- dovecot - dovecot.org

Any RPMs for aarch64 available?
by Peter Cooper Jr. 04 Dec '20

04 Dec '20

Hey, I really appreciate Dovecot being available with standard repos in repo.dovecot.org. I'm currently using the "CentOS 7" one on Amazon Linux 2 and it works great for x86_64. I'm wondering if there are any plans for also providing arm builds (aarch64) at some point? Or if they're available somewhere else already? I may play around with compiling things myself, but just downloading an official package is generally the easier way to go so I thought it couldn't hurt to ask. Thanks, Peter

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follow up to my mail issues I posted about
by Christy S 03 Dec '20

03 Dec '20

Okay. A few days late, but I've gone through the replies I received from several of you and consolidated responses into one mail. Of course life gets crazy when I need to sit down and work on things. "It seems to me Thunderbird is struggling to write to the Sent mailbox, so disk space, and file permissions are the obvious ones to check. And yes, on the server rather than your local machine, as you're using IMAP" It's definitely not disc space. I wouldn't think an upgrade would change permissions, but it's a place to check. I'm showing my newbieness here but, I'm not even sure what account should have access to those files. I know, it's a miracle I got all this working in the first place. I should have taken notes, but I did so much fiddling with this and that to make it behave that I didn't know what to write down. "Anything interesting in the dovecot logs at the time when you check?" So I looked up dovecot logs on google, and what I'm seeing is that dovecot generally writes to mail logs under /var/log. The stuff I sent in my first email came from mail.err in that folder. The only other file I could find was mail.log. Using tail on that file, I see entries like these. Dec 2 20:53:07 kylesmith-music postfix/smtpd[396853]: warning: unknown[212.70.149.37]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Dec 2 20:53:07 kylesmith-music postfix/smtpd[396853]: disconnect from unknown[212.70.149.37] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4 There are similar entries from a different ip address, but interestingly neither match the ip address of our fiber modem so I have no idea what's going on there. "First, do you have a backup prior to upgrading the server? You may want to refer to that to get a clean idea of how the configuration was set up initially. Sometimes the upgrade process can reset configuration files and its usually easier to work from a known working configuration. " I really wish I did, but I'm not sure how to effectively back up a VPS. "Second, can you describe how you set the mail stack you are using up?" I can tell you it's postfix and dovecot. That's what a lot of articles recommended, so I went with that. We use different devices so I chose to use imap as it interfaces directly with the stored mail on the server. Usually this is good, except now when it breaks. "Its possible the issue is SSL related but its difficult to say. There have been a number of breaks with SSL encryption in recent years which is why the cipher list has been adjusted," SSL is definitely my weakest point of knowledge. I know I had it working smoothly but it was basically following how to stuff. The reason we're using it even for mail has to do with someone in my husband's life who would get in and mess things up if he had the chance, so I'm trying to make sure he doesn't have that chance by locking things down tight. "google can also be out of date I'd recommend using a date filter when using it for checking configurations and limit it only to the last 1-2 years as you will get more relevant information typically." Oh my gosh, that alone would be extremely helpful. The number of seriously outdated articles I had to filter through when I set this up in the first place is just unreal. Mind telling me how to do a date filter? Otherwise, I'll google how to use google, hahaha. "The configuration parameter for the cipher list uses HIGH as a default profile and if I recall correctly that disables lower TLS versions that are susceptible to certain types of attacks. (SSL3,TLS1,TLS1.1,1.2 I think) The dovecot documentation explains what the defaults are for HIGH. The ! prevents using specifica protocols and configuration is usually a chain (processed from left to right until a match is found). DH is the diffie-helman exchange. Usually this file is recalculated on a per server basis to prevent pre-calculation attacks on SSL and usually it must meet a certain key length. DH Groups 1 and 2 are known to be insecure." Okay, that went way over my head, but it sounds like good information to have and study up more on, hopefully after I get the immediate issue solved. If I'm following you correctly at all though I could see that potentially being my issue, hmm. I will for sure see if I can get my hands on that book. "Some quick thoughts here — if the changes you mentioned did not solve the issue, I would definitely comment those back out so you are only troubleshooting one thing at a time." Fair point. I commented out the one about dh high, then hopefully reloaded the configuration, dovecot reload? That done, I tried sending an email from the domain to my gmail using thunderbird. I got the same message, but it did actually send this time. However, when I replied to the test message with my gmail account, it wasn't received by thunderbird. I do see it using the mail app on the server, though. "Next, are you able to send email using any other client?" I can send mail locally on the server from one account to another for sure. I managed it once, at least. Those mail clients seem clunky though so I may not be doing things correctly to test. "Third, try disabling all SSL and see if you are able to send via Thunderbird or really, any client at all…" Is there an easy way to disable ssl for now and then reenable it? That would definitely help narrow this down. "Your DH parameters are too weak. You should generate at least 2048 byte parameters." To be honest, I don't even recall setting up DH parameters. I would guess that probably happened when I was setting up ssl? Again, thank you to each of you for helping with this. I really try not to send stuff like this to mailing lists that are technical in nature, but this is important business mail he's potentially missing and I'm a bit out of my league. First project once this gets fixed will be learning how to back up the server. Christy

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New Version
by Jorge Bastos 02 Dec '20

02 Dec '20

Howdy, Sorry the question, I havent seen any update on github since July, is everything ok with Dovecot? Thanks,

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Re: Re: Dovecot+Solr+Tika segmentation fault
by Manuel Josupeit-Walter 02 Dec '20

02 Dec '20

>> A fix was posted on this list which seems to avoid segfaults when >> using solr+tika. I reposted it not long ago in response to another >> question. Before exploring the other segfaults it would be worthwhile >> getting that fix. If other segfaults continue then I suggest posting >> the logging from Dovecot >> > > https://github.com/dovecot/core/commit/043d111cea78533cf22d3bfe0872c8376d84… > (DOV-4090) > > Scheduled for 2.3.13. Meanwhile, I also found the fix from October. I can confirm that the issue occurred on 2.3.11.3 only. I switched to the previous version (which is pretty easy thanks to Docker) and the issue disappeared. All messages were indexed properly afterwards. I applied the fix and will observe it for the next couple of days. The assertions have been misplaced anyway from my viewpoint because the asserted fields (or properties or whatever, I don't know how they're called in C) are not accessed in every case. I am happy that this is scheduled for 2.3.13. Although, I hope that the payload_input or payload_output won't be NULL when payload_finished is true. :) Thanks a lot to you guys for all the effort. I would not be able to resolve this on my own without your help. Best, Manuel

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Error: Mailbox INBOX: Sync failed
by Jos Chrispijn 02 Dec '20

02 Dec '20

Just saw in my logfile this line appeared: imap(xxxxxx)<56614><CMMJw9i0aoBSsH9H>: Error: Mailbox INBOX: Sync failed for mbox: Expunged message reappeared to mailbox (UID 174550 < 174552, seq=11, idx_msgs=9) Looks like messages' UIDs are mixed up? I thought that if Dovecot sees broken X-UID headers for "new" messages, they're silently fixed? Can you tell how I can correct this error/warning? Thanks! BR, Jos

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Dovecot+Solr+Tika segmentation fault
by Manuel Josupeit-Walter 02 Dec '20

02 Dec '20

3 2

Bug report: invalid \HasNoChildren in response when asterisk is used in the name
by Merijn Schering 01 Dec '20

01 Dec '20

Hi, I'm using dovecot 2.3.4.1 (f79e8e7e4). I have created a folder called "Test with *". Now when I do a command: A3 LIST "" "%" RETURN (CHILDREN STATUS (MESSAGES UNSEEN)) It responds: * STATUS Test with * ( MESSAGES 0 UNSEEN 0 ) * LIST ( \HasNoChildren \UnMarked ) / Spam But it actually has children! This only happens when I use a * character in the name. I hope you can fix this some day. Thanks! Best regards, Merijn Schering Intermesh https://www.group-office.com https://twitter.com/GroupOffice

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doveadm crash on import
by Ralf Hildebrandt 01 Dec '20

01 Dec '20

% doveadm import -u restore(a)backup.invalid mdbox:/home/copymail2/mdbox '' mailbox INBOX header Reply-To gmail.com results in: doveadm(restore(a)backup.invalid): Panic: fcntl(/home/copymail2/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.log, write-lock, F_SETLKW) locking failed: Resource deadlock avoided (WRITE lock held by pid 37462) doveadm(restore(a)backup.invalid): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7fb131662d22] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fb131662e3e] -> /usr/lib/dovecot/libdovecot.so.0(+0xed75e) [0x7fb13166d75e] -> /usr/lib/dovecot/libdovecot.so.0(+0xed7a1) [0x7fb13166d7a1] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fb1315c2beb] -> /usr/lib/dovecot/libdovecot.so.0(+0xf2932) [0x7fb131672932] -> /usr/lib/dovecot/libdovecot.so.0(file_wait_lock_error+0x26) [0x7fb131672966] -> /usr/lib/dovecot/libdovecot.so.0(file_wait_lock+0x20) [0x7fb131672a00] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_transaction_log_file_lock+0x90)[0x7fb131a28050] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_transaction_log_lock_head+0x3d)[0x7fb131a2d4dd] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_transaction_log_append_begin+0x3e)[0x7fb131a26a8e] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xf52f2) [0x7fb131a202f2] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_transaction_commit_full+0x76)[0x7fb131a20826] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_transaction_commit+0x1c)[0x7fb131a208bc] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xdd619) [0x7fb131a08619] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_cache_add+0x214) [0x7fb131a08f24] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_parse_header+0x5a5) [0x7fb1319eaef5] -> /usr/lib/dovecot/libdovecot.so.0(+0xc5b13) [0x7fb131645b13] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_memarea+0x74) [0x7fb13167ab14] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x29) [0x7fb13167ae49] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7fb13167b7bd] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header_next+0x68) [0x7fb13164c288] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header+0x4f) [0x7fb13164cc5f] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xc9f61) [0x7fb1319f4f61] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xcb214) [0x7fb1319f6214] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_search_next_nonblock+0x10d)[0x7fb1319f69ed] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonblock+0x22)[0x7fb131978df2] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next+0x3d)[0x7fb131978e5d] -> doveadm(+0x31c14) [0x557ac63f1c14] -> doveadm(+0x2c518) [0x557ac63ec518] -- 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 | https://www.charite.de

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director_username_hash = %d and doveadm director map
by Ralf Becker 30 Nov '20

30 Nov '20

Our directors hash by domain (director_username_hash = %d), as some of our users share folders with other users of the same domain. We now started using director tags to map domains to their backends. Unfortunately doveadm director map seems no to work with director_username_hash = %d user hash mail server ip expire time <unknown> 432784257 10.44.88.1 2020-11-23 13:10:55 <unknown> 4244233328 10.44.88.1 2020-11-23 13:13:55 <unknown> 1913982503 10.44.88.1 2020-11-23 13:15:40 How can I check to which backend / IP a domain is maped, aka how is that hash calculated? doveadm director move seems also not to do anything meaningful for %d, or at least I have not found out how to use it to move a domain to a different backend. Hoping for some insight :) Ralf -- Ralf Becker EGroupware GmbH [www.egroupware.org] Handelsregister HRB Kaiserslautern 3587 Geschäftsführer Birgit und Ralf Becker Leibnizstr. 17, 67663 Kaiserslautern, Germany Telefon +49 631 31657-0

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Dovecot cannot access mailcrypt decryption key
by Daniel Niewerth 30 Nov '20

30 Nov '20

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A probably dumb question, but I'm stumped
by Christy S 30 Nov '20

30 Nov '20

Hi folks, I'm stumped on an error we're getting in dovecot after upgrading ubuntu. I will say up front that I'm far from a linux expert. I'm helping my husband by managing a virtual private server to handle his domain, including its email. We set this up two years ago and once I finally got the mail working, it's been humming along just fine since, until two days ago when I performed the ubuntu upgrade. Now, when we try to send mail through his domain thunderbird gives this error: Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. Note that it says this, but the mail isn't actually sent at all. We are using SSL and have been since the beginning which might be part of our problem, but I'm not positive. A google search suggested adding two lines to the 10-ssl.conf file. ssl_dh = </usr/share/dovecot/dh.pem ssl_cipher_list = HIGH:!DH:!aNULL I did both of these things and restarted the server completely, but no luck. looking in /var/log/mail.err I see this. Nov 29 14:08:56 kylesmith-music dovecot: imap-login: Error: Failed to initialize SSL server context: Can't load SSL cert ificate: error:140AB18F:SSL routines:SSL_CTX_use_certificate:ee key too small: user=<>, rip=xxx.xxx.xxx.xxx, lip=xxx.xxx.xxx.xxx, session=<t4qrdkS1kPNLFhL4> What's interesting is that last line only showed up after I added the two lines to the config file. My guess is I need to do something with SSL, update it maybe? But I don't want to go fiddling around purely on a guess and potentially break things even more. So, any of you much more linux familiar types want to point me in the right direction? Thanks! Christy

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Repo for ubuntu focal 20.04 LTS
by Sébastien Riccio 27 Nov '20

27 Nov '20

Hello Dovecot, As the new ubuntu LTS 20.04 seems to be out, I would like to ask if there are any plans to add a repo like it already exists for 18.04 LTS. We planned to upgrade our 18.04 LTS boxes to 20.04. It has it’s own dovecot packages (2.3.7 at the time of writing this), but I would prefer we use your repositories like we do with 18.04. Kind regards, Sébastien

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Panic: file message-parser.c
by Urban Loesch 27 Nov '20

27 Nov '20

Hi, I'm running Dovecot 2.3.11 from Dovet Repository on Debian 9.13. I get the following error when some of our users are doing searches in mailboxes. My error log: ... Nov 25 17:32:13 dcot-mydomain-1 dovecot: imap-login: ID sent: x-session-id=Dh04+PC0+O9t+MsP, x-originating-ip=109.248.203.15, x-originating-port=61432, x-connected-ip=10.10.10.10206, x-connected-port=993, x-proxy-ttl=4: user=<>, rip=109.248.203.15, lip=10.10.10.10206, secured, session=<Dh04+PC0+O9t+MsP> Nov 25 17:32:13 dcot-mydomain-1 dovecot: imap-login: Login: user=<user(a)domain.com>, method=PLAIN, rip=109.248.203.15, lip=10.10.10.10206, mpid=110860, secured, session=<Dh04+PC0+O9t+MsP> Nov 25 17:32:18 dcot-mydomain-1 dovecot: imap(user(a)domain.com pid:110860 session:<Dh04+PC0+O9t+MsP>): Panic: file message-parser.c: line 174 (message_part_finish): assertion failed: (ctx->nested_parts_count > 0) Nov 25 17:32:18 dcot-mydomain-1 dovecot: imap(user(a)domain.com pid:110860 session:<Dh04+PC0+O9t+MsP>): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7fd61a26c0e2] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fd61a26c1ee] -> /usr/lib/dovecot/libdovecot.so.0(+0xe9c81) [0x7fd61a276c81] -> /usr/lib/dovecot/libdovecot.so.0(+0xe9d21) [0x7fd61a276d21] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fd61a1cbfa4] -> /usr/lib/dovecot/libdovecot.so.0(+0xc990e) [0x7fd61a25690e] -> /usr/lib/dovecot/libdovecot.so.0(message_parser_parse_next_block+0xdc) [0x7fd61a257f8c] -> /usr/lib/dovecot/libdovecot.so.0(message_search_msg+0xa0) [0x7fd61a25a810] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xc4c5f) [0x7fd61a5fbc5f] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_search_args_foreach+0x45) [0x7fd61a577575] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xc5a5e) [0x7fd61a5fca5e] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xc6f63) [0x7fd61a5fdf63] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_search_next_nonblock+0x10c) [0x7fd61a5fe68c] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonblock+0x22) [0x7fd61a580fb2] -> dovecot/imap(+0x257f0) [0x55be0929f7f0] -> dovecot/imap(command_exec+0x64) [0x55be09297ff4] -> dovecot/imap(+0x24a32) [0x55be0929ea32] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handle_timeouts+0x137) [0x7fd61a28f707] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xc1) [0x7fd61a291211] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x59) [0x7fd61a28fa69] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fd61a28fc98] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fd61a1fd2f3] -> dovecot/imap(main+0x338) [0x55be09287f68] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7fd619e0e2e1] -> dovecot/imap(_start+0x2a) [0x55be0928816a] Nov 25 17:32:18 dcot-mydomain-1 dovecot: imap(user(a)domain.com pid:110860 session:<Dh04+PC0+O9t+MsP>): Fatal: master: service(imap): child 110860 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) ... I searched the archives and found this patch which seems to fix it: https://github.com/dovecot/core/commit/a668d767a710ca18ab6e7177d8e8be22a6b0… Have you planned to release new Debian 9 packages in dovecot repository where this patch will be applied? My current Dovecot version is: ii dovecot-core 2:2.3.11.3-3+debian9 amd64 secure POP3/IMAP server - core files ii dovecot-dbg 2:2.3.11.3-3+debian9 amd64 secure POP3/IMAP server - debug symbols ii dovecot-imapd 2:2.3.11.3-3+debian9 amd64 secure POP3/IMAP server - IMAP daemon ii dovecot-lmtpd 2:2.3.11.3-3+debian9 amd64 secure POP3/IMAP server - LMTP server ii dovecot-managesieved 2:2.3.11.3-3+debian9 amd64 secure POP3/IMAP server - ManageSieve server ii dovecot-mysql 2:2.3.11.3-3+debian9 amd64 secure POP3/IMAP server - MySQL support ii dovecot-pop3d 2:2.3.11.3-3+debian9 amd64 secure POP3/IMAP server - POP3 daemon ii dovecot-sieve 2:2.3.11.3-3+debian9 amd64 secure POP3/IMAP server - Sieve filters support ... Many thanks Urban

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Dovecot alternatives with good i18n support?
by David Bürgin 26 Nov '20

26 Nov '20

Hello! I’m interested in exploring alternative IMAP servers that have good support for internationalised email, such as support for SMTPUTF8, IDN mail domains, Unicode local-part, etc. etc. If you used to use Dovecot, and found an alternative that does such things well, I would very much like to hear it. Thank you, -- David

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Dovecot+Samba AD - authentication failure
by Odhiambo Washington 26 Nov '20

26 Nov '20

Hi, I have setup samba4 as AD and hoping to have dovecot authenticate users against it. I am facing challenges though and I am unable to figure it out. I could do with a third eye to help me spot what is wrong. root@adc0:/etc# doveadm auth test -x service=imap odhiambo(a)newideatest.local Password: passdb: odhiambo(a)newideatest.local auth failed extra fields: temp Warning: auth-client: conn unix:/var/run/dovecot/auth-client: Auth connection closed with 1 pending requests (max 0 secs, pid=10537, EOF) Fatal: Couldn't connect to auth socket A test against IMAP gives the following debug information: Nov 22 14:31:01 auth: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth Nov 22 14:31:01 auth: Debug: Module loaded: /usr/lib/dovecot/modules/auth/lib20_auth_var_expand_crypt.so Nov 22 14:31:01 auth: Debug: Module loaded: /usr/lib/dovecot/modules/auth/libdriver_mysql.so Nov 22 14:31:01 auth: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth Nov 22 14:31:01 auth: Debug: Module loaded: /usr/lib/dovecot/modules/auth/libauthdb_ldap.so Nov 22 14:31:01 auth: Debug: Read auth token secret from /var/run/dovecot/auth-token-secret.dat Nov 22 14:31:01 auth: Debug: auth client connected (pid=10979) Nov 22 14:31:08 auth: Debug: client in: AUTH 1 PLAIN service=imap secured session=uPLvabC0RIh/AAAB lip=127.0.0.1 rip=127.0.0.1 lport=143 rport=34884 resp=<hidden> Nov 22 14:31:08 auth: Debug: ldap(odhiambo(a)newideatest.local,127.0.0.1,<uPLvabC0RIh/AAAB>): Performing passdb lookup Nov 22 14:31:08 auth: Debug: ldap(odhiambo(a)newideatest.local,127.0.0.1,<uPLvabC0RIh/AAAB>): bind search: base=cn=Users,dc=NEWIDEATEST,dc=LOCAL filter=(&(objectClass=user)(!(userAccountControl:1.2.840.113556.1.4.803:=2))(sAMAccountName=odhiambo@newideatest.local )) Nov 22 14:31:08 auth: Debug: ldap(odhiambo(a)newideatest.local,127.0.0.1,<uPLvabC0RIh/AAAB>): no fields returned by the server *< ====================* Nov 22 14:31:08 auth: Debug: ldap(odhiambo(a)newideatest.local,127.0.0.1,<uPLvabC0RIh/AAAB>): Finished passdb lookup Nov 22 14:31:08 auth: Debug: auth(odhiambo(a)newideatest.local,127.0.0.1,<uPLvabC0RIh/AAAB>): Auth request finished Nov 22 14:31:10 auth: Debug: client passdb out: FAIL 1 user=odhiambo(a)newideatest.local info.log: Nov 22 14:31:08 auth: Info: ldap(odhiambo(a)newideatest.local ,127.0.0.1,<uPLvabC0RIh/AAAB>):* unknown user* (given password: XXXXXXX) Nov 22 14:31:15 imap-login: Info: Aborted login (auth failed, 1 attempts in 7 secs): user=<odhiambo(a)newideatest.local>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured, session=<uPLvabC0RIh/AAAB> Here is my doveconf -n: https://paste.ubuntu.com/p/SPmrxZxHPx/ My dovecot-ldap.cont.ext: uris = ldap://localhost/ dn = "dovecot(a)newideatest.local" dnpass = "XXXXXXXX" sasl_bind = no tls = no ldap_version = 3 deref = never scope = subtree base = cn=Users,dc=NEWIDEATEST,dc=LOCAL auth_bind = yes user_filter = (&(objectClass=user)(!(userAccountControl:1.2.840.113556.1.4.803:=2))(|(mail=%u)(sAMAccountName=%u)(otherMailbox=%u))) user_attrs = sAMAccountName=user,userPassword=password,=mail=maildir:/home/%n/Maildir/ pass_filter = (&(objectClass=user)(!(userAccountControl:1.2.840.113556.1.4.803:=2))(sAMAccountName=%u)) pass_attrs = sAMAccountName=user,userPassword=password The use exists in the database: *root@adc0:/var/log/dovecot# samba-tool user show odhiambo* ldb_wrap open of secrets.ldb dn: CN=Odhiambo Washington,CN=Users,DC=newideatest,DC=local objectClass: top objectClass: person objectClass: organizationalPerson objectClass: user cn: Odhiambo Washington sn: Washington givenName: Odhiambo instanceType: 4 whenCreated: 20201120101420.0Z displayName: Odhiambo Washington uSNCreated: 4086 name: Odhiambo Washington objectGUID: e6969596-8b28-41af-b5d8-cea63cc97f98 badPwdCount: 0 codePage: 0 countryCode: 0 badPasswordTime: 0 lastLogoff: 0 lastLogon: 0 primaryGroupID: 513 objectSid: S-1-5-21-701866827-3355127779-3787685610-1106 accountExpires: 9223372036854775807 logonCount: 0 sAMAccountName: odhiambo sAMAccountType: 805306368 userPrincipalName: odhiambo(a)newideatest.local objectCategory: CN=Person,CN=Schema,CN=Configuration,DC=newideatest,DC=local mail: odhiambo(a)newideatest.local loginShell: /bin/bash userAccountControl: 512 pwdLastSet: 132505181852397220 whenChanged: 20201122112945.0Z uSNChanged: 4104 distinguishedName: CN=Odhiambo Washington,CN=Users,DC=newideatest,DC=local -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 "Oh, the cruft.", grep ^[^#] :-)

2 3

Panic: file istream-seekable.c: line 226
by Eric Mauger 26 Nov '20

26 Nov '20

Hi, I have a lot of Panic in my logs. They happen almost every day and never on the same user. When it happens, the mail is not distributed (it's always lda). I discovered it because my Sympa server had a lot of users in error. The last error (below) was a local user sending a mail to 10 users : 3 of them never get the email. I've looked into my logs and discovered it started after the upgrade from 2.2.27 to 2.3.4 in february. I'm on Debian. This week, I installed the dovecot repo and upgraded to the very last and same thing. The error below happened after the latest upgrade. An example : Nov 25 11:33:07 mx.igf.cnrs.fr dovecot: lda(username_hidden)<4653><A3S4MuIyvl8tEgAAmSH/vg>: Panic: file istream-seekable.c: line 230 (read_from_buffer): assertion failed: (*ret_r > 0) Nov 25 11:33:07 mx.igf.cnrs.fr dovecot: lda(sebastien.granier)<4653><A3S4MuIyvl8tEgAAmSH/vg>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x3d) [0x7f49a56d4eed] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f49a56d500e] -> /usr/lib/dovecot/libdovecot.so.0(+0xf465b) [0x7f49a56de65b] -> /usr/lib/dovecot/libdovecot.so.0(+0xf46c1) [0x7f49a56de6c1] -> /usr/lib/dovecot/libdovecot.so.0(+0x514a6) [0x7f49a563b4a6] -> /usr/lib/dovecot/libdovecot.so.0(+0x53cfb) [0x7f49a563dcfb] -> /usr/lib/dovecot/libdovecot.so.0(+0x1074a1) [0x7f49a56f14a1] -> /usr/lib/dovecot/libdovecot.so.0(+0x1078f6) [0x7f49a56f18f6] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_stat+0x34) [0x7f49a56eaab4] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xb1396) [0x7f49a5852396] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xb1472) [0x7f49a5852472] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_get_physical_size+0x38) [0x7f49a57ef0c8] -> /usr/lib/dovecot/libdovecot-lda.so.0(+0x4005) [0x7f49a5907005] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver_init+0x141) [0x7f49a5908101] -> /usr/lib/dovecot/deliver(main+0x879) [0x562d1c0e6f99] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb) [0x7f49a543e09b] -> /usr/lib/dovecot/deliver(_start+0x2a) [0x562d1c0e76ea] My configuration : dovecot -n # 2.3.11.3 (502c39af9): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.11 (6c69c917) # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.6 # Hostname: mx.igf.cnrs.fr auth_username_format = disable_plaintext_auth = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_location = maildir:~/maildir mail_plugins = fts mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Ads { auto = subscribe } 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 = separator = . type = private } passdb { driver = pam } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve sieve_after = /etc/dovecot/sieve.d } protocols = " imap sieve pop3 sieve" service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service imap-login { process_min_avail = 16 service_count = 0 } service managesieve-login { inet_listener sieve { port = 4190 } } service stats { unix_listener stats-reader { group = dovecot mode = 0666 user = root } unix_listener stats-writer { group = dovecot mode = 0666 user = root } } ssl_cert = </etc/dovecot/ssl/certs/mx_igf_cnrs_fr_with_CA.crt ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it syslog_facility = local2 userdb { driver = passwd } verbose_proctitle = yes protocol lda { mail_plugins = fts sieve syslog_facility = local2 } Thanks, -- Eric Mauger | Administrateur système et réseau IGF UMR5203 | https://www.igf.cnrs.fr

1 0

Dovecot+Solr+Tika segmentation fault
by Manuel Josupeit-Walter 25 Nov '20

25 Nov '20

Hi all, I am running a mail server for family and friends based on Dovecot and Docker. Today I made a weird observation which I must have overlooked for a long time so far because they logs were written to the journal. However, I am usually only investigating the Docker logs. It seems that some e-mail indexing leads to segfaults and it seems to be related only with Solr and Tika. I have auto-indexing turned on so sometimes the indexer-worker crashes when moving mails from one folder to the other or searching for mails otherwise. Also, if I try to manually reindex using doveadm index, the doveadm process quits with a segfault. I am always running the most recent Dovecot version, in this case 2.3.11.3, but I am not neccessarily up-to-date with Solr or Tika. I am on Solr Version 7.4 and Tika 1.24.1. On the console I am receiving Tika errors and on the Solr Webinterface I see a couple of Ealry EOFs as well. I am not a Linux expert from a dev perspective, but it seems to me that the client (Dovecot) closes the connection prematurely. Does anyone have a hint? I am happy to provide more information if required. I need to know how to collect them, though. Best, Manuel The following can be found in the journald logs during the attempt to reindex my Sent mailbox with doveadm index: Nov 24 16:59:49 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:49 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name tika[988]: WARN Using fallback font LiberationSans for Helvetica Nov 24 16:59:50 server.name kernel: doveadm[400]: segfault at 0 ip 00007fb9f4fa2b64 sp 00007ffc927694f0 error 4 in libdovecot.so.0.0.0[7fb9f4f58000+db000] Nov 24 16:59:50 server.name kernel: Code: 89 f5 48 8d b8 f0 01 00 00 48 8b 52 08 4c 8b 62 48 e8 90 89 fb ff 48 8b 44 24 08 be 00 20 00 00 4c 89 ef 48 8b 80 10 01 00 00 <4c> 8b 38 e8 64 b2 fb ff 48 8b 44 24 08 4c 89 ef 48 8b b0 10 01 00 Nov 24 16:59:50 server.name tika[988]: INFO tika/ (application/pdf) Nov 24 16:59:50 server.name tika[988]: WARN tika/: Text extraction failed (null) Nov 24 16:59:50 server.name tika[988]: org.apache.tika.exception.TikaException: TIKA-198: Illegal IOException from org.apache.tika.parser.DefaultParser@4dcc5b82 Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:286) Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:143) Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.server.resource.TikaResource.parse(TikaResource.java:409) Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.server.resource.TikaResource$4.write(TikaResource.java:521) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.jaxrs.provider.BinaryDataProvider.writeTo(BinaryDataProvider.java:177) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.jaxrs.utils.JAXRSUtils.writeMessageBody(JAXRSUtils.java:1472) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:249) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.processResponse(JAXRSOutInterceptor.java:122) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.handleMessage(JAXRSOutInterceptor.java:84) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:90) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:267) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.transport.http_jetty.JettyHTTPDestination.doService(JettyHTTPDestination.java:247) Nov 24 16:59:50 server.name tika[988]: at org.apache.cxf.transport.http_jetty.JettyHTTPHandler.handle(JettyHTTPHandler.java:79) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1300) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:190) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1215) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.Server.handle(Server.java:500) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938) Nov 24 16:59:50 server.name tika[988]: at java.lang.Thread.run(Thread.java:748) Nov 24 16:59:50 server.name tika[988]: Caused by: org.eclipse.jetty.io.EofException: Early EOF Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.HttpInput$3.getError(HttpInput.java:1141) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.HttpInput$3.noContent(HttpInput.java:1129) Nov 24 16:59:50 server.name tika[988]: at org.eclipse.jetty.server.HttpInput.read(HttpInput.java:321) Nov 24 16:59:50 server.name tika[988]: at java.io.FilterInputStream.read(FilterInputStream.java:133) Nov 24 16:59:50 server.name tika[988]: at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) Nov 24 16:59:50 server.name tika[988]: at java.io.BufferedInputStream.read1(BufferedInputStream.java:286) Nov 24 16:59:50 server.name tika[988]: at java.io.BufferedInputStream.read(BufferedInputStream.java:345) Nov 24 16:59:50 server.name tika[988]: at java.io.FilterInputStream.read(FilterInputStream.java:107) Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.io.ProxyInputStream.read(ProxyInputStream.java:78) Nov 24 16:59:50 server.name tika[988]: at org.apache.commons.io.input.ProxyInputStream.read(ProxyInputStream.java:78) Nov 24 16:59:50 server.name tika[988]: at org.apache.pdfbox.io.ScratchFile.createBuffer(ScratchFile.java:443) Nov 24 16:59:50 server.name tika[988]: at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1220) Nov 24 16:59:50 server.name tika[988]: at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1196) Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.parser.pdf.PDFParser.getPDDocument(PDFParser.java:190) Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.parser.pdf.PDFParser.parse(PDFParser.java:149) Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) Nov 24 16:59:50 server.name tika[988]: at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) Nov 24 16:59:50 server.name tika[988]: ... 39 more Nov 24 16:59:50 server.name tika[988]: ERROR Problem with writing the data, class org.apache.tika.server.resource.TikaResource$4, ContentType: text/plain

1 0

Dovecot authentication hangs when ldap_start_tls_s() fails for invalid certificate
by sebastiano degan 19 Nov '20

19 Nov '20

On a Debian10 I've installed postfix 3.4.14 and dovecot 2.3.4.1. I've configured multiple passdb sources and I expect that if one fails the other ones are tested. This is usually the case, except when the failure is due to an invalid certificate from the ldap server. In that case all authentication attempts from that moment on will fail. I've trimmed down the configuration as much as possible (see below), and this is the syslog output of my tests: TEST 1 - Everything is configured correctly: No output on syslog TEST 2 - Wrong hostname as a ldap server: Auth attempt 1: Nov 19 11:25:29 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-passdb.conf.ext: ldap_start_tls_s() failed: Can't contact LDAP server Nov 19 11:25:29 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-userdb.conf.ext: ldap_start_tls_s() failed: Can't contact LDAP server Nov 19 11:25:29 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-passdb.conf.ext: ldap_start_tls_s() failed: Can't contact LDAP server Nov 19 11:25:35 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-passdb.conf.ext: ldap_start_tls_s() failed: Can't contact LDAP server Auth attempt 2: Nov 19 11:25:57 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-passdb.conf.ext: ldap_start_tls_s() failed: Can't contact LDAP server Nov 19 11:25:59 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-passdb.conf.ext: ldap_start_tls_s() failed: Can't contact LDAP server Auth attempt 3: Nov 19 11:26:28 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-passdb.conf.ext: ldap_start_tls_s() failed: Can't contact LDAP server Nov 19 11:26:30 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-passdb.conf.ext: ldap_start_tls_s() failed: Can't contact LDAP server TEST 3 - Invalid certificate: Attempt 1: Nov 19 11:21:20 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-passdb.conf.ext: ldap_start_tls_s() failed: Connect error Nov 19 11:21:20 debian dovecot: auth: Error: LDAP /etc/dovecot/dovecot-ldap-userdb.conf.ext: ldap_start_tls_s() failed: Connect error No output on other attempts... CONFIGURATION FILES: ______________________________________________________ auth.conf: auth_mechanisms = plain login passdb { driver = ldap args = /etc/dovecot/dovecot-ldap-passdb.conf.ext } userdb { driver = ldap args = /etc/dovecot/dovecot-ldap-userdb.conf.ext default_fields = uid=vmail gid=vmail home=/var/mail/vmail/%d/%n } ______________________________________________________ ______________________________________________________ dovecot-ldap-passdb.conf.ext: tls = yes hosts = DC1.fv.lan base = ou=Frigoveneta,dc=fv,dc=lan auth_bind = yes auth_bind_userdn = %u ______________________________________________________ ______________________________________________________ dovecot-ldap-userdb.conf.ext: tls = yes hosts = DC1.fv.lan base = ou=Frigoveneta,dc=fv,dc=lan dn = ##removed## dnpass = ##removed## user_filter = (&(userPrincipalName=%u)) ______________________________________________________

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RE: about imap-login: Error and imap: Error after Version-UP
by 'Aki Tuomi' 18 Nov '20

18 Nov '20

Hi.. there is supposed to be only at most one (1) stats process. Having multiple stats processes breaks stats. Aki > On 18/11/2020 01:48 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp> wrote: > > > Aki-san > > Last night We adjusted the "process_limit" in the stats service to get rid of the error. > > "client_limit" is in the blank (default) state. > > Thank you very much. > > morikawa > -----Original Message----- > From: 'Aki Tuomi' [mailto:aki.tuomi@open-xchange.com] > Sent: Tuesday, November 17, 2020 2:35 PM > To: 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp>; dovecot(a)dovecot.org > Subject: RE: about imap-login: Error and imap: Error after Version-UP > > You need to configure stats service client limit and imap service client limit. Those are different services than imap-login service. > > Aki > > > On 17/11/2020 01:28 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp> wrote: > > > > > > Aki-san > > > > I have already seen that page. > > Is the setting method wrong? > > > > Is there any other tuning point? > > > > morikawa > > -----Original Message----- > > From: Aki Tuomi [mailto:aki.tuomi@open-xchange.com] > > Sent: Monday, November 16, 2020 8:52 PM > > To: 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp>; dovecot(a)dovecot.org > > Subject: Re: about imap-login: Error and imap: Error after Version-UP > > > > > > > On 16/11/2020 13:44 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp> wrote: > > > > > > > > > We have upgraded dovecot from 2.0.9 (centos6) to 2.2.36 (centos8). > > > > > > If more than 1000 users log in, the following error will occur. > > > ------------------------- > > > Nov 16 11:33:00 xxxxxxxx dovecot[1361]: imap-login: Error: master(imap): > > > net_connect_unix(imap) failed: Resource temporarily unavailable - > > > http://wiki2.dovecot.org/SocketUnavailable (client-pid=1362, > > > client-id=129834, rip=10.10.10.10, created 551 msecs ago, received > > > 0/4 > > > bytes) > > > Nov 16 11:30:26 xxxxxxxx dovecot[1361]: imap: Error: > > > net_connect_unix(/var/run/dovecot/stats-writer) failed: Resource > > > temporarily unavailable > > > ------------------------- > > > > > > I set the following because I thought it was a problem with the > > > number of connections, but I get an error. > > > > > > service imap-login { > > > service_count=0 > > > client_limit = $default_client_limit > > > process_min_avail = 4 > > > process_limit = $default_process_limit > > > vsz_limit = 1G > > > } > > > > > > limits.conf > > > ------------------------- > > > * soft nofile 4096 > > > * hard nofile 4096 > > > ------------------------- > > > > > > cat /proc/sys/net/core/somaxconn > > > ------------------------- > > > 4096 > > > ------------------------- > > > > > > Is there any other tuning point? > > > Where should I look? > > > > https://wiki.dovecot.org/SocketUnavailable > > > > Aki

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RE: about imap-login: Error and imap: Error after Version-UP
by 'Aki Tuomi' 18 Nov '20

18 Nov '20

You need to configure stats service client limit and imap service client limit. Those are different services than imap-login service. Aki > On 17/11/2020 01:28 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp> wrote: > > > Aki-san > > I have already seen that page. > Is the setting method wrong? > > Is there any other tuning point? > > morikawa > -----Original Message----- > From: Aki Tuomi [mailto:aki.tuomi@open-xchange.com] > Sent: Monday, November 16, 2020 8:52 PM > To: 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp>; dovecot(a)dovecot.org > Subject: Re: about imap-login: Error and imap: Error after Version-UP > > > > On 16/11/2020 13:44 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp> wrote: > > > > > > We have upgraded dovecot from 2.0.9 (centos6) to 2.2.36 (centos8). > > > > If more than 1000 users log in, the following error will occur. > > ------------------------- > > Nov 16 11:33:00 xxxxxxxx dovecot[1361]: imap-login: Error: master(imap): > > net_connect_unix(imap) failed: Resource temporarily unavailable - > > http://wiki2.dovecot.org/SocketUnavailable (client-pid=1362, > > client-id=129834, rip=10.10.10.10, created 551 msecs ago, received 0/4 > > bytes) > > Nov 16 11:30:26 xxxxxxxx dovecot[1361]: imap: Error: > > net_connect_unix(/var/run/dovecot/stats-writer) failed: Resource > > temporarily unavailable > > ------------------------- > > > > I set the following because I thought it was a problem with the number > > of connections, but I get an error. > > > > service imap-login { > > service_count=0 > > client_limit = $default_client_limit > > process_min_avail = 4 > > process_limit = $default_process_limit > > vsz_limit = 1G > > } > > > > limits.conf > > ------------------------- > > * soft nofile 4096 > > * hard nofile 4096 > > ------------------------- > > > > cat /proc/sys/net/core/somaxconn > > ------------------------- > > 4096 > > ------------------------- > > > > Is there any other tuning point? > > Where should I look? > > https://wiki.dovecot.org/SocketUnavailable > > Aki

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Re: about imap-login: Error and imap: Error after Version-UP
by Aki Tuomi 17 Nov '20

17 Nov '20

> On 16/11/2020 13:44 森川　孝司 <morikawa-k6(a)itec.hankyu-hanshin.co.jp> wrote: > > > We have upgraded dovecot from 2.0.9 (centos6) to 2.2.36 (centos8). > > If more than 1000 users log in, the following error will occur. > ------------------------- > Nov 16 11:33:00 xxxxxxxx dovecot[1361]: imap-login: Error: master(imap): > net_connect_unix(imap) failed: Resource temporarily unavailable - > http://wiki2.dovecot.org/SocketUnavailable (client-pid=1362, > client-id=129834, rip=10.10.10.10, created 551 msecs ago, received 0/4 > bytes) > Nov 16 11:30:26 xxxxxxxx dovecot[1361]: imap: Error: > net_connect_unix(/var/run/dovecot/stats-writer) failed: Resource temporarily > unavailable > ------------------------- > > I set the following because I thought it was a problem with the number of > connections, but I get an error. > > service imap-login { > service_count=0 > client_limit = $default_client_limit > process_min_avail = 4 > process_limit = $default_process_limit > vsz_limit = 1G > } > > limits.conf > ------------------------- > * soft nofile 4096 > * hard nofile 4096 > ------------------------- > > cat /proc/sys/net/core/somaxconn > ------------------------- > 4096 > ------------------------- > > Is there any other tuning point? > Where should I look? https://wiki.dovecot.org/SocketUnavailable Aki

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about imap-login: Error and imap: Error after Version-UP
by 森川　孝司 16 Nov '20

16 Nov '20

We have upgraded dovecot from 2.0.9 (centos6) to 2.2.36 (centos8). If more than 1000 users log in, the following error will occur. ------------------------- Nov 16 11:33:00 xxxxxxxx dovecot[1361]: imap-login: Error: master(imap): net_connect_unix(imap) failed: Resource temporarily unavailable - http://wiki2.dovecot.org/SocketUnavailable (client-pid=1362, client-id=129834, rip=10.10.10.10, created 551 msecs ago, received 0/4 bytes) Nov 16 11:30:26 xxxxxxxx dovecot[1361]: imap: Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: Resource temporarily unavailable ------------------------- I set the following because I thought it was a problem with the number of connections, but I get an error. service imap-login { service_count=0 client_limit = $default_client_limit process_min_avail = 4 process_limit = $default_process_limit vsz_limit = 1G } limits.conf ------------------------- * soft nofile 4096 * hard nofile 4096 ------------------------- cat /proc/sys/net/core/somaxconn ------------------------- 4096 ------------------------- Is there any other tuning point? Where should I look?

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last-login Plugin
by Andrea Gabellini 16 Nov '20

16 Nov '20

Hello, i'm using last_login plugin and store data into a MySql DB. I'm using version 2.3.10.1 and the config is at the end of the email. I would like to store also the remote IP and the session name. The config is working but other informations are written only the first time. Any update is ignored but last_login time. Debugging MySQL, I notice that dovecot is using this query: INSERT INTO last_login (last_login,userid,rip,protocol,session) VALUES (1605350938,'xxxx',x.x.x.x','imap','jLFs5A609cdSN4Wh') ON DUPLICATE KEY UPDATE last_login=1605350938 How can I modify the configuration? conf.d/95-last_login.conf: dict { lastlogin = mysql:/etc/dovecot/dovecot-last-login.conf.ext } plugin { last_login_dict = proxy::lastlogin last_login_key = last-login/%u/%r/%s/%{session} } protocol imap { mail_plugins = $mail_plugins last_login } protocol pop3 { mail_plugins = $mail_plugins last_login } dovecot-last-login.conf.ext: connect = host=/var/lib/mysql/mysql.sock dbname=dovecot user=xxx password=xxx map { pattern = shared/last-login/$userid/$rip/$service/$session table = last_login value_field = last_login value_type = uint fields { userid = $userid rip = $rip protocol = $service session = $session } } -- __________________________ UNIX is user friendly. It's just selective about who its friends are. __________________________ TIM San Marino S.p.A. Andrea Gabellini Engineering R&D TIM San Marino S.p.A. - https://www.telecomitalia.sm Via Ventotto Luglio, 212 - Piano -2 47893 - Borgo Maggiore - Republic of San Marino Tel: (+378) 0549 886237 Fax: (+378) 0549 886188 -- Informativa Privacy Questa email ha per destinatari dei contatti presenti negli archivi di TIM San Marino S.p.A.. Tutte le informazioni vengono trattate e tutelate nel rispetto della normativa vigente sulla protezione dei dati personali (Reg. EU 2016/679). Per richiedere informazioni e/o variazioni e/o la cancellazione dei vostri dati presenti nei nostri archivi potete inviare una email a privacy(a)telecomitalia.sm. Avviso di Riservatezza Il contenuto di questa e-mail e degli eventuali allegati e' strettamente confidenziale e destinato alla/e persona/e a cui e' indirizzato. Se avete ricevuto per errore questa e-mail, vi preghiamo di segnalarcelo immediatamente e di cancellarla dal vostro computer. E' fatto divieto di copiare e divulgare il contenuto di questa e-mail. Ogni utilizzo abusivo delle informazioni qui contenute da parte di persone terze o comunque non indicate nella presente e-mail potra' essere perseguito ai sensi di legge.

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[patch] enhancement for tika server protected by user/password basic auth
by John Fawcett 16 Nov '20

16 Nov '20

Hi The existing code is designed for a tika server on local host, or on a remote host that is either accessable to all or for example taht is protected by ip restrictions via a proxy in front of it. I've configured a tika server behind an apache proxy which enforces basic auth, but sending basic auth credentials for a tika server is not currently supported by Dovecot. The following patch allows to have user and password specified in the fts_tika url in much the same way you can for fts_solr. fts_tika = https://user:password@tika_host/tika John --- dovecot-2.3.11.3-orig/src/plugins/fts/fts-parser-tika.c 2020-08-12 14:20:41.000000000 +0200 +++ dovecot-2.3.11.3/src/plugins/fts/fts-parser-tika.c 2020-11-15 15:18:24.351281064 +0100 @@ -57,7 +57,7 @@ tuser = p_new(user->pool, struct fts_parser_tika_user, 1); MODULE_CONTEXT_SET(user, fts_parser_tika_user_module, tuser); - if (http_url_parse(url, NULL, 0, user->pool, + if (http_url_parse(url, NULL, HTTP_URL_ALLOW_USERINFO_PART, user->pool, &tuser->http_url, &error) < 0) { i_error("fts_tika: Failed to parse HTTP url %s: %s", url, error); return -1; @@ -152,6 +152,11 @@ http_url->host.name, t_strconcat(http_url->path, http_url->enc_query, NULL), fts_tika_parser_response, parser); + if (http_url->user != NULL) { + http_client_request_set_auth_simple( + http_req, http_url->user, http_url->password); + } + http_client_request_set_port(http_req, http_url->port); http_client_request_set_ssl(http_req, http_url->have_ssl); if (parser_context->content_type != NULL)

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Re: no shared cipher openssl
by Aki Tuomi 16 Nov '20

16 Nov '20

> On 16/11/2020 09:54 lists(a)lazygranch.com <lists(a)lazygranch.com> wrote: > > > On Sun, 15 Nov 2020 17:31:07 -0500 > Mike Schroeder <mikeschroe(a)gmail.com> wrote: > > > CentOS 7 > > Dovecot 2.2.36 > > > > Nov 14 07:13:08 mail dovecot: pop3-login: Disconnected (no auth > > attempts in 0 secs): > > user=<>, rip=73.0.0.0, lip=192.64.118.242, TLS handshaking: > > SSL_accept() failed: > > error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher, > > session=<> > > > > Was working fine for over a year, until the cert expired and I > > replaced it. I've tried the good cert I have for https and I used the > > Dovecot.org script to generate a self-signed certificate. > > > > 10-ssl.conf > > ## SSL settings > > #ssl = required > > ssl = yes > > #ssl = no > > ssl_cert = </etc/pki/dovecot/certs/mydomain.com.crt > > ssl_key = </etc/pki/dovecot/private/mydomain.com.key > > #ssl_ca = > > #ssl_require_crl = yes > > #ssl_client_ca_dir = > > #ssl_client_ca_file = > > #ssl_verify_client_cert = no > > #ssl_cert_username_field = commonName > > #ssl_dh_parameters_length = 1024 > > #ssl_protocols = !SSLv3 > > > > # SSL ciphers to use > > # ols values ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL > > ssl_cipher_list = > > ALL:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK: > > !RC4:!ADH:!LOW@STRENGTH > > > > # Prefer the server's order of ciphers over client's. > > #ssl_prefer_server_ciphers = no > > > > # Prefer the server's order of ciphers over client's. > > #ssl_prefer_server_ciphers = no > > # SSL crypto device to use, for valid values run "openssl engine" > > #ssl_crypto_device = > > > > # SSL extra options. Currently supported options are: > > # no_compression - Disable compression. > > # no_ticket - Disable SSL session tickets. > > #ssl_options = > > > > =========================== > > # openssl x509 -dates -in mydomain.com.crt > > notBefore=Nov 11 16:31:35 2020 GMT > > notAfter=Nov 11 16:31:35 2022 GMT > > -----BEGIN CERTIFICATE----- > > : > > =========================== > > # openssl pkey -in mydomain.com.key > > -----BEGIN PRIVATE KEY----- > > : > > > > Thanks for taking a look. Any ideas on what I should do next to > > debug? > > > > Mike > > I remembered this problem was posted and still had the reply post from > Viktor. This may or may not be relevant. A search on this text will > probably drag up the whole thread. > --------------- > Specifically, an ECDSA P-256 certificate, but some systems don't (yet?) > support ECDSA. You'd need an additional RSA certificate to interoperate > with their sending MTA's limited STARTTLS cipher/protocol repertoire. > -------------- > > When this thread went around I looked at my logs and found some no > auth complaints on my dovecot log. I believe they were trying to use > the sslv3 to hack my server. Or at least see if it is hackable. Since > my email server is a personal one and the attack was from a hosting > company, I blocked server IP space. > > The weird thing I get your error now myself but not consistently. Here > is an example. > ------------------------------- > Nov 16 04:18:37 imap-login: Info: Disconnected (no auth attempts in 0 secs): user=<>, rip=myvpn, lip=myserverip, TLS handshaking: SSL_accept() failed: error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate unknown: SSL alert number 46, session=<rXchrDG06qvGx2p9> > Nov 16 04:18:37 imap-login: Info: Login: user=<me(a)mydomain.com>, method=PLAIN, rip=myvpn, lip=myserverip, mpid=11710, TLS, session=<DSIjrDG05KvGx2p9> > > However the problem isn't present at the moment. Dovecot supports alternative certificate if you have problems with ECDSA and need to use RSA for them. See https://doc.dovecot.org/settings/core/#ssl-alt-cert Aki

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