 20627 37.8 0.0 36480 5892 ? R 15:18 1:01 dovecot/lmtp copymail 20838 60.5 0.0 35640 5036 ? R 15:19 0:59 dovecot/lmtp copymail 20840 66.3 0.0 35920 5296 ? R 15:19 1:04 dovecot/lmtp copymail 20841 66.0 0.0 37456 6852 ? R 15:19 1:04 dovecot/lmtp copymail 20842 64.5 0.0 36424 5808 ? R 15:19 1:02 dovecot/lmtp copymail 20843 67.6 0.0 39612 7064 ? R 15:19 1:05 dovecot/lmtp doveadm stop won't stop these, I have to use kill -9 on them. I already tried disabling fts (entirely), still things won't speed up. I can't strace: # strace -p 20841 Process 20841 attached (and that's it) # dpkg -l|grep dovecot ii dovecot-core 2:2.2.25-1~auto+57 amd64 secure POP3/IMAP server - core files ii dovecot-imapd 2:2.2.25-1~auto+57 amd64 secure POP3/IMAP server - IMAP daemon ii dovecot-lmtpd 2:2.2.25-1~auto+57 amd64 secure POP3/IMAP server - LMTP server ii dovecot-lucene 2:2.2.25-1~auto+57 amd64 secure POP3/IMAP server - Lucene support ii dovecot-sieve 2:2.2.25-1~auto+57 amd64 secure POP3/IMAP server - Sieve filters support I also tried deleting the mdboxes, that also didn't change anything. Ideas? -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | http://www.charite.de

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Re: First steps in Dovecot; IMAP not working
by Marnaud 17 Oct '16

17 Oct '16

Sorry, my previous message got mangled. I'm re-writing it, quoting manually. I apologize for the traffic. >(Sorry I read this list in digest form so frequently I'm half a step behind.) No problem. >No, it's quite explicit. User "webuser" has uid/gid = 1001(webuser)/1000(ftpusers). Your mail spool has permission uid/gid = root(0)/mail(8), neither of which allows webuser to write to this mail spool to creates its own mail folder. You're right (I don't have enough Unix habits, it seems...). I couldn't change this user (it must be in the ftpusers group for other purposes), so I tried adding another user for testing mail. "mailtest", the new user, is in group mail(8). In addition, I've added write permission for "others" to /var/mail. Now, I'm trying to send a message to "mailtest" from another, working, e-mail account and nothing happens. This time, "doveadm log errors" is empty. In short, I don't get any error but no mail either. >Aki Tuomi <aki.tuomi(a)dovecot.fi> replies with several solutions: >>In your configuration, dovecot uses whatever user/group returned by PAM. Since the webuser has never logged in, it has no directory under /var/mail. If you want, you can >>a) override mail_uid and mail_gid in userdb/passdb >>b) pre-create /var/mail/webuser and chown it to webuser:ftpusers >>c) you can let ftpusers write to /var/mail. Ok, I thought I had to do all of them (and didn't understand step a)). So I've done step c) by allowing everyone write access. >Or if you dynamically/frequently onboard mail accounts, and users cannot arbitrarily write into this directory, you can "chmod 1777 /var/mail/" and let dovecot auto-create it (might also want to set "lda_mailbox_autocreate = yes". I've done it right now; same problem. Since "doveadm log errors" returns an empty result, where should I look for the problem? Thank you.

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Re: First steps in Dovecot; IMAP not working
by Joseph Tam 17 Oct '16

17 Oct '16

(Sorry I read this list in digest form so frequently I'm half a step behind.) > For sake of ?security?, I chose to not allow plaintext communication > (being new to this, I think being strict is a good choice). I?ve tried > with the openssl option and it successfully logged in. Yes, you've included some more log entries, which makes the problem clearer, as it usually does. > Oct 13 05:56:28 imap(webuser): Error: open(/var/mail/webuser) failed: > Permission denied (euid=1001(webuser) egid=1000(ftpusers) missing +w perm: > /var/mail, we're not in group 8(mail), dir owned by 0:8 mode=0775) > ... > I checked, using ls -l /var, and I get this: > drwxrwsr-x 2 root mail 4096 Apr 27 11:27 mail > so the group looks to be correctly set to 'mail', despite what the log says, > right? No, it's quite explicit. User "webuser" has uid/gid = 1001(webuser)/1000(ftpusers). Your mail spool has permission uid/gid = root(0)/mail(8), neither of which allows webuser to write to this mail spool to creates its own mail folder. Aki Tuomi <aki.tuomi(a)dovecot.fi> replies with several solutions: > In your configuration, dovecot uses whatever user/group returned by > PAM. Since the webuser has never logged in, it has no directory under > /var/mail. If you want, you can > > a) override mail_uid and mail_gid in userdb/passdb > b) pre-create /var/mail/webuser and chown it to webuser:ftpusers > c) you can let ftpusers write to /var/mail. Or if you dynamically/frequently onboard mail accounts, and users cannot arbitrarily write into this directory, you can "chmod 1777 /var/mail/" and let dovecot auto-create it (might also want to set "lda_mailbox_autocreate = yes". Joseph Tam <jtam.home(a)gmail.com>

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Re: First steps in Dovecot; IMAP not working
by Aki Tuomi 17 Oct '16

17 Oct '16

On 13.10.2016 12:42, Marnaud wrote: > > "Aki Tuomi" <aki.tuomi(a)dovecot.fi> wrote: > >> doveconf -n shows what's there. if you have ssl=no somewhere else in the >> config after you set it to required, it gets overwritten. >> >> Aki > > Thanks, Aki. > It means I have to open each conf file (e.g. using nano) and search > for ssl=no; I'm right or there's a specific file to check? I see you replied to me only, please keep your replies on-list. Try grep -r ssl.*no /etc/dovecot Aki

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Latest HG Changes (fac92b5) affect Sieve-Plugin/LMTP
by Thomas Leuxner 15 Oct '16

15 Oct '16

# 2.2.devel (c73322f): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.devel (fac92b5) # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.6 ==> /var/log/dovecot/dovecot.log <== Oct 15 09:50:15 nihlus dovecot: lmtp(11447): Connect from local Oct 15 09:50:15 nihlus dovecot: lmtp(tlx(a)leuxner.net): Panic: file lda-sieve-plugin.c: line 447 (lda_sieve_execute_scripts): assertion failed: (script != NULL) Oct 15 09:50:15 nihlus dovecot: lmtp(tlx(a)leuxner.net): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x938ae) [0x7fd161fc18ae] -> /usr/lib/dovecot/libdovecot.so.0(+0x9399c) [0x7fd161fc199c] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fd161f5b6de] -> /usr/lib/dovecot/modules/lib90_sieve_plugin.so(+0x3af8) [0x7fd15fdf8af8] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver+0x49) [0x7fd16258bb39] -> dovecot/lmtp [DATA tlx(a)leuxner.net](+0x724e) [0x7fd1629bc24e] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7fd161fd5e4c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10a) [0x7fd161fd730a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7fd161fd5ed5] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fd161fd6078] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fd161f61be3] -> dovecot/lmtp [DATA tlx(a)leuxner.net](main+0x1a2) [0x7fd1629ba382] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd161ba4b45] -> dovecot/lmtp [DATA tlx(a)leuxner.net](+0x5430) [0x7fd1629ba430] Oct 15 09:50:15 nihlus dovecot: lmtp(tlx(a)leuxner.net): Fatal: master: service(lmtp): child 11447 killed with signal 6 (core not dumped)

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Re: First steps in Dovecot; IMAP not working
by Joseph Tam 14 Oct '16

14 Oct '16

Moi <anic297(a)mac.com> wrote: > I've made some more tests and I still can't receive mails; sending them > still works. I don't receive any error message, just the mails that are > supposed to be received won't come. > In the mail logs, I find only this relevant line: > dovecot: imap-login: Aborted login (no auth attempts in 2 secs): user=<> Did you post doveconf -n (I didn't catch the head of this thread)? That would be step 0. A good first step is to test whether you have basic authentication working (to separate out if you have a server or client issue). I assume you allow plaintext communication, but if not, substitute telnet with "openssl sclient -connect your-server:993": C: # telnet your-server 143 S: * OK [CAPABILITY ... C: x1 login testuser theirpassword If you get an OK response to this, it may be a client issue (check settings on client). If you get an error or failure, look inward: check logs and config. Joseph Tam <jtam.home(a)gmail.com>

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Maildir Expunged GUID mismatch for UID
by Steven Xu 14 Oct '16

14 Oct '16

Dovecot version:2.2.25 Since we used to keep our email files on widows server, I made the following changes in maildir-storage.h #define MAILDIR_EXTRA_SEP ',' #define MAILDIR_INFO_SEP_S ":" to "+". Everything seems working except EXPUNG, The dovecot log is flooded by messages like following: imap(xxxxx): Error: Mailbox INBOX: Expunged GUID mismatch for UID 7039 Then I read the source code, and found the following lines in maildir-sync-index.c T_BEGIN { guid = maildir_uidlist_lookup_ext(ctx->mbox->uidlist, uid, MAILDIR_UIDLIST_REC_EXT_GUID); if (guid == NULL) guid = t_strcut(filename, ':'); mail_generate_guid_128_hash(guid, guid_128); } T_END; I have to change the code to guid = t_strcut(filename, '+'); So, should MAILDIR_EXTRA_SEP be used here instead of ':'? Thanks, Steven

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update dovecot-acl in all subfolders in a public folder
by Lukas Henrich 14 Oct '16

14 Oct '16

Hello everyone, right now I have problem and can't find a proper solution. But first: dovecot-version: 2.2.13 Now to my problem: A client of mine uses a public folder called "groups". In this Folder are several subfolders like "Archive", "projects", "sales" und so on. Unfortunately this client (and his employees) created thousands of subfolders within these folders. The folder "groups" is stored in /data/vmail/domain.com/. So, if i type "tree -a -L 1 /data/vmail/domain.com/groups" I get the following outpout: /data/vmail/domain.com/groups/ ??? .Archive ??? .Archive.subfolder1 ??? .Archive.subfolder2 ??? .Archive.subfolder2.subfolder3 ??? .Archive.subfolder2.subfolder4 (....) ??? .projects ??? .projects.subfolder1 ??? .projects.subfolder2 ??? .projects.subfolder2.subfolder3 ??? .projects.subfolder2.subfolder4 (...) In this groups-folder are at the moment more than 3400 folders! Now to the permissions: When the folders "Archive", "projects" and so on had been created every folder got a dovecot-acl for the permission for each user, e.g.: user=user1 kxeilprwts user=user2 kxeilprwts This worked finde, as the dovecot-acl got copied from the parent folder when the employees created new subfolders. Now to my problem I'm facing right now: This client got 2 new employees. So how can I edit all these dovecot-acl files in all subfolders where these 2 new employess schould get access to? Thank you in advance! Yours sincerely, Lukas Henrich Furthermore here is the output of dovecot -n: # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 4.4.6-1-pve x86_64 Debian 8.4 auth_username_format = %Ln disable_plaintext_auth = no lda_mailbox_autocreate = yes mail_home = /data/vmail/domain.com/%Ln mail_location = maildir:~ mail_plugins = " acl" 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 = no ignore_on_failure = no inbox = no list = children location = maildir:/data/vmail/domain.com/%%n:INDEXPVT=/data/vmail/domain.com/%n/share… prefix = shared/%%n/ separator = / subscriptions = yes type = shared } namespace { hidden = no ignore_on_failure = no inbox = no list = yes location = maildir:/data/vmail/domain.com/groups:INDEXPVT=/data/vmail/domain.com/%n/gr… prefix = groups/ separator = / subscriptions = yes type = public } namespace inbox { inbox = yes location = mailbox Archiv { special_use = \Archive } mailbox Archive { auto = subscribe special_use = \Archive } mailbox Archives { special_use = \Archive } mailbox "Deleted Messages" { special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Entwürfe { special_use = \Drafts } mailbox "Gelöschte Elemente" { special_use = \Trash } mailbox "Gelöschte Objekte" { special_use = \Trash } mailbox Gesendet { special_use = \Sent } mailbox "Gesendete Elemente" { special_use = \Sent } mailbox "Gesendete Objekte" { special_use = \Sent } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Papierkorb { special_use = \Trash } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = INBOX/ separator = / subscriptions = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } passdb { args = scheme=CRYPT username_format=%Ln /etc/dovecot/users driver = passwd-file } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db sieve = ~/dovecot.sieve sieve_dir = ~/sieve } postmaster_address = admin(a)domain.com protocols = " imap lmtp sieve sieve" service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } unix_listener auth-userdb { group = vmail user = vmail } } service imap-login { inet_listener imap { port = 143 } } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 24 } unix_listener /var/spool/postfix/private/lmtp-dovecot { group = postfix user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } } ssl_cert = </etc/ssl/certs/kmux-dovecot.intern.domain.com.crt ssl_key = </etc/ssl/private/kmux-dovecot.intern.domain.com.key userdb { args = /etc/dovecot/dovecot-ldap.conf.ext default_fields = uid=vmail gid=vmail home=/data/vmail/domain.com/%n driver = ldap } userdb { args = username_format=%Ln /etc/dovecot/users driver = passwd-file } protocol lmtp { mail_plugins = " acl sieve" } protocol lda { mail_plugins = " acl sieve" } protocol imap { mail_plugins = " acl imap_acl" }

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fix SIS attachment errors
by Webert de Souza Lima 13 Oct '16

13 Oct '16

Hi, I've sent some e-mails about this before but since there was no answers I'll write it differently, with different information. I'm using SIS (Single Instance Attachment Storage). For any reason that is not relevant now, many attachments are missing and the messages can't be fetched: Error: read(attachments-connector(zlib(/dovecot/mdbox/bar.example/foo/storage/m.1))) failed: read(/dovecot/attach/bar.example/23/ae/23aed008c1f32f048afd38d9aae68c5aeae2d17a9170e28c60c75a02ec199ef4e7079cd92988ad857bd6e12cd24cdd7619bd29f26edeec842a6911bb14a86944-fb0b6a214dfa63573c1f00009331bd36[base64:19 b/l]) failed: open(/dovecot/attach/bar.example/23/ae/23aed008c1f32f048afd38d9aae68c5aeae2d17a9170e28c60c75a02ec199ef4e7079cd92988ad857bd6e12cd24cdd7619bd29f26edeec842a6911bb14a86944-fb0b6a214dfa63573c1f00009331bd36) failed: No such file or directory in this specific case, the /dovecot/attach/bar.example/23/ae/ director doesn't exist. In other cases, just one file is missing so I would assume the hardlink could be recreated and it would work. If I create the missing file (with touch or whatever), I get the following errors: Error: read(/dovecot/attach/bar.example/23/ae/23aed008c1f32f048afd38d9aae68c5aeae2d17a9170e28c60c75a02ec199ef4e7079cd92988ad857bd6e12cd24cdd7619bd29f26edeec842a6911bb14a86944-fb0b6a214dfa63573c1f00009331bd36[base64:19 b/l]) failed: Stream is smaller than expected (0 < 483065) Error: read(attachments-connector(zlib(/dovecot/mdbox/bar.example/foo/storage/m.1))) failed: read(/dovecot/attach/bar.example/23/ae/23aed008c1f32f048afd38d9aae68c5aeae2d17a9170e28c60c75a02ec199ef4e7079cd92988ad857bd6e12cd24cdd7619bd29f26edeec842a6911bb14a86944-fb0b6a214dfa63573c1f00009331bd36[base64:19 b/l]) failed: Stream is smaller than expected (0 < 483065) Error: fetch(body) failed for box=INBOX uid=15: BUG: Unknown internal error If I try to fill the file with the amount of bytes it complains about with the following command: $ dd if=/dev/zero of=/dovecot/attach/bar.example/23/ae/23aed008c1f32f048afd38d9aae68c5aeae2d17a9170e28c60c75a02ec199ef4e7079cd92988ad857bd6e12cd24cdd7619bd29f26edeec842a6911bb14a86944-fb0b6a214dfa63573c1f00009331bd36 bs=1 count=483065 then I get the following error: Error: read(/dovecot/attach/bar.example/23/ae/23aed008c1f32f048afd38d9aae68c5aeae2d17a9170e28c60c75a02ec199ef4e7079cd92988ad857bd6e12cd24cdd7619bd29f26edeec842a6911bb14a86944-fb0b6a214dfa63573c1f00009331bd36[base64:19 b/l]) failed: Stream is larger than expected (483928 > 483065, eof=0) Error: read(attachments-connector(zlib(/srv/dovecot/mdbox/bar.example/foo/storage/m.1))) failed: read(//dovecot/attach/bar.example/23/ae/23aed008c1f32f048afd38d9aae68c5aeae2d17a9170e28c60c75a02ec199ef4e7079cd92988ad857bd6e12cd24cdd7619bd29f26edeec842a6911bb14a86944-fb0b6a214dfa63573c1f00009331bd36[base64:19 b/l]) failed: Stream is larger than expected (483928 > 483065, eof=0) Error: fetch(body) failed for box=INBOX uid=15: BUG: Unknown internal error Based on this I have a few questions: 1. Is there a way, or a tool to scan all mailboxes to get all the messages that have compromised attachments? 2. is there a way to "fix" the missing files (even if creating fake files or removing the attachments information from the messages) 3. What I need is to migrate these boxes using doveadm backup/sync, which fails when these errors occur. Is is possible to ignore them or is there another tool that would do it? Thank you. Webert Lima Belo Horizonte, Brasil

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First steps in Dovecot; IMAP not working
by Marnaud 13 Oct '16

13 Oct '16

Hello, I'm new in Dovecot and am having troubles making it working. I'm trying using Outlook and Apple's Mail as the mail clients. Outlook says it can't establish a secured connection to the server (for the IMAP protocol). I'm guessing sending e-mails works but I can't check. This is my current configuration (using dovecot -n): # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-042stab116.1 x86_64 Debian 8.6 mail_location = mbox:~/mail:INBOX=/var/mail/%u 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 = } passdb { driver = pam } passdb { driver = pam } protocols = " imap" service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service imap-login { inet_listener imaps { port = 993 ssl = yes } } ssl = no ssl_cert = </etc/ssl/certs/mail.crt ssl_key = </etc/ssl/private/mail.key userdb { driver = passwd } userdb { driver = passwd } I find abnormal I'm seeing "ssl = no" in this configuration despite the fact that I have "ssl = required" in the /etc/dovecot/conf.d/10-ssl.conf file, but I'm new to this... I have looked around the web; finally, I'm asking here, hoping it's the correct place to ask. Arnaud

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SSL error
by arnaud gaboury 13 Oct '16

13 Oct '16

I run dovecot + postfix as my email server. Everything is working as expected, but I see an error in the dovecot logs: lmtp(7331): Error: SSL context initialization failed, disabling SSL: ENGINE_init(dynamic) failed Dovecot is running and emails are OK. I wonder why this error and how I can fix it? I see it is a SSL issue but no idea in which direction to look. Thank you for help

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Strange subscriptions added by dsync backup
by Rik Theys 13 Oct '16

13 Oct '16

Hi, We're in the process of migrating our dovecot 1.x mail server to a Dovecot 2.2.25 server. During the migration I'm moving from mbox storage to mdbox. I use the following method to do a one-way sync from our current mail server to our new mail server (command executed on the new server): doveadm -v -o imapc_host=oldserver \ -o imapc_user=$u \ -o imapc_master_user=$masteruser \ -o imapc_password="$masterpass" \ -o imapc_port=993 -o imapc_ssl=imaps \ -o ssl_client_ca_file=/etc/pki/tls/certs/ca-bundle.crt \ -o imapc_ssl_verify=yes \ -o mail_fsync=never \ -o mail_prefetch_count=20 \ backup -R -u $u imapc: $u is replaced by the username I'm migrating. The dsync command runs and exits with code 0 (all OK). However, when I look at the subscriptions file on the new server, there seem to be additional subscriptions that are not in the subscriptions file on the old server: 7b0d681945d0fc5711560000ffff90ca 7c0d681945d0fc5711560000ffff90ca 7d0d681945d0fc5711560000ffff90ca 7e0d681945d0fc5711560000ffff90ca 7f0d681945d0fc5711560000ffff90ca 800d681945d0fc5711560000ffff90ca Where do these come from? Is something wrong with the migration? It also seems that subscriptions for IMAP folders that only contain subfolders[1] are no longer present in the new subscriptions file: # diff -u sub-old.sorted sub-new.sorted --- sub-old.sorted 2016-10-11 13:42:44.175070610 +0200 +++ sub-new.sorted 2016-10-11 13:47:53.973888462 +0200 @@ -1,26 +1,26 @@ -Archive/Administration/ +7b0d681945d0fc5711560000ffff90ca +7c0d681945d0fc5711560000ffff90ca +7d0d681945d0fc5711560000ffff90ca +7e0d681945d0fc5711560000ffff90ca +7f0d681945d0fc5711560000ffff90ca +800d681945d0fc5711560000ffff90ca Archive/Administration/Conferences Archive/Announcements -Archive/Education/ Archive/Education/E02N3A Archive/Education/I0D51A Archive/Politics -Archive/Research/ -Archive/Research/FET/ Archive/Research/FET/VPH - Virtual Physiological Human Archive/Research/Grants/ICON IBBT Call 2011 Archive/Research/Grants/Marie Curie ITN 2011 Archive/Research/Grants/Odysseus Archive/Research/Grants/SymBioSysII/Funding Archive/Research/Grants/SymBioSysII/JobApplications -Archive/Research/Manuscripts/ Archive/Research/Manuscripts/ruby-ensembl-api Archive/Research/Projects/GUNZ Archive/Research/Projects/MIQAS Archive/Research/Projects/MODY Archive/Research/Projects/ruby-ensembl-api Archives -Archive/Service/ Archive/Service/EditorORC Archive/Service/Reviewing Deleted Messages Is this expected behaviour? Regards, Rik [1] On the old server a folder can only contain either messages or subfolders, not both at the same time. -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 ---------------------------------------------------------------- <<Any errors in spelling, tact or fact are transmission errors>>

1 0

Auto-archiving
by ＠lbutlr 13 Oct '16

13 Oct '16

I’d like to know if there is a way to tell dovecot to 1) move messages older than # days to the Archive folder 2) rebuild the indexes 3) remove any folders that are left with no mail Preferably, I’d like this to be a action I an schedule via crontab or something to fire off for any users that want it. So, I do not want it to do this across all users and mailboxes.

3 5

Disappearing message when move to Inbox subfolder
by Simon 13 Oct '16

13 Oct '16

We are using dovecot 2.0.9 on Centos 6.5 and having the following issues for one single user/single mailbox. When an Outlook (2016) user creates a folder under their Inbox, it does not create in their mailbox (checking with webmail the folder is not there). If they drag a message to that folder in Outlook, then it disappears. Ive searched their mailbox using doveadm and its simply gone. Ive tested with webmail doing essentially the same thing and it works with no issues. Any ideas here would be most well received :) Thanks in advance, Simon

1 0

dsync replication quota2 issue
by George Kontostanos 12 Oct '16

12 Oct '16

Hello list, We are testing a configuration with 2 mail servers using dsync replication (dovecot 2.2.25 ). Everything works fine except the quota2 which is calculated wrong only on one server. Quota2 resides on different databases since each server needs to update it. The problem: The local server always updates quota2 twice on each message it receives. This happens only on one server. Updates run fine on the second. SQL Debug: Query UPDATE quota2 SET bytes=bytes+2108,messages=messages+1 WHERE username = 'user(a)domain.org' Query UPDATE quota2 SET bytes=bytes+2108,messages=messages+1 WHERE username = 'user(a)domain.org' The result on the server that runs fine mysql> select * from quota2; +----------------------------+---------+----------+ | username | bytes | messages | +----------------------------+---------+----------+ | | user(a)domain.org | 2917126 | 17 | The result on the server that has the problem: mysql> select * from quota2; +----------------------------+---------+----------+ | username | bytes | messages | +----------------------------+---------+----------+ | | user(a)domain.org | 2920317 | 19 | dovecot -n is the same on both: root@mx2:/var/log # dovecot -n # 2.2.25 (7be1766): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.15 (97b3da0) # OS: FreeBSD 10.3-RELEASE amd64 ufs auth_mechanisms = plain login auth_verbose = yes default_client_limit = 2560 default_process_limit = 512 dict { acl = mysql:/usr/local/etc/dovecot/dovecot-dict-shares-sql.conf.ext quota = mysql:/usr/local/etc/dovecot/dovecot-dict-quota-sql.conf.ext } doveadm_password = # hidden, use -P to show it doveadm_port = 12345 log_path = /var/log/dovecot.log mail_debug = yes mail_home = /usr/local/vhosts/mail/%d/%n mail_location = maildir:/usr/local/vhosts/mail/%d/%n:LAYOUT=fs mail_max_userip_connections = 70 mail_plugins = quota acl notify replication mail_privileged_group = vmail mail_shared_explicit_inbox = 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 mbox_write_locks = fcntl namespace { inbox = no list = children location = maildir:/usr/local/vhosts/mail/%%d/%%n:LAYOUT=fs:INDEX=/usr/local/vhosts/indexes/%d/%n/shared/%%u:INDEXPVT=/usr/local/vhosts/indexes/%d/%n/shared/%%u prefix = shared/%%d/%%n/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes list = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / type = private } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl mail_replica = tcp:beta.sophimail.com:12345 quota = dict:User quota::proxy::quota quota_rule2 = Trash:storage=+100M sieve = /usr/local/vhosts/mail/%d/%n/.dovecot.sieve sieve_before = /usr/local/vhosts/sieve/before.d/ sieve_dir = /usr/local/vhosts/mail/%d/%n sieve_global_dir = /usr/local/vhosts/sieve/%d sieve_global_path = /usr/local/vhosts/sieve/%d/default.sieve } protocols = imap lmtp sieve sieve service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = vmail } unix_listener replication-notify { mode = 0666 user = vmail } } service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } service config { unix_listener config { user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } service doveadm { inet_listener { port = 12345 } user = vmail } service imap-login { inet_listener imap { port = 143 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 vsz_limit = 64 M } service replicator { unix_listener replicator-doveadm { mode = 0666 } } ssl_cert = </usr/local/etc/postfix/keys/domain.com.crt ssl_key = </usr/local/etc/postfix/keys/domain.com.key userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = quota acl notify replication sieve notify replication } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep mail_plugins = quota acl notify replication imap_quota imap_acl notify replication } protocol lda { mail_plugins = quota acl notify replication sieve acl postmaster_address = root } local 192.168.3.6 { protocol imap { ssl_cert = </usr/local/etc/postfix/keys/domain.com.crt ssl_key = </usr/local/etc/postfix/keys/domain.com.key } } dovecot-dict-quota-sql.conf.ext: connect = host=127.0.0.1 dbname=quota user=mailadmin password=********** map { pattern = priv/quota/storage table = quota2 username_field = username value_field = bytes } map { pattern = priv/quota/messages table = quota2 username_field = username value_field = messages } Sorry for the lengthy email, any help is very much appreciated. -- George Kontostanos ---

1 1

Detect IMAP server domain name in Dovecot IMAP proxy
by KT Walrus 12 Oct '16

12 Oct '16

I’m in the process of setting up a Dovecot IMAP proxy to handle a number of IMAP server domains. At the current time, I have my users divided into 70 different groups of users (call them G1 to G70). I want each group to configure their email client to access their mailboxes at a domain name based on the group they belong to (e.g., g1.example.com <http://g1.example.com/>, g2.example.com <http://g2.example.com/>, …, g70.example.com <http://g70.example.com/>). I will only support TLS encrypted IMAP connections to the Dovecot IMAP proxy (‘ssl=yes’ in the inet_listener). My SSL cert has alternate names for all 70 group domain names. I want the group domain to only support users that have been assigned to the group the domain name represents. That is, a user assigned to G23 would only be allowed to configure their email client for the IMAP server named g23.example.com <http://g23.example.com/>. My solution during testing has been to have the Dovecot IMAP proxy to listen on different ports: 9930-9999. I plan to purchase 70 IPs, one for each group, and redirect traffic on port 993 to the appropriate Dovecot IMAP proxy port based on the IP I assign to the group domain name in the site’s DNS. The SQL for handling the IMAP login uses the port number of the inet_listener I think this could work in production, but it will cost me extra to rent the 70 IPs and might be a pain to manage. Eventually, I would like to have over 5,000 groups so requiring an IP per group is less than ideal. I also think having Dovecot IMAP proxy have 5,000 inet_listeners might not work so well or might create too many threads/processes/ports to fit on a small proxy server. I would rather have 1 public IP for each Dovecot IMAP proxy and somehow communicate to the userdb which group domain name was configured in the email client so only the users assigned to this group can login with that username. Anyone have any ideas? For HTTP traffic, it is easy to query the host in the HTTP Request, but I don’t think IMAP traffic has such host info in it. Does the Dovecot IMAP proxy receive the hostname from the email client when exchanging SSL certs (like SNI for HTTPS)? Or, maybe I should have group domain in the username used to log in with (e.g., username+g23(a)example.com <mailto:username+g23@example.com> or username(a)g23.example.com <mailto:username@g23.example.com>). I don’t like to make the user configure their email client to log in with a name that is different than their mailbox address. It is simpler to just have them configure their email client with username(a)example.com <mailto:username@example.com> for both authorization and for the from/sender headers in the messages. Anyway, any ideas of how to set this up in production?

3 3

Outlook 2010 woes
by Bryan Holloway 12 Oct '16

12 Oct '16

Hello, everyone. We have recently begun migrating folks from an older server to a newer one, and things have been going quite well except for -- you guessed it -- Outlook 2010 users. Specifically it appears to be one customer in particular, and this particular customer has many nested mailboxes and lots of e-mail in general. Not sure if this is a factor. Old server: * Ubuntu 10.04.4 LTS * Dovecot 2.1.13 * Maildir++ * Local auth via passwd/shadow files New server: * Debian GNU/Linux 8.6 * Dovecot 2.2.13 * Maildir++ * Quotas enabled * LDAP Basically what's happening is that users are seeing large delays when navigating between different IMAP folders. So, for example, user "X" is sitting idle in their INBOX. If they then click on another folder there's a good 6-7 second delay before you can view its contents. If you immediately then navigate to other folders, you get a rapid response. But if the client then goes idle again for 10+ seconds, you will get this delay again. Some are reporting the OS saying "Outlook is not responding." (Everyone is running Windows 7.) Disclaimer: Yes, I know Outlook 2010 is a giant steaming pile of ____. However, everything worked dandy with Dovecot 2.1 and of course my customer is harping on this fact. Things I have tried/read about in the Dovecot list: * Check headers only -- doesn't seem to help. * Had a user completely remove their IMAP profile and re-add: no change. * Had a user set up an entirely new account on a new computer: same symptoms. * Someone mentioned to enable the "delay-newmail" workaround in 20-imap.conf, but this wasn't enabled in our 2.1 install, so that seems like it would not help our case. I was looking through the release notes of later Dovecots, and I noticed that in 2.2.14 there's mention of some issues with Outlook that were fixed, but it wasn't particularly specific about which versions. Should I be looking into that? And if so, is there a separate repository for newer dovecot? Currently the standard Debian 8.6 only has 2.2.13. Any help, suggestions, or pointers would be greatly appreciated. Thank you! - bryan

2 3

Problems with GSSAPI and LDAP
by Juha Koho 12 Oct '16

12 Oct '16

Hello, I have a Dovecot 2.2.25 set up with OpenLDAP back end. I was trying to set up a GSSAPI Kerberos authentication with the LDAP server but with little success. Seems no matter what I try I end up with the following error message: dovecot: auth: Error: LDAP: binding failed (dn (imap/host.example.com(a)EXAMPLE.COM)) Local error, SASL(-1): generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (No Kerberos credentials available (default cache: FILE:/tmp/dovecot.krb5.ccache)) I have set the import_environment in dovecot.conf: import_environment = TZ CORE_OUTOFMEM CORE_ERROR LISTEN_PID LISTEN_FDS KRB5CCNAME=FILE:/tmp/dovecot.krb5.ccache And these in LDAP configuration: dn = imap/host.example.com(a)EXAMPLE.COM sasl_bind = yes sasl_mech = gssapi sasl_realm = EXAMPLE.COM sasl_authz_id = imap/host.example.com(a)EXAMPLE.COM I have tried with different values in dn and sasl_authz_id and also leaving them out completely but I always end up with the error message above. Using simple bind without GSSAPI works just fine. The credentials cache file exists and is valid for the principal imap/host.example.com(a)EXAMPLE.COM. The file is owned by dovecot user so it shouldn't be a permission problem either. GSSAPI in OpenLDAP works but I suppose it is irrelevant here since the connection attempt never reaches the LDAP server due to the error. I also have similar setup for Postfix and it works fine. Any ideas what to try next? Best regards, Juha

2 9

Managesieve port 4190 not working
by Marcio Vogel Merlone dos Santos 12 Oct '16

12 Oct '16

Hi all, I am working on a fresh install with Ubuntu 16.04 LTS and Dovecot 2.2.22-1ubuntu2.1. I am unable to open port 4190, just 2000. I have this on 20-managesieve.conf: protocols = $protocols sieve service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service managesieve { process_limit = 1024 } protocol sieve { mail_debug=yes } This way I get only port 2000, if comment out the "sieve_deprecated" section leaving just the "inet_listener sieve" I get nothing. Could not find anything useful on logs or strace. Any hint? Thanks in advance, best regards. -- *Marcio Merlone*

2 1

Quota & prefetch uiserDB questions
by Cédric ML 12 Oct '16

12 Oct '16

Hello, I'm trying to make quota work on my dovecot server. I'm using prefetch userdb (source : http://wiki2.dovecot.org/UserDatabase/Prefetch) with a database located on a remote host : passdb { driver = sql args = /etc/dovecot/dovecot-sql.conf.ext } userdb { driver = prefetch } userdb { driver = sql args = /etc/dovecot/dovecot-sql.conf.ext } With password_query containing (source : http://wiki2.dovecot.org/Quota/Configuration) : password_query = SELECT \ username AS user, \ password, \ homedir AS userdb_home, \ maildir AS userdb_mail, \ uid AS userdb_uid, \ gid AS userdb_gid, \ CONCAT('*:bytes=', quota) AS userdb_quota_rule \ FROM mailbox \ WHERE username = '%u' When I change the quota value in DB, it's not reflected to maildirsize file of the user. If I delete maildirsize file, it's re-created but not with the quota value which is set in the DB. Questions : how is this maildirsize file created ? how is it updated ? is there a way to make maildir++ quota work with dovecot using prefetch userDB ? Or do I have to use dict quotas ? Many thanks for your help. Regards, Cédric

1 1

problem with quota warning script execution, error 75
by Ximo Mira 11 Oct '16

11 Oct '16

Hi, Im quite new to dovecot and im trying to run quota warning script with no success. Using "quota = count:User quota" and this script: ________________________ #!/bin/sh PERCENT=$1 USER=$2 cat << EOF | /usr/libexec/dovecot/dovecot-lda -d $USER -o "plugin/quota=count:User quota:noenforcing" From: support(a)company.com To: $USER Subject: Quota alert Quota usage is $PERCENT% Bye EOF ________________________ If I run the script manually from command line it works and message is delivered. If user reaches first configured limit (85%) Im getting this error. Oct 10 10:38:01 auth: Error: userdb(USER(a)DOMAIN.com): client doesn't have lookup permissions for this user: userdb reply doesn't contain uid (to bypass this check, set: service auth { unix_listener /var/run/dovecot/auth-userdb { mode=0777 } }) Oct 10 10:38:01 lda(USER(a)DOMAIN.com): Error: user USER(a)DOMAIN.com: Auth USER lookup failed Oct 10 10:38:01 lda: Fatal: Internal error occurred. Refer to server log for more information. Oct 10 10:38:01 quota-warning: Fatal: master: service(quota-warning): child 24515 returned error 75 Auth is LDAP based.

2 6

latest 2.2.25 Hibernation patch raises 100% cpu usage
by Harald Leithner 07 Oct '16

07 Oct '16

Hi, I use the xi Debian packages, the current 2.2.25 auto 47 build seams to include the commit 351aa01c6e I think this commit cases a 100% cpu usage. After some time 1-5 minutes the hibernate process uses 100% and strace floods the screen with: epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164437) = 3 epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164437) = 3 epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164436) = 3 epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164436) = 3 epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164436) = 3 epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164436) = 3 epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164436) = 3 epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164436) = 3 epoll_wait(9, {{EPOLLIN|EPOLLHUP, {u32=2609346112, u64=140044312999488}}, {EPOLLIN|EPOLLHUP, {u32=2609364288, u64=140044313017664}}, {EPOLLIN|EPOLLHUP, {u32=2609380304, u64=140044313033680}}}, 34, 164435) = 3 Maybe its a client thats incompatible, downgrading to version +46 solve the problem. bye Harald

2 1

quelques nouvelles infos
by bunkertor 07 Oct '16

07 Oct '16

Hey, Voici ce que je viens de lire et c’est quelque chose de vraiment nouveau et intéressant, vous pouvez en lire plus à <http://wetoxymo.betkers.net/xoikk> Grosses bises, bunkertor

1 0

[imap-login] SSL related crashes using the latest 2.2.25
by Adi Pircalabu 07 Oct '16

07 Oct '16

I'm running Dovecot as proxy in front of some IMAP/POP3 Dovecot & Courier-IMAP servers and in the last couple of days I've been seeing a lot of imap-login crashes (signal 11) on both 2.2.18 and 2.2.25, all SSL related. The following backtraces are taken running 2.2.25, built from source on a test system similar to the live proxy servers. OS: CentOS 6.8 64bit Packages: openssl-1.0.1e-48.el6_8.3.x86_64, dovecot-2.2.25-2.el6.x86_64 built from source RPM. Can post "doveconf -a" if required. Core was generated by `dovecot/imap-login -D'. Program terminated with signal 11, Segmentation fault. #0 ssl_proxy_has_broken_client_cert (proxy=0x0) at ssl-proxy-openssl.c:677 677 { (gdb) bt full #0 ssl_proxy_has_broken_client_cert (proxy=0x0) at ssl-proxy-openssl.c:677 No locals. #1 0x00007fdec4e6b489 in login_proxy_ssl_handshaked (context=0x14b4170) at login-proxy.c:759 proxy = 0x14b4170 #2 0x00007fdec4e70e4b in ssl_handshake (proxy=0x169d7b0) at ssl-proxy-openssl.c:468 ret = <value optimized out> #3 ssl_step (proxy=0x169d7b0) at ssl-proxy-openssl.c:519 No locals. #4 0x00007fdec4beee0b in io_loop_call_io (io=0x13fdab0) at ioloop.c:564 ioloop = 0x12a07b0 t_id = 2 __FUNCTION__ = "io_loop_call_io" #5 0x00007fdec4bf0407 in io_loop_handler_run_internal (ioloop=<value optimized out>) at ioloop-epoll.c:220 ctx = 0x12fb8d0 events = <value optimized out> event = 0x171fb20 list = 0x15f8c50 io = <value optimized out> tv = {tv_sec = 46, tv_usec = 134490} events_count = <value optimized out> msecs = <value optimized out> ret = 1 i = <value optimized out> call = <value optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #6 0x00007fdec4beeeb5 in io_loop_handler_run (ioloop=0x12a07b0) at ioloop.c:612 No locals. #7 0x00007fdec4bef058 in io_loop_run (ioloop=0x12a07b0) at ioloop.c:588 __FUNCTION__ = "io_loop_run" #8 0x00007fdec4b81b23 in master_service_run (service=0x12a0650, callback=<value optimized out>) at master-service.c:640 No locals. #9 0x00007fdec4e6e593 in login_binary_run (binary=<value optimized out>, argc=2, argv=0x12a0390) at main.c:486 set_pool = 0x12a0b80 login_socket = <value optimized out> c = <value optimized out> #10 0x00007fdec47dad1d in __libc_start_main (main=0x402ac0 <main>, argc=2, ubp_av=0x7ffc53ee5688, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7ffc53ee5678) at libc-start.c:226 result = <value optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 5496455093114277129, 4204960, 140721716614784, 0, 0, -5494405746439844599, -5477823887334535927}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x404f70, 0x7ffc53ee5688}, data = { prev = 0x0, cleanup = 0x0, canceltype = 4214640}}} not_first_call = <value optimized out> #11 0x00000000004029c9 in _start () No symbol table info available. Core was generated by `dovecot/imap-login -D'. Program terminated with signal 11, Segmentation fault. #0 0x00007f1a58620dec in _IO_vfprintf_internal (s=<value optimized out>, format=<value optimized out>, ap=<value optimized out>) at vfprintf.c:1641 1641 process_string_arg (((struct printf_spec *) NULL)); (gdb) bt full #0 0x00007f1a58620dec in _IO_vfprintf_internal (s=<value optimized out>, format=<value optimized out>, ap=<value optimized out>) at vfprintf.c:1641 len = <value optimized out> string_malloced = <value optimized out> step0_jumps = {0, -1285, -1198, 3818, 3910, 3206, 3307, 4086, 1925, 2133, 2249, 3731, 4474, -4059, -1109, -1062, 868, 956, 968, 980, -1505, -495, 665, 755, 827, -3962, 395, 4392, -4059, 3997} space = 0 is_short = 0 use_outdigits = 0 step1_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, 2133, 2249, 3731, 4474, -4059, -1109, -1062, 868, 956, 968, 980, -1505, -495, 665, 755, 827, -3962, 395, 4392, -4059, 0} group = 0 prec = -1 step2_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2249, 3731, 4474, -4059, -1109, -1062, 868, 956, 968, 980, -1505, -495, 665, 755, 827, -3962, 395, 4392, -4059, 0} string = <value optimized out> left = 0 is_long_double = 0 width = 0 step3a_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2336, 0, 0, 0, -1109, -1062, 868, 956, 968, 0, 0, 0, 0, 755, 0, 0, 0, 0, 0, 0} alt = 0 showsign = 0 is_long = 0 is_char = 0 pad = 32 ' ' step3b_jumps = {0 <repeats 11 times>, 4474, 0, 0, -1109, -1062, 868, 956, 968, 980, -1505, -495, 665, 755, 827, -3962, 395, 0, 0, 0} step4_jumps = {0 <repeats 14 times>, -1109, -1062, 868, 956, 968, 980, -1505, -495, 665, 755, 827, -3962, 395, 0, 0, 0} is_negative = <value optimized out> base = <value optimized out> the_arg = {pa_wchar = 0 L'\000', pa_int = 0, pa_long_int = 0, pa_long_long_int = 0, pa_u_int = 0, pa_u_long_int = 0, pa_u_long_long_int = 0, pa_double = 0, pa_long_double = 0, pa_string = 0x0, pa_wstring = 0x0, pa_pointer = 0x0, pa_user = 0x0} spec = 115 's' _buffer = {__routine = 0, __arg = 0xf583a1d84, __canceltype = 24, __prev = 0x0} _avail = <value optimized out> thousands_sep = 0x0 grouping = 0xffffffffffffffff <Address 0xffffffffffffffff out of bounds> done = 97 f = 0x7f1a58c90b0d "s" lead_str_end = 0x7f1a58c90b05 "%s:%u: %s" end_of_spec = <value optimized out> work_buffer = "\341v\361[\372\037\002\363\315\301y\017\302.\a\272\306B\267\001\377\244\276Uu\023\005\301\a\227\f\353\374\062V\002\000\000\000\000\320\006}S\375\177\000\000\340\062V\002\000\000\000\000\273\252\377W\032\177\000\000(\036f\002\000\000\000\000|\004}S\375\177\000\000\320\006}S\375\177\000\000a+\aX\032\177\000\000(\036f\002\000\000\000\000 \036f\002\000\000\000\000\360\003}S\375\177\000\000\301\025\000X\000\000\000\000\210\033f\002\000\000\000\000(\036f\002\024\000\000\000\t`\v\217~0\"\"\\\200'\217X_\331q\325o\244\210\000\000\000\000\340\062V\002\000\000\000\000\n\000\000\000\000\000\000\000Wo\020X\000\000\000\000\b\024V\002\000\000\000\000\226$\377W\032\177\000\000\001\000\000\000\000\000\000\000\211\001\000\000\000\000\000\000\260\006}S\375\177\000\000\240\257\235\003\000\000\000\000\260\006}S\375\177\000\000\200"... workstart = 0x0 workend = 0x7ffd537d0748 "" ap_save = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0x7ffd537d0b60, reg_save_area = 0x7ffd537d0aa0}} nspecs_done = 2 save_errno = 0 readonly_format = 0 args_malloced = 0x0 specs = 0xa00000001 specs_malloced = false jump_table = "\001\000\000\004\000\016\000\006\000\000\a\002\000\003\t\000\005\b\b\b\b\b\b\b\b\b\000\000\000\000\000\000\000\032\000\031\000\023\023\023\000\035\000\000\f\000\000\000\000\000\000\025\000\000\000\000\022\000\r\000\000\000\000\000\000\032\000\024\017\023\023\023\n\017\034\000\v\030\027\021\026\f\000\025\033\020\000\000\022\000\r" #1 0x00007f1a586d8c50 in ___vsnprintf_chk ( s=0x1fe0e38 "proxy: Received invalid SSL certificate from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315:6: k/CN=AddTrust External CA Root", maxlen=<value optimized out>, flags=1, slen=<value optimized out>, format=0x7f1a58c90ad8 "proxy: Received invalid SSL certificate from %s:%u: %s", args=0x7ffd537d0a80) at vsnprintf_chk.c:65 sf = {f = {_sbf = {_f = {_flags = -72515583, _IO_read_ptr = 0x1fe0e38 "proxy: Received invalid SSL certificate from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315:6: k/CN=AddTrust External CA Root", _IO_read_end = 0x1fe0e38 "proxy: Received invalid SSL certificate from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315:6: k/CN=AddTrust External CA Root", _IO_read_base = 0x1fe0e38 "proxy: Received invalid SSL certificate from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315:6: k/CN=AddTrust External CA Root", _IO_write_base = 0x1fe0e38 "proxy: Received invalid SSL certificate from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315:6: k/CN=AddTrust External CA Root", _IO_write_ptr = 0x1fe0e99 "k/CN=AddTrust External CA Root", _IO_write_end = 0x1fe0f6d "oodvale.vic.au): disconnecting 127.0.0.1 (Disconnected by client: EOF(0s idle, in=217, out=796))", _IO_buf_base = 0x1fe0e38 "proxy: Received invalid SSL certificate from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315:6: k/CN=AddTrust External CA Root", _IO_buf_end = 0x1fe0f6d "oodvale.vic.au): disconnecting 127.0.0.1 (Disconnected by client: EOF(0s idle, in=217, out=796))", _IO_save_base = 0x0, _IO_backup_base = 0x0, _IO_save_end = 0x0, _markers = 0x0, _chain = 0x0, _fileno = 1489493956, _flags2 = 4, _old_offset = 139751135368008, _cur_column = 0, _vtable_offset = -57 '\307', _shortbuf = "X", _lock = 0x0, _offset = 4294967673, _codecvt = 0x381f620, _wide_data = 0x7ffd537d09c0, _freeres_list = 0x0, _freeres_buf = 0x7ffd537d0ab0, _freeres_size = 140726004157144, _mode = -1, _unused2 = "\032\177\000\000\000\000\000\000\000\000\000\000\315\320e\207\000\000\000"}, vtable = 0x7f1a58966440}, _s = { _allocate_buffer = 0, _free_buffer = 0}}, overflow_buf = "\001", '\000' <repeats 15 times>, "\001\000\000\000\000\000\000\000\350V\vY\032\177\000\000\200\302g\256\333\333;\221\330\n\311X\032\177\000\000\034\n}S\375\177\000\000\002\000\000\000\000\000\000"} ret = <value optimized out> #2 0x00007f1a58a220ff in vsnprintf (format=0x7f1a58c90ad8 "proxy: Received invalid SSL certificate from %s:%u: %s", args=0x7ffd537d0a80, size_r=0x7ffd537d0a5c) at /usr/include/bits/stdio2.h:78 No locals. #3 t_noalloc_strdup_vprintf (format=0x7f1a58c90ad8 "proxy: Received invalid SSL certificate from %s:%u: %s", args=0x7ffd537d0a80, size_r=0x7ffd537d0a5c) at strfuncs.c:132 args2 = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0x7ffd537d0b60, reg_save_area = 0x7ffd537d0aa0}} tmp = 0x1fe0e38 "proxy: Received invalid SSL certificate from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315:6: k/CN=AddTrust External CA Root" init_size = 310 ret = <value optimized out> __FUNCTION__ = "t_noalloc_strdup_vprintf" #4 0x00007f1a58a221d9 in p_strdup_vprintf (pool=0x7f1a58c76830, format=<value optimized out>, args=<value optimized out>) at strfuncs.c:156 tmp = <value optimized out> buf = <value optimized out> size = <value optimized out> #5 0x00007f1a58a222ea in t_strdup_printf (format=<value optimized out>) at strfuncs.c:263 args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7ffd537d0b60, reg_save_area = 0x7ffd537d0aa0}} ret = 0x0 #6 0x00007f1a58c88548 in login_proxy_ssl_handshaked (context=0x3141260) at login-proxy.c:760 proxy = 0x3141260 #7 0x00007f1a58c8de4b in ssl_handshake (proxy=0x3498970) at ssl-proxy-openssl.c:468 ret = <value optimized out> #8 ssl_step (proxy=0x3498970) at ssl-proxy-openssl.c:519 No locals. #9 0x00007f1a58a0be0b in io_loop_call_io (io=0x322e900) at ioloop.c:564 ioloop = 0x1f817b0 t_id = 2 __FUNCTION__ = "io_loop_call_io" #10 0x00007f1a58a0d407 in io_loop_handler_run_internal (ioloop=<value optimized out>) at ioloop-epoll.c:220 ctx = 0x1fdc8d0 events = <value optimized out> event = 0x34a22e8 list = 0x317b250 io = <value optimized out> tv = {tv_sec = 0, tv_usec = 614018} events_count = <value optimized out> msecs = <value optimized out> ret = 3 i = <value optimized out> call = <value optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #11 0x00007f1a58a0beb5 in io_loop_handler_run (ioloop=0x1f817b0) at ioloop.c:612 No locals. #12 0x00007f1a58a0c058 in io_loop_run (ioloop=0x1f817b0) at ioloop.c:588 __FUNCTION__ = "io_loop_run" #13 0x00007f1a5899eb23 in master_service_run (service=0x1f81650, callback=<value optimized out>) at master-service.c:640 No locals. #14 0x00007f1a58c8b593 in login_binary_run (binary=<value optimized out>, argc=2, argv=0x1f81390) at main.c:486 set_pool = 0x1f81b80 login_socket = <value optimized out> c = <value optimized out> #15 0x00007f1a585f7d1d in __libc_start_main (main=0x402ac0 <main>, argc=2, ubp_av=0x7ffd537d0de8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7ffd537d0dd8) at libc-start.c:226 result = <value optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6805578527007124004, 4204960, 140726004157920, 0, 0, 6806940805326362076, 6897556252474660316}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x404f70, 0x7ffd537d0de8}, data = { prev = 0x0, cleanup = 0x0, canceltype = 4214640}}} not_first_call = <value optimized out> #16 0x00000000004029c9 in _start () No symbol table info available. Core was generated by `dovecot/imap-login -D'. Program terminated with signal 11, Segmentation fault. #0 t_strcut (str=0xffffffffffffffff <Address 0xffffffffffffffff out of bounds>, cutchar=64 '@') at strfuncs.c:294 294 for (p = str; *p != '\0'; p++) { (gdb) bt full #0 t_strcut (str=0xffffffffffffffff <Address 0xffffffffffffffff out of bounds>, cutchar=64 '@') at strfuncs.c:294 p = 0xffffffffffffffff <Address 0xffffffffffffffff out of bounds> #1 0x00007f1afa1a7d2f in get_var_expand_users (tab=0x1c37e98, user=0xffffffffffffffff <Address 0xffffffffffffffff out of bounds>) at client-common.c:523 i = <value optimized out> #2 0x00007f1afa1a7f29 in get_var_expand_table (client=0x27b85b0, msg=0x1c37e38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315@:6") at client-common.c:541 tab = 0x1c37e98 #3 client_get_log_str (client=0x27b85b0, msg=0x1c37e38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315@:6") at client-common.c:644 static_tab = {{key = 115 's', value = 0x0, long_key = 0x0}, {key = 36 '$', value = 0x0, long_key = 0x0}, {key = 0 '\000', value = 0x0, long_key = 0x0}} func_table = {{key = 0x7f1afa1b2d0c "passdb", func = 0x7f1afa1a7c70 <client_var_expand_func_passdb>}, {key = 0x0, func = 0}} tab = <value optimized out> e = <value optimized out> str = <value optimized out> str2 = <value optimized out> pos = <value optimized out> #4 0x00007f1afa1a847a in client_log_err (client=0x27b85b0, msg=0x1c37e38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315@:6") at client-common.c:692 _data_stack_cur_id = 3 #5 0x00007f1afa1ab51e in login_proxy_ssl_handshaked (context=0x237e910) at login-proxy.c:765 proxy = 0x237e910 #6 0x00007f1afa1b0e4b in ssl_handshake (proxy=0x23cb660) at ssl-proxy-openssl.c:468 ret = <value optimized out> #7 ssl_step (proxy=0x23cb660) at ssl-proxy-openssl.c:519 No locals. #8 0x00007f1af9f2ee0b in io_loop_call_io (io=0x285cf20) at ioloop.c:564 ioloop = 0x1bd87b0 t_id = 2 __FUNCTION__ = "io_loop_call_io" #9 0x00007f1af9f30407 in io_loop_handler_run_internal (ioloop=<value optimized out>) at ioloop-epoll.c:220 ctx = 0x1c338d0 events = <value optimized out> event = 0x260eac0 list = 0x227b980 io = <value optimized out> tv = {tv_sec = 0, tv_usec = 519697} events_count = <value optimized out> msecs = <value optimized out> ret = 1 i = <value optimized out> call = <value optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #10 0x00007f1af9f2eeb5 in io_loop_handler_run (ioloop=0x1bd87b0) at ioloop.c:612 No locals. #11 0x00007f1af9f2f058 in io_loop_run (ioloop=0x1bd87b0) at ioloop.c:588 __FUNCTION__ = "io_loop_run" #12 0x00007f1af9ec1b23 in master_service_run (service=0x1bd8650, callback=<value optimized out>) at master-service.c:640 No locals. #13 0x00007f1afa1ae593 in login_binary_run (binary=<value optimized out>, argc=2, argv=0x1bd8390) at main.c:486 set_pool = 0x1bd8b80 login_socket = <value optimized out> c = <value optimized out> #14 0x00007f1af9b1ad1d in __libc_start_main (main=0x402ac0 <main>, argc=2, ubp_av=0x7ffcdfc7cd68, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7ffcdfc7cd58) at libc-start.c:226 result = <value optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -5108975228267825424, 4204960, 140724062899552, 0, 0, 5107356402929858288, 5128673613026916080}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x404f70, 0x7ffcdfc7cd68}, data = { prev = 0x0, cleanup = 0x0, canceltype = 4214640}}} not_first_call = <value optimized out> #15 0x00000000004029c9 in _start () No symbol table info available. Core was generated by `dovecot/imap-login -D'. Program terminated with signal 11, Segmentation fault. #0 ssl_proxy_is_handshaked (proxy=0x21a930a940a43715) at ssl-proxy-openssl.c:720 720 { (gdb) bt full #0 ssl_proxy_is_handshaked (proxy=0x21a930a940a43715) at ssl-proxy-openssl.c:720 No locals. #1 0x00007f0c84b63326 in get_var_expand_table (client=0xc49c50, msg=0x8b5e38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315@:6") at client-common.c:556 ssl_state = <value optimized out> ssl_error = <value optimized out> tab = 0x8b5e98 #2 client_get_log_str (client=0xc49c50, msg=0x8b5e38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315@:6") at client-common.c:644 static_tab = {{key = 115 's', value = 0x0, long_key = 0x0}, {key = 36 '$', value = 0x0, long_key = 0x0}, {key = 0 '\000', value = 0x0, long_key = 0x0}} func_table = {{key = 0x7f0c84b6dd0c "passdb", func = 0x7f0c84b62c70 <client_var_expand_func_passdb>}, {key = 0x0, func = 0}} tab = <value optimized out> e = <value optimized out> str = <value optimized out> str2 = <value optimized out> pos = <value optimized out> #3 0x00007f0c84b6347a in client_log_err (client=0xc49c50, msg=0x8b5e38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\b\315@:6") at client-common.c:692 _data_stack_cur_id = 3 #4 0x00007f0c84b6651e in login_proxy_ssl_handshaked (context=0xf464b0) at login-proxy.c:765 proxy = 0xf464b0 #5 0x00007f0c84b6be4b in ssl_handshake (proxy=0xd5d600) at ssl-proxy-openssl.c:468 ret = <value optimized out> #6 ssl_step (proxy=0xd5d600) at ssl-proxy-openssl.c:519 No locals. #7 0x00007f0c848e9e0b in io_loop_call_io (io=0xdf5ea0) at ioloop.c:564 ioloop = 0x8567b0 t_id = 2 __FUNCTION__ = "io_loop_call_io" #8 0x00007f0c848eb407 in io_loop_handler_run_internal (ioloop=<value optimized out>) at ioloop-epoll.c:220 ctx = 0x8b18d0 events = <value optimized out> event = 0xf305f0 list = 0xc4a700 io = <value optimized out> tv = {tv_sec = 0, tv_usec = 954174} events_count = <value optimized out> msecs = <value optimized out> ret = 1 i = <value optimized out> call = <value optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #9 0x00007f0c848e9eb5 in io_loop_handler_run (ioloop=0x8567b0) at ioloop.c:612 No locals. #10 0x00007f0c848ea058 in io_loop_run (ioloop=0x8567b0) at ioloop.c:588 __FUNCTION__ = "io_loop_run" #11 0x00007f0c8487cb23 in master_service_run (service=0x856650, callback=<value optimized out>) at master-service.c:640 No locals. #12 0x00007f0c84b69593 in login_binary_run (binary=<value optimized out>, argc=2, argv=0x856390) at main.c:486 set_pool = 0x856b80 login_socket = <value optimized out> c = <value optimized out> #13 0x00007f0c844d5d1d in __libc_start_main (main=0x402ac0 <main>, argc=2, ubp_av=0x7ffd41fc1f28, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7ffd41fc1f18) at libc-start.c:226 result = <value optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -3476376496289340868, 4204960, 140725710495520, 0, 0, 3475633251103023676, 3591732184888123964}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x404f70, 0x7ffd41fc1f28}, data = { prev = 0x0, cleanup = 0x0, canceltype = 4214640}}} not_first_call = <value optimized out> #14 0x00000000004029c9 in _start () No symbol table info available. Core was generated by `dovecot/imap-login -D'. Program terminated with signal 11, Segmentation fault. #0 0x00007ff9e5e5f40b in p_malloc (pool=0x1f10c90, str=0x1f1d3d0 "4qyKMRI+AAAAAAAA") at mempool.h:76 76 return pool->v->malloc(pool, size); (gdb) bt full #0 0x00007ff9e5e5f40b in p_malloc (pool=0x1f10c90, str=0x1f1d3d0 "4qyKMRI+AAAAAAAA") at mempool.h:76 No locals. #1 p_strdup (pool=0x1f10c90, str=0x1f1d3d0 "4qyKMRI+AAAAAAAA") at strfuncs.c:43 mem = <value optimized out> len = 17 #2 0x00007ff9e60c2e9f in client_get_session_id (client=0x1f10980) at client-common.c:482 buf = 0x1f1d328 base64_buf = 0x1f1d398 tv = {tv_sec = 1475622745, tv_usec = 58530} timestamp = 1475622745058530 i = 48 #3 0x00007ff9e60c302c in get_var_expand_table (client=0x1f10980, msg=0x1f1ce38 "proxy: SSL certificate not received from (null):0") at client-common.c:568 tab = 0x1f1ce70 #4 client_get_log_str (client=0x1f10980, msg=0x1f1ce38 "proxy: SSL certificate not received from (null):0") at client-common.c:644 static_tab = {{key = 115 's', value = 0x0, long_key = 0x0}, {key = 36 '$', value = 0x0, long_key = 0x0}, {key = 0 '\000', value = 0x0, long_key = 0x0}} func_table = {{key = 0x7ff9e60cdd0c "passdb", func = 0x7ff9e60c2c70 <client_var_expand_func_passdb>}, {key = 0x0, func = 0}} tab = <value optimized out> e = <value optimized out> str = <value optimized out> str2 = <value optimized out> pos = <value optimized out> #5 0x00007ff9e60c347a in client_log_err (client=0x1f10980, msg=0x1f1ce38 "proxy: SSL certificate not received from (null):0") at client-common.c:692 _data_stack_cur_id = 3 #6 0x00007ff9e60c651e in login_proxy_ssl_handshaked (context=0x256cfb0) at login-proxy.c:765 proxy = 0x256cfb0 #7 0x00007ff9e60cbe4b in ssl_handshake (proxy=0x23f6710) at ssl-proxy-openssl.c:468 ret = <value optimized out> #8 ssl_step (proxy=0x23f6710) at ssl-proxy-openssl.c:519 No locals. #9 0x00007ff9e5e49e0b in io_loop_call_io (io=0x256cc40) at ioloop.c:564 ioloop = 0x1ebd7b0 t_id = 2 __FUNCTION__ = "io_loop_call_io" #10 0x00007ff9e5e4b407 in io_loop_handler_run_internal (ioloop=<value optimized out>) at ioloop-epoll.c:220 ctx = 0x1f188d0 events = <value optimized out> event = 0x24d25f0 list = 0x2561f10 io = <value optimized out> tv = {tv_sec = 0, tv_usec = 551105} events_count = <value optimized out> msecs = <value optimized out> ret = 1 i = <value optimized out> call = <value optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #11 0x00007ff9e5e49eb5 in io_loop_handler_run (ioloop=0x1ebd7b0) at ioloop.c:612 No locals. #12 0x00007ff9e5e4a058 in io_loop_run (ioloop=0x1ebd7b0) at ioloop.c:588 __FUNCTION__ = "io_loop_run" #13 0x00007ff9e5ddcb23 in master_service_run (service=0x1ebd650, callback=<value optimized out>) at master-service.c:640 No locals. #14 0x00007ff9e60c9593 in login_binary_run (binary=<value optimized out>, argc=2, argv=0x1ebd390) at main.c:486 set_pool = 0x1ebdb80 login_socket = <value optimized out> c = <value optimized out> #15 0x00007ff9e5a35d1d in __libc_start_main (main=0x402ac0 <main>, argc=2, ubp_av=0x7ffe367d2178, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7ffe367d2168) at libc-start.c:226 result = <value optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -3428671975511032229, 4204960, 140729812590960, 0, 0, 3429075480732761691, 3429810282407657051}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x404f70, 0x7ffe367d2178}, data = { prev = 0x0, cleanup = 0x0, canceltype = 4214640}}} not_first_call = <value optimized out> #16 0x00000000004029c9 in _start () No symbol table info available. Core was generated by `dovecot/imap-login -D'. Program terminated with signal 11, Segmentation fault. #0 0x00007f029b173314 in str_sanitize_skip_start (src=0x2f6d6f632e61636f <Address 0x2f6d6f632e61636f out of bounds>, max_bytes=64) at str-sanitize.c:13 13 for (i = 0; i < max_bytes && src[i] != '\0'; ) { (gdb) bt full #0 0x00007f029b173314 in str_sanitize_skip_start (src=0x2f6d6f632e61636f <Address 0x2f6d6f632e61636f out of bounds>, max_bytes=64) at str-sanitize.c:13 chr = 0 i = 0 #1 str_sanitize (src=0x2f6d6f632e61636f <Address 0x2f6d6f632e61636f out of bounds>, max_bytes=64) at str-sanitize.c:88 str = <value optimized out> i = <value optimized out> #2 0x00007f029b3d7f9e in get_var_expand_table (client=0x221ee70, msg=0x187fe38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\bͰ\a\202\001:6") at client-common.c:548 tab = 0x187fe98 #3 client_get_log_str (client=0x221ee70, msg=0x187fe38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\bͰ\a\202\001:6") at client-common.c:644 static_tab = {{key = 115 's', value = 0x0, long_key = 0x0}, {key = 36 '$', value = 0x0, long_key = 0x0}, {key = 0 '\000', value = 0x0, long_key = 0x0}} func_table = {{key = 0x7f029b3e2d0c "passdb", func = 0x7f029b3d7c70 <client_var_expand_func_passdb>}, {key = 0x0, func = 0}} tab = <value optimized out> e = <value optimized out> str = <value optimized out> str2 = <value optimized out> pos = <value optimized out> #4 0x00007f029b3d847a in client_log_err (client=0x221ee70, msg=0x187fe38 "proxy: SSL certificate not received from \314-A\235q\210\021\b\354\062Lzح)\367.\002 \031\233 \362w⊓\224\356K7\343\224 \002\037\364!+\266\371\277O`K\021\bͰ\a\202\001:6") at client-common.c:692 _data_stack_cur_id = 3 #5 0x00007f029b3db51e in login_proxy_ssl_handshaked (context=0x19b2530) at login-proxy.c:765 proxy = 0x19b2530 #6 0x00007f029b3e0e4b in ssl_handshake (proxy=0x195df70) at ssl-proxy-openssl.c:468 ret = <value optimized out> #7 ssl_step (proxy=0x195df70) at ssl-proxy-openssl.c:519 No locals. #8 0x00007f029b15ee0b in io_loop_call_io (io=0x216d790) at ioloop.c:564 ioloop = 0x18207b0 t_id = 2 __FUNCTION__ = "io_loop_call_io" #9 0x00007f029b160407 in io_loop_handler_run_internal (ioloop=<value optimized out>) at ioloop-epoll.c:220 ctx = 0x187b8d0 events = <value optimized out> event = 0x1df4668 list = 0x2025710 io = <value optimized out> tv = {tv_sec = 11, tv_usec = 323409} events_count = <value optimized out> msecs = <value optimized out> ret = 3 i = <value optimized out> call = <value optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #10 0x00007f029b15eeb5 in io_loop_handler_run (ioloop=0x18207b0) at ioloop.c:612 No locals. #11 0x00007f029b15f058 in io_loop_run (ioloop=0x18207b0) at ioloop.c:588 __FUNCTION__ = "io_loop_run" #12 0x00007f029b0f1b23 in master_service_run (service=0x1820650, callback=<value optimized out>) at master-service.c:640 No locals. #13 0x00007f029b3de593 in login_binary_run (binary=<value optimized out>, argc=2, argv=0x1820390) at main.c:486 set_pool = 0x1820b80 login_socket = <value optimized out> c = <value optimized out> #14 0x00007f029ad4ad1d in __libc_start_main (main=0x402ac0 <main>, argc=2, ubp_av=0x7ffd637fd608, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7ffd637fd5f8) at libc-start.c:226 result = <value optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -4141182239951058275, 4204960, 140726272775680, 0, 0, 4142562126330825373, 4071998539020864157}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x404f70, 0x7ffd637fd608}, data = { prev = 0x0, cleanup = 0x0, canceltype = 4214640}}} not_first_call = <value optimized out> #15 0x00000000004029c9 in _start () No symbol table info available. -- Adi Pircalabu

2 2

[feature suggestion] pigeonhole - sendmail path for outgoing email
by krzf83＠gmail.com 06 Oct '16

06 Oct '16

pigeonhole seems to use /usr/sbin/sendmail for its outgoing emails - even tought that is does not seem to be documented anywhere. How about setting to specify diffrent sendmail program path and parameters?

3 4

doveadm reload kicked proxy/director users
by Peer Heinlein 06 Oct '16

06 Oct '16

We just noticed, that a doveadm reload kicked all existing imap-sessions on our Dovecot Director. We're surprised about that, because shutdown_clients is set to NO. Is there any way to reload a config change without kicking all IMAP sessions? Peer -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

1 0

Changing Dovecot's format from Maildir to mdbox
by Kristopher Joyce 05 Oct '16

05 Oct '16

Hello, I am trying to change Dovecot's email format from Maildir to mdbox. I have changed Maildir to mdbox in Mail_location from: maildir:/var/vmail/%d/%n to: mdbox:/var/vmail/%d/%n. Nothing seems to happen after I restart Dovecot. The users are virtual users and not local users. Is there something I am missing? Thanks Kris --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

2 1

Connection reset by peer query
by voytek＠sbt.net.au 05 Oct '16

05 Oct '16

One of my user having trouble 'synchronizing' his mobile with his mailbox looking at logs I can see like[1]: searching around, I found some posts suggesting index corruption?? what can or what should I do ? can I force re-index ? delete index files ? which ones ? using outlook on Win7, if relevant [1] Oct 05 11:24:32 imap(aaa(a)aaa.com.au): Info: Connection closed: Connection reset by peer in=238 out=1892993 # grep aaa@aaa /var/log/dovecot.log | grep reset | wc 10 130 1117 # grep aaa@aaa /var/log/dovecot.log.1 | grep reset | wc 30 406 3582

1 0

Dovecot + SAN with dedup+compression
by María Arrea 04 Oct '16

04 Oct '16

Hello We have a big Dovecot Server (over 20 TB of mail, 40K users, over 30K iops) and we are evaluating a new SAN Array. We have competitive proposals from Pure Storage (All Flash) , HP 3Par (Hybrid), NetApp FaaS (Hybrid) & EMC Unity (Hybrid). We rely in mdbox+zlib for main storage and mdbox+lzma for secondary storage, does anybody in the list have experience with SAN-based deduplication/compression? Regards Maria.

2 1

shared folders
by Scherff 04 Oct '16

04 Oct '16

Well, these is the complete output for dovecot -n : mail:~ # dovecot -n # 2.2.18: /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.8 (0c4ae064f307+) # OS: Linux 4.1.31-30-default x86_64 openSUSE 42.1 (x86_64) auth_mechanisms = plain login mail_gid = vmail mail_home = /var/vmail/mailboxes/%d/%n mail_location = maildir:~/mail:LAYOUT=fs mail_plugins = " acl" 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 namespace { hidden = no ignore_on_failure = no list = children location = maildir:%%h/mail:INDEX=%h/mail/shared/%%u:CONTROL=%h/mail/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { inbox = yes location = mailbox Archives { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Notes { auto = subscribe } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { acl = vfile:/var/vmail/dovecot-acl acl_shared_dict = file:/var/vmail/db/shared-mailboxes.db quota = maildir:User quota quota_exceeded_message = Benutzer %u hat das Speichervolumen überschritten. / User %u has exhausted allowed storage space. sieve = /var/vmail/sieve/%d/%n/active-script.sieve sieve_before = /var/vmail/sieve/global/spam-global.sieve sieve_dir = /var/vmail/sieve/%d/%n/scripts zlib_save = gz zlib_save_level = 6 } 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 imap { port = 143 } } 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 } } ssl = required ssl_cert = </etc/fullchain.pem ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA ssl_dh_parameters_length = 2048 ssl_key = </etc/privkey.pem ssl_prefer_server_ciphers = yes userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol imap { imap_idle_notify_interval = 15 mins mail_max_userip_connections = 100 mail_plugins = " acl quota imap_quota zlib imap_acl" } protocol lmtp { mail_plugins = " acl sieve zlib" }

2 2

Dovecot + SAMBA4
by doys 04 Oct '16

04 Oct '16

hello, I'm new to this forum:) I couldn't found any topic with the same problem and I'm sorry for the inconvenience if there is already one. I'd like to use Dovecot with an authentification from Samba4 via Kerberos. I've followed this procedure : http://wiki2.dovecot.org/Authentication/Kerberos but I cannot connect to the domain. I have not met any difficulty with Samba ; I have others servers that are connected to the samba4 domain via samba/winbind wbinfo -u / -g et getent passwod / group works fine. I don't find the error and the logs are fruitless : Oct 4 09:03:46 mail dovecot: imap-login: Aborted login (no auth attempts in 0 secs): user=<>, rip=MY_IP, lip=IP_SERVER, session=<4ilrqQQ+2AAKaBFq> Oct 4 09:03:46 mail dovecot: imap-login: Aborted login (no auth attempts in 0 secs): user=<>, rip=MY_IP, lip=IP_SERVER, session=<7SprqQQ+2QAKaBFq> Oct 4 09:03:55 mail dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=MY_IP, lip=IP_SERVER, session=<JmjtqQQ+2gAKaBFq> Oct 4 09:03:55 mail dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=MY_IP, lip=IP_SERVER, session=<UyHuqQQ+2wAKaBFq> This is my docevot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.6 auth_default_realm = DOMAIN.COM auth_gssapi_hostname = $ALL auth_mechanisms = gssapi auth_realms = DOMAIN.COM auth_username_translation = /@ mail_location = maildir:~/Maildir 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 = } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = " imap pop3" ssl = no userdb { driver = static } I wish to use maildir and I wish not to have multidomain. The server is a Debian 8 with compilated samba 4.4.5 + dovecot 2.2.13 (deb file). i dovecot-core - secure POP3/IMAP server - core files i dovecot-gssapi - secure POP3/IMAP server - GSSAPI support i dovecot-imapd - secure POP3/IMAP server - IMAP daemon i dovecot-pop3d - secure POP3/IMAP server - POP3 daemon i dovecot-sieve - secure POP3/IMAP server - Sieve filters su And this is what telnet returns : telnet localhost 143 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LOGINDISABLED AUTH=GSSAPI] Dovecot ready. Can you give me a hint, please ? Thank you ! doys Messages: 1 Inscrit le: 2016-10-04 10:31 Haut -- View this message in context: http://dovecot.2317879.n4.nabble.com/Dovecot-SAMBA4-tp57421.html Sent from the Dovecot mailing list archive at Nabble.com.

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Re: NFSv4 and Maildir
by Joseph Tam 04 Oct '16

04 Oct '16

Noel Butler writes: >> I found the same thing, and turning off write delegation seemed >> to have solved the problem. I still don't know why, though. > > write delegation is disabled by default on NetApp with v4, or have they > changed this now? I think this is still the case: when I exported NFSv4, I also turned on both r/w delegation as well. The exported filesystem exhibited weird locking or slow write operations on NFS clients (e.g. "touch newfile" would take a second to complete). This went away when I turned off write delegation. Joseph Tam <jtam.home(a)gmail.com>

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doveadm backup fails (compromised single attachment storage)
by Webert de Souza Lima 03 Oct '16

03 Oct '16

Hi, A couple of months ago I had a problem with Single Attachment Storage after infrastructure migration; All mailboxes were rsynced to another filesystem, and that may have broken Single Attachment Storage. Many, many (if not all) mailboxes show the below logs on dovecot: imap(foo(a)bar.com): Error: read(attachments-connector(zlib(/dovecotdir/mail/ bar.com/foo/mailboxes/INBOX/dbox-Mails/u.26426))) failed: read(/dovecotdir/attach/ bar.com/de/86/de8673894d6fb3f4460e3c26436eefa9a73517fa0f000452f553822367220… b/l]) failed: open(/dovecotdir/attach/ bar.com/de/86/de8673894d6fb3f4460e3c26436eefa9a73517fa0f000452f553822367220…) failed: No such file or directory When that happens, the MUA keeps syncing forever. Now, I need to migrate all mailboxes (again) to another dovecot instance (with no SAS), which works perfectly for new users but when I try to migrate users from my current dovecot server for this new server, I get such errors again, and I can't migrate: 2016-09-29T12:20:50.995934059Z Sep 29 12:20:50 dsync-server(foo(a)bar.com): Error: dsync(cf7d091311eb): read(attachments-connector(zlib(/dovecotdir/mdbox/bar.com/foo/storage/m.1))) failed: read(/dovecotdir/attach/ bar.com/0c/df/0cdf86b1920938fe3a043f87e2ee9e63dda276bd5b9fba687e4a0c63d181c… b/l]) failed: open(/dovecotdir/attach/ bar.com/0c/df/0cdf86b1920938fe3a043f87e2ee9e63dda276bd5b9fba687e4a0c63d181c…) failed: No such file or directory (last sent=mail, last recv=mail_request (EOL)) Is there a way to fix the attachments problem? (I know I can't recover such files, that's Ok) Is there a way to migrate (dsync backup) ignoring such problems? Thanks in advance.

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shared folders
by Scherff 03 Oct '16

03 Oct '16

Hi, i am stuck. Try to install shared folders - dovecot is running fine. ACL is working. But i can't get running the shared folders. Maybe someone can help. This are the relevant conf. I think i have some mistake there - perhaps in location - changed try and error - stuck: mail_home = /var/vmail/mailboxes/%d/%n mail_location = maildir:~/mail:LAYOUT=fs namespace { hidden = no ignore_on_failure = no list = children location = maildir:%%h/mail:INDEX=%h/mail/shared/%%u:CONTROL=%h/mail/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { inbox = yes location = mailbox Archives { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Notes { auto = subscribe } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } plugin { # global acl - prevent expunche for some folder acl = vfile:/var/vmail/dovecot-acl acl_shared_dict = file:/var/vmail/db/shared-mailboxes.db } protocol imap { imap_idle_notify_interval = 15 mins mail_max_userip_connections = 30 mail_plugins = " acl imap_acl" } protocol lmtp { mail_plugins = " acl" } Need some hint. Thanks Alfred

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Shared folder in a sharded cluster setup
by Peer Heinlein 03 Oct '16

03 Oct '16

Hi! With Dovecot Director and Proxy or the new (great!) TAG-feature from Dovecot it's easy to set up a shared IMAP-Cluster with individual local filesystems. But I'm unsure if it's possible to build a setup where shared mailboxes still can work. If user A is on Cluster (1) and user B is on (2), and Cluster (1) does not have access to the mail-home from B on (2), then user A can not reach the shared folders provided from User B on (2). I hope that there is a kind of backend-proxy-mechanism, so that the imap process of A on (1) can imap-proxy the requests for the shared folder to a node from cluster shard (2). And: To be exact, the imap process on (1) should forward the request to cluster (2) by the director system to make sure, that the connection will terminate on the right active backend of User B. This sounds like a special problem if local filesystems with mdbox are used and I now the great features of using Dovecot on Object Store, where every node can check out all mail-locations from all users. But especially on obox-systems it is very important that requests for a user are always terminated on the same backend. So how can shared folders work there?! Node (1) can not checkout the shared folders from User B if his obox storage is already active on another host (2)! Peer -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

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Requiring client certificate on only one interface
by Braden Thomas 02 Oct '16

02 Oct '16

Hi, I'm trying to require client certificates on only one interface. I'm running dovecot 2.1.7. There have been a couple of recent threads about this kind of configuration: http://dovecot.org/list/dovecot/2016-August/105244.html (Aug 2016) http://www.dovecot.org/list/dovecot/2016-February/103067.html (Feb 2016) However, these threads recommend an approach that no longer works. Specifically, the "-l" or "-P" arguments to imap-login no longer work. Is there currently a recommended way to configure dovecot like this? Braden

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Re: Bug: Shared Mailbox - Case Sensitivity
by Aki Tuomi 01 Oct '16

01 Oct '16

Can you provide doveconf -n? ---Aki TuomiDovecot oy -------- Original message --------From: Leander Schäfer <info(a)netocean.de> Date: 01/10/2016 03:41 (GMT+02:00) To: Aki Tuomi <aki.tuomi(a)dovecot.fi>, Dovecot Mailing List <dovecot(a)dovecot.org>, Timo Sirainen <tss(a)iki.fi> Subject: Re: Bug: Shared Mailbox - Case Sensitivity Am I missing something, or might this be a bug as it seems to me? Am 16.09.16 um 14:21 schrieb Leander Schäfer: > Hi Aki, > > > Thanks for your advice. Yes, I'm aware of this. Yet lowercasing should > be the default since Dovecot 2.1.x., isn't it? Yet I wouldn't know > where exactly to implement this %L, since the ACLs are set through > IMAP commands through the users mailclient like Thunderbird. So in > other words, the email address to whom the user want to grant ACLs > provided by the user's mailclient, has nothing to do with my auth > backend where e.g. %u => %Lu would apply. PLease correct me if I'm > wrong here. > > > It clearly looks like a bug of the internal processing of the > "dovecot-acl-list" files. It simply lacks on a lowercase enforcement > in the code, like it already seems to do for the "dovecot-acl" file. > > > Best regards > > Leander Schäfer > > > > Am 16.09.16 um 12:53 schrieb Aki Tuomi: >> >> On 16.09.2016 12:54, Leander Schäfer wrote: >>> Hi, >>> >>> unfortunately I found a bug in Dovecot's ACL handling for shared >>> mailboxes. It turns out Dovecot doesn't enforce lower casing the >>> privileged username to whom the mailbox should be shared to. This >>> results in a invalid configuration. Users get confused, since they >>> passed on a valid email address in their ACL setup. >>> >>> /usr/local/www/default/mail/test(a)mydomain.localdomain/maildir/.Spam/dovecot-acl >>> >>> >>> user=leander(a)mydomain.localdomain eilrwts >>> ^^ works >>> >>> /usr/local/www/default/mail/leander(a)mydomain.localdomain/maildir/dovecot-acl >>> >>> >>> user=test(a)mydomain.localdomain eilrwts >>> ^^ works >>> >>> /usr/local/www/default/mail/test(a)mydomain.localdomain/maildir/.Drafts/dovecot-acl >>> >>> >>> user=Leander(a)MyDomain.LocalDomain eilrwts >>> ^^ Doesn't work >>> >>> Best regards >>> Leander Schäfer >> Hi! Did you know you can use %Lu instead of %u to force lowercasing? >> >> Aki

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Re: NFSv4 and Maildir
by Joseph Tam 01 Oct '16

01 Oct '16

> we have a setup with (CentOS 6) Director+Dovecot, Maildir as storage on > NetApp NFS v3. Every time I try to switch to NFS v4 I found issue with > lock (and others). So for me NFSv4 with Maildir is "unstable" or need a > fine tuning that I don't know. I found the same thing, and turning off write delegation seemed to have solved the problem. I still don't know why, though. Joseph Tam <jtam.home(a)gmail.com>

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Bug: Shared Mailbox - Case Sensitivity
by Leander Schäfer 01 Oct '16

01 Oct '16

Hi, unfortunately I found a bug in Dovecot's ACL handling for shared mailboxes. It turns out Dovecot doesn't enforce lower casing the privileged username to whom the mailbox should be shared to. This results in a invalid configuration. Users get confused, since they passed on a valid email address in their ACL setup. /usr/local/www/default/mail/test(a)mydomain.localdomain/maildir/.Spam/dovecot-acl user=leander(a)mydomain.localdomain eilrwts ^^ works /usr/local/www/default/mail/leander(a)mydomain.localdomain/maildir/dovecot-acl user=test(a)mydomain.localdomain eilrwts ^^ works /usr/local/www/default/mail/test(a)mydomain.localdomain/maildir/.Drafts/dovecot-acl user=Leander(a)MyDomain.LocalDomain eilrwts ^^ Doesn't work Best regards Leander Schäfer

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acl_group not working not working correctly
by Leander Schäfer 01 Oct '16

01 Oct '16

Hi, I'm trying to setup group based ACLs coming from OpenLDAP. My setup doesn't require a POSIX Group match. In the Dovecot configuration file I have this: "user_attrs = [...], mailAclGroups=acl_groups" as well as "acl = vfile:/usr/local/etc/dovecot/global-acls:cache_secs=300". The user has "public" in the LDAP attribute "mailAclGroups". It seems to get everything right. I checked with doveadm - and I see public ist listed as expected: cat /var/log/debug.log [...] Sep 16 23:39:04 WM-01 dovecot: auth: Debug: client passdb out: OK 1 user=leander(a)mydomain.localdomain acl_groups=public [...] cat /usr/local/etc/dovecot/global-acls INBOX owner lrwstipekxa Drafts owner lrwstipeka Sent owner lrwstipeka Spam owner lrwstipeka Trash owner lrwstipeka Public authenticated l Public group-override=public lrwstipekx Public/* group-override=public lrwstipekx doveadm mailbox list -u leander(a)mydomain.localdomain Drafts Sent Trash Spam Shared Public Public/Service Center Shared/test(a)mydomain.localdomain Shared/test(a)mydomain.localdomain/Drafts Shared/test(a)mydomain.localdomain/Sent Shared/test(a)mydomain.localdomain/Trash Shared/test(a)mydomain.localdomain/Spam INBOX But here comes the strange thing: telnet equal to Thunderbird: . LIST "" "*" * LIST (\HasNoChildren \Drafts) "/" Drafts * LIST (\HasNoChildren \Sent) "/" Sent * LIST (\HasNoChildren \Trash) "/" Trash * LIST (\HasNoChildren \Junk) "/" Spam * LIST (\Noselect \HasChildren) "/" Shared * LIST (\HasChildren) "/" Shared/test(a)mydomain.localdomain * LIST (\HasNoChildren) "/" Shared/test(a)mydomain.localdomain/Drafts * LIST (\HasNoChildren) "/" Shared/test(a)mydomain.localdomain/Sent * LIST (\HasNoChildren) "/" Shared/test(a)mydomain.localdomain/Trash * LIST (\HasNoChildren) "/" Shared/test(a)mydomain.localdomain/Spam * LIST (\HasNoChildren) "/" INBOX . OK List completed (0.000 + 0.000 + 0.092 secs). Public and Public/* shoul be listed as well, but it isn't. Any idea why it is behaving like this? Thanks Best regards Leander Schäfer

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[patch] Improved error checking for the dovecot-antispam-plugin
by Robert Munteanu 30 Sep '16

30 Sep '16

Hi, Hopefully this is the right channel for such a patch. I have a minor enhancement to submit for the antispam plugin http://hg.dovecot.org/dovecot-antispam-plugin It adds minimal error checking for the sendmail_binary, otherwise the reported error in case of a missing binary or one with missing permissions is generic and not useful. Thanks, Robert -- http://robert.muntea.nu/

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NFSv4 and Maildir
by Robert Blayzor 30 Sep '16

30 Sep '16

Recently moving to newer storage platforms for mailbox storage so looking at moving mounts from NFSv3 with lots of issues with locking and caching to NFSv4. There seems to be a lot of benefits to v4 along with some other new features, namely “delegation”. So the question boils down to, to delegate or not delegate on Maildir storage. There may be many reasons based on actual platform why to do (or not to do this), but I want to get the general opinion from others that may have more experience with this. Our setup is several FreeBSD 10.x clients running Dovecot/Exim, NetApp NFS mail storage (probably moving to TrueNAS) and using F5 load balancers for client side connections/SSL offload. From what I’ve found (and what i’ve read in the RFC) is that delegation seems to work best when there is NOT a lot of file contention from clients accessing the same files. I realize that in some situations many people are using director to try and keep users on the same client; in our case we’re doing it with F5 iRules. The F5 iRules work great for POP3 and IMAP session persistence, but unfortunately that doesn’t work for SMTP and Dovecot LDA, so we still have possible race conditions from the MTA’s delivering into “INBOX”. (mostly dovecot indexes updating at the same time). So the big question is, who is using Dovecot with maildirs with NFSv4 mounts. What has your experience been? Are you using delegation? By choice and why did you come to that decision. I’m drawing up the conclusion that if you can *mostly* control client control to specific files (ie: directing access to a mailbox to come from one client), then delegation might be ok. However, if you’re not using director and have several NFS mail clients racing to access mailboxes, then delegation might turn into chaos. Your comments welcome and appreciated. -- Robert inoc.net!rblayzor XMPP: rblayzor.AT.inoc.net PGP Key: 78BEDCE1 @ pgp.mit.edu

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Re: Dovecot 2.2.25 fails on SSL
by Andreas M. Kirchwitz 30 Sep '16

30 Sep '16

Joseph Tam <jtam.home(a)gmail.com> wrote: >>> OK, the origin of your problem becomes clearer. You can hardcode these >>> paths into the executables by doing something like >>> >>> env CFLAGS='-I/my'ssl/include' \ >>> LDFLAGS='-L/your/ssl/lib -Wl,-rpath,/my/ssl/lib' \ >>> configure ... >> >> Based on your mail I've tried CFLAGS/LDFLAGS again, and >> now Dovecot didn't even compile any longer. > > I don't use the same OS as you, but what errors dis you get? To be exact here, it's not the compiler but the linker failing (of course, the whole problem is about the linking process). With "--as-needed", the crypto/ssl libraries are not linked at all with the object files. I don't quite understand why it doesn't fall back to the system crypto/ssl libraries because they are in the default pathes with all other libraries. (That's basically what most other software packages do if my custom pathes for "-L" "-Wl,-R" somehow get ignored in the building process.) IMHO, the unusual option "--as-needed" should be removed. There seems to be no benefit but it basically keeps Dovecot to be linked against any custom-specified library. Maybe it's just a problem with RHEL/CentOS 6 and the GCC that ships with it. I'm compiling a lot of software myself and link it against my custom OpenSSL. Never had this problem before, otherwise I would have known to specify "-Wl,--no-as-needed" to reverse ld's behavior to the default. Well, at least I've learned something new. :-) Regards, Andreas

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Softlinks
by Chris 29 Sep '16

29 Sep '16

All, I'm using Maildir. Is it possible to move all (or only some) maildirs with softlinks to another partition? - Chris

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Login just at special timeslots / working hours
by Götz Reinicke - IT Koordinator 29 Sep '16

29 Sep '16

Hi, is there a dovecot feature I did not found yet, which can limit the access to the server to special timeslots like working hours? Or is that a serverside / sssd / auth / pam / account feature? Thanks for hints to some helpfull documentation and sugesstions. Regards . Götz

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dovecot is moving messages to spam
by Webert de Souza Lima 28 Sep '16

28 Sep '16

Hi, is there any dovecot rule settings besides X-Spam-Flag header? Can it move messages via IMAP? I have a message that is being moved to spam folder after delivered in the INBOX but it has no X-Spam-Flag and it's not beeing done by the user (I changed his password, suspended his account and made his login impossible). This happens only when certain "FROM" address is present in the body, like the following message (sent via telnet): From:<some.guy(a)some.domain> Subject: Test teste . Dovecot logs: Sep 28 13:08:00 lmtp(my.user(a)my.domain): Info: OOKlA3rA61dNbwAAkzG9Ng: sieve: msgid=unspecified: stored mail into mailbox 'INBOX' Sep 28 13:08:01 imap(my.user(a)my.domain): Info: copy from INBOX: box=INBOX.Spam, uid=154, msgid=, size=340, subject=Test Sep 28 13:08:01 imap(my.user(a)my.domain): Info: expunge: box=INBOX, uid=18147, msgid=, size=340, subject=Test Thanks in advance

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FreeBSD port
by The Doctor 28 Sep '16

28 Sep '16

Is the person responsible for the FreeBSD port on this list? There might be a minor bug in a small piece of correction code issues in the last 4 days. -- Member - Liberal International This is doctor@@nl2k.ab.ca Ici doctor@@nl2k.ab.ca God,Queen and country!Never Satan President Republic!Beware AntiChrist rising! http://www.fullyfollow.me/rootnl2k Look at Psalms 14 and 53 on Atheism Time for the USA to hold a referendum on its republic and vote to dissolve!!

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