- dovecot - dovecot.org

getmail with dovecot delivering problems
by Samuel Reina Calvo 22 Mar '17

22 Mar '17

Hi there, I put together a mail server with postfix+dovecot+mysql with virtual users and it works just fine as internal mail server, but when i put ir under a multidrop email server it sends ok but so far coulnd make getmail to deliver mails correctly. the use of getmail + dovecot downloads email via pop3 but then put all the emails in the same inbox. my maildir is /var/vmail/[domain] getmalirc conf is [retriever]type = MultidropPOP3Retriver server username password envelope_recipient = delivered-to:1 [destination] type = MDA_external path = /usr/local/libexec/dovecot/deliverthen when i run sudo -H -u vmail bash -c 'getmail -g /etc/.getmail -r /etc/.getmail/getmailrc' i get all the time all the messages delivered into /var/vmail/vmail (being vmail the linux user who handles my virtual users) __________ Información de ESET NOD32 Antivirus, versión de la base de firmas de virus 14929 (20170213) __________ ESET NOD32 Antivirus ha comprobado este mensaje. http://www.eset.com

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last_login LDAP - killed with signal 11 (core dumped)
by Leon Kyneur 22 Mar '17

22 Mar '17

Hi I am trying to configure the last_login plugin with LDAP dictionary which is causing dict service to crash. Not sure if this is a bug or some configuration parameter I'm getting wrong? Running latest dovecot but was having the same problem in earlier version 2.2.25 # dovecot --version 2.2.28 (bed8434) I have configured dovecot like so: dovecot.conf (before conf.d/*.conf: dict { #quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext #expire = sqlite:/etc/dovecot/dovecot-dict-sql.conf.ext lastlogin = ldap:/etc/dovecot/dovecot-ldap-dict.conf.ext } conf.d/10-master.conf service dict { # If dict proxy is used, mail processes should have access to its socket. # For example: mode=0660, group=vmail and global mail_access_groups=vmail unix_listener dict { mode = 0660 user = vmail group = vmail } } conf.d/20-imap.conf: protocol imap { # Space separated list of plugins to load (default is global mail_plugins). mail_plugins = $mail_plugins last_login # Maximum number of IMAP connections allowed for a user from each IP address. # NOTE: The username is compared case-sensitively. #mail_max_userip_connections = 10 } 90-plugins.conf plugin { #setting_name = value #last_login_dict = proxy::lastlogin last_login_dict = proxy:dict:lastlogin zlib_save = gz zlib_save_level = 6 } dovecot-ldap-dict.conf.ext: uri = ldap://ldap.internal bind_dn = cn=Manager,dc=mail,dc=com password = XXXX tls = no debug = 1 map { pattern = last-login/$user filter = (&(mail=%{user})(objectClass=mailUser)) # the () is required base_dn = o=domains,dc=mail,dc=com username_attribute = mail value_attribute = lastLoginTime fields { mail=$user } } I don't see dovecot ever making a connection to the LDAP server I've configured in the dovecot-ldap-dict.conf.ext file. Log shows ==> /var/log/dovecot.log <== Mar 22 07:49:30 imap-login: Info: Login: user=<leon(a)mail.com>, method=PLAIN, rip=X.X.X.X, lip=X.X.X.X, mpid=36105, secured, session=<o0Lu/0xL4N3LhgGR> Mar 22 07:49:30 dict: Fatal: master: service(dict): child 36107 killed with signal 11 (core dumped) Mar 22 07:49:30 imap(leon(a)mail.com): Error: dict-client: Commit may have failed: Connection closed (reply took 0.015 secs) Mar 22 07:49:30 imap(leon(a)mail.com): Error: last_login_dict: Write was unconfirmed (timeout or disconnect) for user leon(a)mail.com Backtrace: # gdb /var/core/36107 GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-94.el7 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... [New LWP 36107] Reading symbols from /usr/libexec/dovecot/dict...Reading symbols from /usr/lib/debug/usr/libexec/dovecot/dict.debug...done. done. Missing separate debuginfo for Try: yum --enablerepo='*debug*' install /usr/lib/debug/.build-id/b0/07fede01895dec1aca9d8b8993fe27d70a3a20 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `dovecot/dict'. Program terminated with signal 11, Segmentation fault. #0 0x0000000000000000 in ?? () (gdb) bt full #0 0x0000000000000000 in ?? () No symbol table info available. #1 0x00007fbcf11bd04f in cmd_begin (cmd=0x7fbcf2c02910, line=<optimized out>) at dict-commands.c:365 trans = 0x7fbcf2c029a0 id = 1 #2 0x00007fbcf11bdef8 in dict_command_input (conn=conn@entry=0x7fbcf2bf24d0, line=line@entry=0x7fbcf2bf48cb "B1") at dict-commands.c:625 cmd_func = 0x7fbcf13c85c0 <cmds+32> cmd = 0x7fbcf2c02910 ret = <optimized out> #3 0x00007fbcf11bc6ee in dict_connection_input_more (conn=0x7fbcf2bf24d0) at dict-connection.c:117 _data_stack_cur_id = 3 line = 0x7fbcf2bf48cb "B1" ret = <optimized out> #4 0x00007fbcf11bc7d2 in dict_connection_input (conn=0x7fbcf2bf24d0) at dict-connection.c:167 line = <optimized out> conn = 0x7fbcf2bf24d0 #5 0x00007fbcf0d1b2d2 in io_loop_call_io (io=0x7fbcf2bf2890) at ioloop.c:599 ioloop = 0x7fbcf2be0740 t_id = 2 __FUNCTION__ = "io_loop_call_io" #6 0x00007fbcf0d1c95f in io_loop_handler_run_internal (ioloop=ioloop@entry=0x7fbcf2be0740) at ioloop-epoll.c:223 ctx = 0x7fbcf2beded0 events = <optimized out> list = 0x7fbcf2bf28f0 io = <optimized out> tv = {tv_sec = 2147483, tv_usec = 0} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 call = <optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #7 0x00007fbcf0d1b36c in io_loop_handler_run (ioloop=ioloop@entry=0x7fbcf2be0740) at ioloop.c:648 No locals. #8 0x00007fbcf0d1b528 in io_loop_run (ioloop=0x7fbcf2be0740) at ioloop.c:623 __FUNCTION__ = "io_loop_run" #9 0x00007fbcf0ca4603 in master_service_run (service=0x7fbcf2be05e0, callback=callback@entry=0x7fbcf11be150 <client_connected>) at master-service.c:641 No locals. #10 0x00007fbcf11bbff9 in main (argc=1, argv=0x7fbcf2be0390) at main.c:161 set_roots = {0x7fbcf13c88a0 <dict_setting_parser_info>, 0x0} error = 0x0

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Help
by Bhushan Bhosale 22 Mar '17

22 Mar '17

Hello, I'm getting below error in /var/log/dovecot-proxy.log. Please help. Thanks in advance. Mar 21 14:40:36 tejas3 dovecot: director: Error: Director 192.168.1.11/in disconnected: Connection closed: Illegal seek (connected 0 secs, in=0 out=43, handshake ME not received Regards, Bhushan

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dovecot POP3 log shows too many identical RETR entries
by Bappasaheb Nirmal 22 Mar '17

22 Mar '17

Hello, Dovecot log is showing too many POP3 RETR entries which are identical lines. I also suspect that it is causing high pop traffic eating most of the network bandwidth. Here are some of the lines out of 11009 in a day. Such pattern is observed only for few users. dovecot version is 2.1.17. ============== Mar 20 00:00:07 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:07 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=26645, secured, session=<5CGrmRlLyAAr861h> Mar 20 00:00:10 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:11 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=29932, secured, session=<k6/gmRlL3gAr861h> Mar 20 00:00:12 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:13 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=26819, secured, session=<3DX6mRlLUQAr861h> Mar 20 00:00:14 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:15 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=9636, secured, session=<x5ghmhlLjwAr861h> Mar 20 00:00:16 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:17 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=4585, secured, session=<8Yw+mhlL0AAr861h> Mar 20 00:00:18 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:18 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=30049, secured, session=<UsJOmhlLmAAr861h> Mar 20 00:00:19 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:20 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=9636, secured, session=<B6VimhlLNgAr861h> Mar 20 00:00:20 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:20 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=4584, secured, session=<pVpxmhlLPwAr861h> Mar 20 00:00:21 pi3 dovecot: pop3(user(a)example.com): Disconnected: Logged out top=0/0, retr=1/64014, del=0/1429, size=478762716 Mar 20 00:00:23 pi3 dovecot: pop3-login: Login: user=<user(a)example.com>, method=PLAIN, rip=43.243.173.97, lip=192.168.1.18, mpid=4585, secured, session=<MlGam ============== What could be the possible reason? Thanks, Bappasaheb

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Crash on doveadm index
by Larry Rosenman 22 Mar '17

22 Mar '17

http://www.lerctr.org/~ler/dovecot/doveadm-2017-03-20.txt doveconf –n attached and at: http://www.lerctr.org/~ler/dovecot/doveconf.n.txt -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: larryrtx(a)gmail.com US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281

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Is it possible to use sieve when delivering via pipe to the dovecot deliver command ?
by Thomas Carrié 21 Mar '17

21 Mar '17

Hello, I am using Exim with this delivery configuration: virtual_delivery: driver = pipe command = /usr/lib/dovecot/deliver -d $local_part@$domain -f ... I have enabled manage-sieve and uploaded a simple sieve script that I can see on the server. man page of /usr/lib/dovecot/deliver says it supports sieve. Mail debug is enabled: $ dovecot -n | grep debug mail_debug = yes Delivering a mail shows only this line in dovecot log: Jan 21 17:38:51 myserver dovecot: lda(joe(a)something.com): msgid=<20170121183537.7313f219@homenetwork>: saved mail to INBOX According to page http://wiki2.dovecot.org/Pigeonhole/Sieve/Troubleshooting#Sieve_Scripts_are… I should have a log saying that the sieve plugin is loaded Here is the sieve relevant parts of dovecot -n: # 2.2.13: /etc/dovecot/dovecot.conf ... plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } ... protocols = " imap sieve pop3 sieve" ... protocol lda { mail_plugins = " sieve" } Is there a requirement to use delivery via service (unix socket) so that sieve is enabled? Or is there a configuration thing I forgot ? Thank you for your help Thomas

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Re: Corruption & migration
by Daniel Miller 21 Mar '17

21 Mar '17

Now I'm seeing a bunch of these: 02:28 bubba dovecot: dsync-local(user(a)mydomain.com): Error: bzlib.read(/var/mail/mydomain.com/user/mdbox/storage/m.20): corrupted data at 24123649 Mar 21 11:02:28 bubba dovecot: dsync-local(user(a)mydomain.com): Error: dsync(oldserver.host): read(zlib(/var/mail/mydomain.com/user/mdbox/storage/m.20)) failed: read(/var/mail/mydomain.com/user/mdbox/storage/m.20) failed: bzlib.read(/var/mail/mydomain.com/user/mdbox/storage/m.20): corrupted data at 24123649 (last sent=mail, last recv=mail_request (EOL)) Mar 21 11:02:28 bubba dovecot: doveadm: Error: dsync-remote(user(a)mydomain.com): Error: dsync(localhost): read() failed: read((fd)) failed: dot-input stream ends without '.' line (last sent=mail_request (EOL), last recv=mail) Daniel On 3/20/2017 11:30 PM, Daniel Miller wrote: > I'm getting close - I believe I have one-way replication processing > now. It's amazing watching the mails magically appear in the new > server! I'll tender some updates to the wiki in the hopes it will > help others. > > At this time, I have two errors I haven't been able to eliminate with > config changes: > > dovecot: doveadm: Error: dsync-remote(user(a)mydomain.com): Warning: > Transaction log file > /var/mail/mydomain.com/user/sdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.log > was locked for 109 seconds (rotating while syncing) > Mar 20 23:22:04 bubba dovecot: dsync-local(user(a)mydomain.com): Error: > Remote command returned error 75: ssh -lvmail 192.168.0.4 doveadm > dsync-server -uuser(a)mydomain.com > > I don't know if the transaction lock issue will fix itself via > repeated replication runs. But I have no idea what the "error 75" is. > > Daniel > > > On 3/20/2017 10:05 PM, Daniel Miller wrote: >> I have an existing server using mdbox & sis. There is a quantity of >> corruption - I have no idea where it came in. I'd had a previous >> rebuild some years ago and I thought I had a clean datastore. By >> "corruption" I mean missing attachments and either missing or >> mixed-up emails. >> >> I've setup a new server on a virtual machine. Instead of copying the >> old configs I hand-adjusted individual settings using the current >> distribution example. The new server is running...but empty. >> >> So now my intent is to migrate the mail to the new machine. A few >> items to note: >> 1. The existing mail server is the virtual host. The mails are >> stored locally, in mdbox format, with sis enabled. And possibly zlib. >> 2. The new server, via VirtualBox, is presently configured for >> Maildir. I may change to sdbox - I'm now a little reserved about mdbox. >> 3. Instead of storing the mails within the virtual machine, I'm >> using the host's drive. This is via an exported NFS4 folder from the >> host, mounted on the guest, using the options: >> "auto,noatime,hard,intr,async,nordirplus". >> 4. My intent is to have the new virtual server become the primary >> mail server. The mail store will continue to be accessed by NFS4. No >> other servers or processes (besides backup) should access the mail >> store. >> >> So...my question is what is the best method for the migration? >> >> Reading the docs on Dovecot replication I'm still very unsure of how >> to implement it - particularly the "master-master" or "master-client" >> relationships. The docs are not 100% clear on which server gets >> which options. I can guess...which I'd really rather not do. But it >> seems to me getting one-way replication working would be the most >> "elegant" solution here. >> >> Manual dsync is also an option - but again I'm not on which machine I >> should execute which options. >> >> Imapsync is a possibility and the syntax is clear - but very slow in >> execution for 100k mails. >> >> Any suggestions or pointers would be welcome. >>

1 0

New Member
by Ger Hooton Scoil Chroí Íosa Blarney 21 Mar '17

21 Mar '17

Hi All, Before I start posting where /how can I check to see if the question I wish to ask about has already been covered? __________________________________________________ Please consider the environment before printing this email. Ger

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Re: Dovecot can't connect to openldap over starttls [REQUEST OF OPENLDAP]
by info＠gwarband.de 21 Mar '17

21 Mar '17

Can sombody say something about this request? This is an email from the openldap-technical mailinglist from openldap. Systemdetails are mention in the other email. -------- Originalnachricht -------- Betreff: Re: Dovecot can't connect to openldap over starttls Datum: 2017-03-20 16:18 Absender: Dan White <dwhite(a)cafedemocracy.org> Empfänger: info(a)gwarband.de Kopie: openldap-technical(a)openldap.org On 03/20/17 16:06 +0100, info(a)gwarband.de wrote: >> Debug Dovecot's implementation of ldap_start_tls_s(). > I don't have any idea how to set a higher debug level to dovecot. In > my opinion I have the highest. So I can't deliver a greater log. I recommend consulting Dovecot's advice on how to run a debugger, or dig into the code which calls libldap.

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doveadm-sync stateful
by Cédric ML 21 Mar '17

21 Mar '17

Hello, I'm trying to migrate mail accounts from an old server to a new one. As I need to migrate dozens of accounts which take about 1G each, I need to do stateful sync to make my migration in two times : 1 - I run a : doveadm -D -o mail_fsync=never -o imapc_user=user1(a)olddomain.fr sync -s "" -R -1 -u user1(a)newdomain.fr imapc: > /tmp/firstsync.log 2>&1 my accounts are synced, and I get a "state" string (AQAAAHm4+Jk=) as the output of doveadm sync command. 2 - Changes are made on the old server, and I expect next dsync will sync only the changes / new mails. So I run a : doveadm -D -o mail_fsync=never -o imapc_user=user1(a)olddomain.fr sync -s "AQAAAHm4+Jk=" -R -1 -u user1(a)newdomain.fr imapc: > /tmp/secondsync.log 2>&1 My problem is that state of messages are not synchronized (mails marked as read on old server are still unread on new server, mails moved on a folder on the old server are still in the INBOX of new server). The full debug of ran commands is available here : http://fpaste.scsys.co.uk/557551 The result of "doveconf -n" is available here : http://fpaste.scsys.co.uk/557552 I'm using version 2.2.27 Can anyone tell me if I'm doing something wrong ? How can I debug more ? Regards, Cédric

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Re: Corruption & migration
by Daniel Miller 21 Mar '17

21 Mar '17

I'm getting close - I believe I have one-way replication processing now. It's amazing watching the mails magically appear in the new server! I'll tender some updates to the wiki in the hopes it will help others. At this time, I have two errors I haven't been able to eliminate with config changes: dovecot: doveadm: Error: dsync-remote(user(a)mydomain.com): Warning: Transaction log file /var/mail/mydomain.com/user/sdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.log was locked for 109 seconds (rotating while syncing) Mar 20 23:22:04 bubba dovecot: dsync-local(user(a)mydomain.com): Error: Remote command returned error 75: ssh -lvmail 192.168.0.4 doveadm dsync-server -uuser(a)mydomain.com I don't know if the transaction lock issue will fix itself via repeated replication runs. But I have no idea what the "error 75" is. Daniel On 3/20/2017 10:05 PM, Daniel Miller wrote: > I have an existing server using mdbox & sis. There is a quantity of > corruption - I have no idea where it came in. I'd had a previous > rebuild some years ago and I thought I had a clean datastore. By > "corruption" I mean missing attachments and either missing or mixed-up > emails. > > I've setup a new server on a virtual machine. Instead of copying the > old configs I hand-adjusted individual settings using the current > distribution example. The new server is running...but empty. > > So now my intent is to migrate the mail to the new machine. A few > items to note: > 1. The existing mail server is the virtual host. The mails are > stored locally, in mdbox format, with sis enabled. And possibly zlib. > 2. The new server, via VirtualBox, is presently configured for > Maildir. I may change to sdbox - I'm now a little reserved about mdbox. > 3. Instead of storing the mails within the virtual machine, I'm using > the host's drive. This is via an exported NFS4 folder from the host, > mounted on the guest, using the options: > "auto,noatime,hard,intr,async,nordirplus". > 4. My intent is to have the new virtual server become the primary > mail server. The mail store will continue to be accessed by NFS4. No > other servers or processes (besides backup) should access the mail store. > > So...my question is what is the best method for the migration? > > Reading the docs on Dovecot replication I'm still very unsure of how > to implement it - particularly the "master-master" or "master-client" > relationships. The docs are not 100% clear on which server gets which > options. I can guess...which I'd really rather not do. But it seems > to me getting one-way replication working would be the most "elegant" > solution here. > > Manual dsync is also an option - but again I'm not on which machine I > should execute which options. > > Imapsync is a possibility and the syntax is clear - but very slow in > execution for 100k mails. > > Any suggestions or pointers would be welcome. >

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Corruption & migration
by Daniel Miller 21 Mar '17

21 Mar '17

I have an existing server using mdbox & sis. There is a quantity of corruption - I have no idea where it came in. I'd had a previous rebuild some years ago and I thought I had a clean datastore. By "corruption" I mean missing attachments and either missing or mixed-up emails. I've setup a new server on a virtual machine. Instead of copying the old configs I hand-adjusted individual settings using the current distribution example. The new server is running...but empty. So now my intent is to migrate the mail to the new machine. A few items to note: 1. The existing mail server is the virtual host. The mails are stored locally, in mdbox format, with sis enabled. And possibly zlib. 2. The new server, via VirtualBox, is presently configured for Maildir. I may change to sdbox - I'm now a little reserved about mdbox. 3. Instead of storing the mails within the virtual machine, I'm using the host's drive. This is via an exported NFS4 folder from the host, mounted on the guest, using the options: "auto,noatime,hard,intr,async,nordirplus". 4. My intent is to have the new virtual server become the primary mail server. The mail store will continue to be accessed by NFS4. No other servers or processes (besides backup) should access the mail store. So...my question is what is the best method for the migration? Reading the docs on Dovecot replication I'm still very unsure of how to implement it - particularly the "master-master" or "master-client" relationships. The docs are not 100% clear on which server gets which options. I can guess...which I'd really rather not do. But it seems to me getting one-way replication working would be the most "elegant" solution here. Manual dsync is also an option - but again I'm not on which machine I should execute which options. Imapsync is a possibility and the syntax is clear - but very slow in execution for 100k mails. Any suggestions or pointers would be welcome. -- Daniel

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Re: Dovecot 2.2.27 proxy - enforcing per client IP connection limits
by Joseph Tam 21 Mar '17

21 Mar '17

Sami Ketola writes: >> Can anyone with Solr installed confirm/refute this: does installing >> Solr keep iOS clients from roofing the connection count? > > I doubt it, but since IMAP SEARCH goes all the way down to the backends > mail_max_userip_connections can be used to limit the number of > connections. Understood -- that's the current situation I'm in now. Our iOS users would launch a search resulting in a connection burst, hit the connection cap, log out all IMAP sessions out, then start the cycle again. This sometimes lasts for 10's of minutes. I'm not sure what the users sees. Sample logs entries: Mar 19 01:21:30 server dovecot: imap-login: Login: user=<user> ... [... 14 similar logins removed ...] Mar 19 01:21:41 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:42 server dovecot: imap-login: Maximum number of connections from user+IP exceeded (mail_max_userip_connections=16) : user=<user> ... Mar 19 01:21:42 server dovecot: imap(user): Logged out in=425 out=1107 [... 14 similar logouts removed ...] Mar 19 01:21:42 server dovecot: imap(user): Logged out in=382 out=1107 Mar 19 01:21:42 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:42 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:43 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:44 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:44 server dovecot: imap(user): Logged out in=442 out=1173 Mar 19 01:21:44 server dovecot: imap(user): Logged out in=442 out=1155 Mar 19 01:21:44 server dovecot: imap(user): Logged out in=442 out=1166 Mar 19 01:21:44 server dovecot: imap(user): Logged out in=442 out=1174 Mar 19 01:21:44 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:47 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:47 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:48 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:48 server dovecot: imap-login: Login: user=<user> ... Mar 19 01:21:49 server dovecot: imap-login: Login: user=<user> ... { ... and on and on for the next 10 minutes ... } However, there is a pause between each login that might be long enough to squeeze the search results in if given quickly enough. From the I/O stats, most of these searches have empty results. It probably won't prevent the connection cap problem, but it might minimize the length and severity of these connection storms. Of course, the real fix is for iOS mail-app developers to stop assuming the IMAP server is owned exclusively by the user by configuring some reasonable connection throttles. Joseph Tam <jtam.home(a)gmail.com>

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Dovecot can't connect to openldap over starttls
by info＠gwarband.de 20 Mar '17

20 Mar '17

Hello guys, actually I'm trying to configure dovecot to access openldap for passwordcheck. My openldap is only allow access over "secure ldap". The dovecot can communicate with the openldap server but there is maybe a failure in the sslhandshake. Additional information you can find in the logs or in the dump below. Also I have my ldap config from dovecot in the links below. I have already created an bug reporting in the system of openldap but the answer was to get support from her. All datalinks: https://gwarband.de/openldap/dovecot.log https://gwarband.de/openldap/dovecot-ldap.conf https://gwarband.de/openldap/openldap.log https://gwarband.de/openldap/trace.dump The bugreportinglink from openldap: http://www.openldap.org/its/index.cgi/Incoming?id=8615 I hope you can help me. Regards. Tobias Warband

2 10

Can't verify remote server certs without trusted CAs (ssl_client_ca_* settings)
by Ralf Hildebrandt 20 Mar '17

20 Mar '17

Hi! I upgraded the 2.2 packages today (from 2:2.2.28-1~auto+5 to 2:2.2.28-1~auto+8) I now I'm getting an error: Mar 20 13:25:58 mproxy dovecot: auth: Error: imapc(email.charite.de:993): Couldn't initialize SSL context: Can't verify remote server certs without trusted CAs (ssl_client_ca_* settings) I checked, and alas, I had ssl_client_ca_dir = ssl_client_ca_file = So I set: ssl_client_ca_file = </etc/ssl/certs/ca-certificates.crt But I'm still getting the error above. I addition, dovecot is crashing with SIGSEGV: Mar 20 13:28:23 mproxy dovecot: auth: Error: imapc(email.charite.de:993): Couldn't initialize SSL context: Can't verify remote server certs without trusted CAs (ssl_client_ca_* settings) Mar 20 13:28:23 mproxy dovecot: auth: Error: imapc(email.charite.de:993): No SSL context Mar 20 13:28:23 mproxy dovecot: auth: Error: imap(la***sch,87.77.180.61): Disconnected from server Mar 20 13:28:23 mproxy postfix/submission/smtpd[32682]: warning: zb43d.pia.fu-berlin.de[87.77.180.61]: SASL PLAIN authentication failed: Connection lost to authentication server Mar 20 13:28:23 mproxy dovecot: auth: Fatal: master: service(auth): child 32685 killed with signal 11 (core dumped) -- 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

2 5

doveadm proxy password
by Angel L. Mateo 20 Mar '17

20 Mar '17

Hi, I'm configuring a proxy host to connect to backend servers. As proxy is done based on an LDAP attribute of the user, I'm not using director. In the proxy server I have configured: doveadm_port = 24245 doveadm_password = secret And in the backend: service doveadm { inet_listener { port = 24245 } } local <mynetwork> { doveadm_password = secret } But when I run a doveadm command in the proxy I get: amateo_adm@musio10:/etc/dovecot/conf.d$ sudo doveadm quota get -u amateo(a)um.es doveadm(amateo(a)um.es): Error: doveadm authentication failed () doveadm(amateo(a)um.es): Error: myotis50.um.es:24245: Command quota get failed for amateo(a)um.es: EOF Quota name Type Value Limit % And in the backed I get: Mar 20 15:52:01 myotis50 dovecot: doveadm: Error: doveadm client authenticated with wrong password I have checked with tcpdump and in the command is sending the base64 encoding of "doveadmsecret" Any help? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868889150 Fax: 868888337

1 0

Re: Dovecot 2.2.27 proxy - enforcing per client IP connection limits
by Joseph Tam 20 Mar '17

20 Mar '17

Adi Pircalabu writes: > For us it is, we're periodically getting hammered by iOS devices that > try to open 300+ simultaneous IMAP connections for a single user from > the same IP, while the average hovers usually below 50 for the busier > mailboxes with many folders. Oh yeah, I've seen this. I think this happens when someone does a global pattern search, which causes the client to launch IMAP SEARCH commands on each and every mailbox. I've wondered whether installing Solr would alleviate this: it wouldn't directly address the connection limit problem, but perhaps it can return results fast enough to keep the concurrent connections count down. Can anyone with Solr installed confirm/refute this: does installing Solr keep iOS clients from roofing the connection count? Joseph Tam <jtam.home(a)gmail.com>

2 1

Mail restore and single storage attachement
by Jean-Luc Oms 20 Mar '17

20 Mar '17

Bonjour, I'm finishing the upgrade of an old installation of Dovecot/postfix mail system for my lab. In the configuration i plan ( dovecot 2.2.27 ), i choose to use: - mdbox format - single storage for attachements - 2 zfs file systems, one for mdboxes, the other for attachments The last tests before production concern my hability to restore a lost mail (or mailbox) ... (lot of changes when you are used to mbox format). 1) I uses doveadm import to restore part of mail from one of the zfs snapshot with a cde like: doveadm -Dv import -U bof2 -s -u bof2 mdbox:/mailpool/lirmm/.zfs/snapshot/zfs-auto-snap_frequent-2017-03-15-1645/vmail/bof2/mdbox Recup-AAAA mailbox AAAA I get this error: doveadm(bof2): Error: open() failed with file /mailpool/lirmm/.zfs/snapshot/zfs-auto-snap_frequent-2017-03-15-1645/vmail/bof2/mdbox/mailboxes/AAAA/dbox-Mails/dovecot.index.log: Read-only file system Thats right, my snapshot is ro, but why the import has to write to the source ? I'm missing something ? 2) I don't find any way to specify a source for attachements with the import command, then I first restore all the atachements from one snapshot, then make import, then purge. Is there a way to use a source for attachement file tree, or a command to find the mssing files for the import command ? Thanks -- __________________________________________ Jean-Luc Oms STI-RéseauX - LIRMM - CNRS/UM2 161 rue Ada - BAT 4 - CC 477 34095 Montpellier cedex 5 Tel +33 4 67 41 85 93 Urg +33 6 32 01 04 17 __________________________________________

1 1

Deploying Diffie-Hellman for TLS
by Jerry 20 Mar '17

20 Mar '17

I have been reading up on TLS and Dovecot and came across this URL: https://www.weakdh.org/sysadmin.html which recommended these settings for Dovecot. I would like to know if they are correct? Some much documentation on the web is pure garbage. Dovecot These changes should be made in /etc/dovecot.conf Cipher Suites ssl_cipher_list=ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA ssl_prefer_server_ciphers = yes (Dovecot 2.2.6 or greater) DH parameters #regenerates every week ssl_dh_parameters_length = 2048 Contrary to what the site recommends, I would have thought that changes should be made in the "10-ssl.conf" file. I am running "Dovecot 2.2.28" on a FreeBSD-11 machine with OpenSSL 1.0.2k, if that makes any difference. Thanks -- Jerry

2 1

Server migration
by Gandalf Corvotempesta 20 Mar '17

20 Mar '17

Hi to all. It's time to migrate an old server to a newer platform Some questions: 1) what happens by changing the pop3/IMAP server on the client? Is the client (Outlook, Thunderbird,...) smart enough to not download every message again? I'm asking this because the easier way to migrate would be move all mailboxes to the new server and then change the hostname on the client 2) what if I add a dovecot proxy on the new server, proxing back all requests to the older one, if the mailbox is still not migrated? Would the whole pop3/IMAP transaction happen through the proxy or there is something an http redirect (or anything similiar to the SIP protocol) ? 3) I think the response to this is no: is dovecot able to log the hostname used for the connection? I have multiple domains pointing to the same IP. Something like the Host header in Http.

2 1

[Bug] Mailbox aliases still broken
by azurit＠pobox.sk 20 Mar '17

20 Mar '17

Hi, about an year ago i was reporting a bug in mailbox aliases, which remains unfixed and unasnwered (probably totally ignored, don't understand why). I thought it was because the bug is old and already fixed but yesterday i upgraded to Dovecot 2.2.24 and problem persists. Here is the original report, everything, except the Dovecot version, is still correct: http://dovecot.org/list/dovecot/2015-June/101176.html Will this be fixed? Thanks for info. azur

4 7

dovecot problem with ssl
by Nilton Jose Rizzo 19 Mar '17

19 Mar '17

Hi all, I already searched for this error on google and nothing I never install dovecot, this is a first time. This error, I know, is too newbie and stupid, but I checked more than twice. root@server:/usr/local/etc/dovecot # sievec /home3/virtual/default.sieve doveconf: Fatal: Error in configuration file /usr/local/etc/dovecot/conf.d/10-ssl.conf line 7: Unknown setting: ssl root@server:/usr/local/etc/dovecot # I'm running a FreeBSD 12-current and compile all from ports (mysql, dovecot2, portfix3.1, and all needs ports, but this error don't leave. I'm fowling this tutorial to install all, but when I'll run a sievec this stop with this error. I'm not new in FreeBSD, I'm have good experience in FreeBSD. --- /************************************************* **Nilton José Rizzo UFRRJ **http://www.rizzo.eng.br http://www.ufrrj.br **http://lattes.cnpq.br/0079460703536198 **************************************************/

4 11

replication issues between to nodes
by Remko Lodder 18 Mar '17

18 Mar '17

Hi, Some time ago I posted the below but never got a reponse that I could work with. So i am retrying now in the hope that there might be a better idea/suggestion on how to approach this. Situation; I have two nodes, which should replicate to eachother. My main machine receives most mail and the other one receives mostly system messages and should get replicated. (This used to be delivered on both machines, but given the issues below I had to make sure that the customer email at least arrives on machine A, as detailed below). When a mail arrives on main machine (A) everything is fine and things are synchronised asap. Customers can see the email directly via webmail/imap. When a mail arrives on the secondary machine (B) the replication is not issued until machine A starts a sync session. Customers do not see the email on machine A via webmail/imap. When a mail arrives on A, the synchronisation occurs, and all messages on B, not yet on A, are synchronised as well. Customers can now see the email on machine A as well via webmail/imap. Sadly this can mean that emails that became visible are hours late (read: were delivered hours before, but not visible for the customer). Both machines are configured through puppet, only individual settings like IP addresses and certificates are different because well, they have to. I included the difference below, and both ‘doveconf -n’s. If someone has a suggestion on seeing why machine B is not issueing (or does not seem to issue) replication, let me know. I verified that I can connect to the remote machines via IPv4 and IPv6 (for doveadm / replication purposes). Difference between configurations; --- tmp1.txt 2017-03-18 15:18:41.000000000 +0100 +++ tmp2.txt 2017-03-18 15:18:56.000000000 +0100 @@ -55,7 +55,7 @@ imapsieve_mailbox2_name = * mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size - mail_replica = tcps:mail.jr-hosting.nl:12346 + mail_replica = tcps:mail2.jr-hosting.nl:12346 sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_execute_bin_dir = /usr/local/lib/dovecot/sieve @@ -105,7 +105,7 @@ } service lmtp { inet_listener lmtp { - address = XXX/X 127.0.0.1 ::1 + address = YYYY/Y 127.0.0.1 ::1 port = 24 } unix_listener /var/spool/postfix/private/dovecot-lmtp { @@ -123,8 +123,8 @@ mode = 0666 } } -ssl_ca = </usr/local/etc/letsencrypt/live/mail2.jr-hosting.nl/fullchain.pem -ssl_cert = </usr/local/etc/letsencrypt/live/mail2.jr-hosting.nl/cert.pem +ssl_ca = </usr/local/etc/letsencrypt/live/mail.jr-hosting.nl/fullchain.pem +ssl_cert = </usr/local/etc/letsencrypt/live/mail.jr-hosting.nl/cert.pem ssl_client_ca_file = /usr/local/certificates/letsencrypt-ca.pem ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv2 !SSLv3 Machine A (the best working machine) # 2.2.28 (bed8434): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.17 (e179378) # OS: FreeBSD 11.0-RELEASE-p8 amd64 auth_mechanisms = plain login disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it haproxy_trusted_networks = XXXX/X lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_save_to_detail_mailbox = yes mail_debug = yes mail_fsync = always mail_location = mdbox:~/mdbox mail_plugins = " quota notify replication" 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 imapsieve namespace { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = . } passdb { driver = pam } plugin { imapsieve_mailbox1_before = file:/usr/local/lib/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/usr/local/lib/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size mail_replica = tcps:mail2.jr-hosting.nl:12346 sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_execute_bin_dir = /usr/local/lib/dovecot/sieve sieve_global_dir = /usr/local/etc/dovecot/sieve/global/ sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute sieve_global_path = /usr/local/etc/dovecot/sieve/default.sieve sieve_pipe_bin_dir = /usr/local/lib/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms } postmaster_address = postmaster(a)jr-hosting.nl protocols = imap pop3 lmtp sieve replication_dsync_parameters = -d -N -l 60 -U replication_max_conns = 100 service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0666 } } service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } } service doveadm { inet_listener { port = 12346 ssl = yes } } service imap-login { inet_listener imap_haproxy { haproxy = yes port = 10143 } inet_listener imaps_haproxy { haproxy = yes port = 10144 ssl = yes } service_count = 1 } service imap { process_limit = 1024 } service lmtp { inet_listener lmtp { address = XXXX/X 127.0.0.1 ::1 port = 24 } unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service pop3 { process_limit = 1024 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl_ca = </usr/local/etc/letsencrypt/live/mail.jr-hosting.nl/fullchain.pem ssl_cert = </usr/local/etc/letsencrypt/live/mail.jr-hosting.nl/cert.pem ssl_client_ca_file = /usr/local/certificates/letsencrypt-ca.pem ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv2 !SSLv3 userdb { driver = passwd } verbose_proctitle = yes protocol lmtp { auth_username_format = %n mail_plugins = quota sieve postmaster_address = postmaster(a)jr-hosting.nl } protocol lda { mail_plugins = " quota notify replication sieve" } protocol imap { mail_max_userip_connections = 50 mail_plugins = " quota notify replication imap_quota imap_sieve” } Machine B: # 2.2.28 (bed8434): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.17 (e179378) # OS: FreeBSD 11.0-RELEASE-p8 amd64 auth_mechanisms = plain login disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it haproxy_trusted_networks = XXX/X lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_save_to_detail_mailbox = yes mail_debug = yes mail_fsync = always mail_location = mdbox:~/mdbox mail_plugins = " quota notify replication" 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 imapsieve namespace { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = . } passdb { driver = pam } plugin { imapsieve_mailbox1_before = file:/usr/local/lib/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/usr/local/lib/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size mail_replica = tcps:mail.jr-hosting.nl:12346 sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_execute_bin_dir = /usr/local/lib/dovecot/sieve sieve_global_dir = /usr/local/etc/dovecot/sieve/global/ sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute sieve_global_path = /usr/local/etc/dovecot/sieve/default.sieve sieve_pipe_bin_dir = /usr/local/lib/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms } postmaster_address = postmaster(a)jr-hosting.nl protocols = imap pop3 lmtp sieve replication_dsync_parameters = -d -N -l 60 -U replication_max_conns = 100 service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0666 } } service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } } service doveadm { inet_listener { port = 12346 ssl = yes } } service imap-login { inet_listener imap_haproxy { haproxy = yes port = 10143 } inet_listener imaps_haproxy { haproxy = yes port = 10144 ssl = yes } service_count = 1 } service imap { process_limit = 1024 } service lmtp { inet_listener lmtp { address = XXXX/X 127.0.0.1 ::1 port = 24 } unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service pop3 { process_limit = 1024 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl_ca = </usr/local/etc/letsencrypt/live/mail2.jr-hosting.nl/fullchain.pem ssl_cert = </usr/local/etc/letsencrypt/live/mail2.jr-hosting.nl/cert.pem ssl_client_ca_file = /usr/local/certificates/letsencrypt-ca.pem ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv2 !SSLv3 userdb { driver = passwd } verbose_proctitle = yes protocol lmtp { auth_username_format = %n mail_plugins = quota sieve postmaster_address = postmaster(a)jr-hosting.nl } protocol lda { mail_plugins = " quota notify replication sieve" } protocol imap { mail_max_userip_connections = 50 mail_plugins = " quota notify replication imap_quota imap_sieve” }

1 0

sievec
by Robert Moskowitz 17 Mar '17

17 Mar '17

I am building a new mailserver on Centos7. My sieve is created with: mkdir /home/sieve cat <<EOF>/home/sieve/globalfilter.sieve || exit 1 require "fileinto"; if exists "X-Spam-Flag" { if header :contains "X-Spam-Flag" "NO" { } else { fileinto "Spam"; stop; } } if header :contains "subject" ["***SPAM***"] { fileinto "Spam"; stop; } EOF chown -R vmail:mail /home/sieve But in 90-sieve.conf there is the comment: # A path to a global sieve script file, which gets executed ONLY # if user's private Sieve script doesn't exist. Be sure to # pre-compile this script manually using the sievec command line # tool. #sieve_global_path = /var/lib/dovecot/sieve/default.sieve Do I run sievec on this script? And I found the following comment on a blog, about 3 years old: 2: Having a user-defined sieve script will cancel out the global script for redirecting spam. In the dovecot.conf, get rid of the sieve_global_path and sieve_global_dir, and instead use: sieve_before = /path/to/global.sieve -- what this will do is make sure that the global script runs before any user scripts, which allows the spam redirecting to actually work. What is current situation on this? thank you

4 8

Do I need to configure director?
by Angel L. Mateo 17 Mar '17

17 Mar '17

Hi, I'm configuring a farm of dovecot proxies redirecting users to backend servers. The decision of which backend server is used for a user is based in its ldap account information. In my previous configuration I was using an inherited director configuration in these proxy servers, but now I was wondering that because the decision is made according to user information, I don't need to run director. Do it? Is there any advantage of running director in this scenario? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868889150 Fax: 868888337

2 2

Replication Troubles
by Wolfgang Hennerbichler 16 Mar '17

16 Mar '17

Hi Dovecot Users, I’ve configured dovecot dsync replication and I see troubles in the logs and get user complaints which I can’t explain. I found similar threads on this mailinglist, but I couldn’t find a solution anywhere. Does anybody have dsync running without problems on a high volume mailserver? I see the following logs, examples given: Feb 17 18:16:49 dovecot dovecot: imap(zoechi): Warning: /var/mail/zoechi/dovecot-uidlist: Duplicate file entry at line 10395: 1487350019.M138380P28563.dovecot.wogri.at,S=18930,W=19377 (uid 41092 -> 41093) - retrying by re-reading from beginning with this one I’m not sure - it might be that this is completely OK because due to replication UIDs clash. Maybe that’s OK, but I couldn’t find a confirmation. Feb 17 18:16:49 dovecot dovecot: imap(zoechi): Warning: Maildir /var/mail/zoechi: Expunged message reappeared, giving a new UID (old uid=41092, file=1487350019.M138380P28563.dovecot.wogri.at,S=18930,W=19377) This one is definitely a problem, deleted messages re-appear in the mailbox. I made sure that the 2 hosts doing replication have different hostnames. I run 2.2.27 (from debian-jessie backports). Config below. Thanks for hints (or pointers to other example configs where dsync works without problems) # dovecot -n # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.8.14 x86_64 Debian 8.7 ext4 auth_verbose = yes debug_log_path = /var/log/dovecot.debug doveadm_password = # hidden, use -P to show it first_valid_gid = 106 first_valid_uid = 104 hostname = localhost last_valid_gid = 106 last_valid_uid = 104 mail_gid = dovecot mail_location = maildir:/var/mail/%n mail_plugins = quota fts fts_lucene virtual notify replication mail_temp_dir = /var/lib/dovecot/tmp mail_uid = dovecot managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext editheader namespace { list = children location = virtual:/var/mail/%n/virtual prefix = virtual. separator = . } namespace inbox { inbox = yes list = yes location = mailbox "Deleted Messages" { auto = subscribe special_use = \Trash } mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { special_use = \Trash } prefix = separator = . subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { default_language = de fts = lucene fts_lucene = whitespace_chars=@. mail_replica = tcp:172.16.1.1:12345 quota = maildir:User quota quota_rule = *:storage=5G quota_rule2 = Trash:storage=+200M quota_rule3 = Spam:ignore quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = /etc/sieve/%n.sieve sieve_default = /etc/sieve/default.sieve sieve_dir = ~/sieve sieve_extensions = +editheader } pop3_deleted_flag = $POP3Deleted postmaster_address = postmaster(a)wogri.at protocols = " imap lmtp sieve pop3" service aggregator { fifo_listener replication-notify-fifo { user = dovecot } unix_listener replication-notify { user = dovecot } } service doveadm { inet_listener { port = 12345 } } service imap { process_limit = 1024 } service lmtp { inet_listener lmtp { port = 2003 } unix_listener lmtp { user = dovecot } user = dovecot } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 1 } service pop3 { process_limit = 1024 } service quota-warning { executable = script /usr/local/sbin/quota-warning.sh unix_listener quota-warning { user = dovecot } user = dovecot } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 } } ssl = required ssl_cert = </etc/dovecot/server.cert.pem ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = quota sieve virtual notify replication } protocol lda { mail_plugins = quota fts fts_lucene virtual notify replication sieve } protocol imap { mail_max_userip_connections = 50 mail_plugins = quota fts fts_lucene virtual notify replication imap_quota } protocol pop3 { mail_plugins = quota fts fts_lucene virtual notify replication } local 2a00:XXX::/64 { doveadm_password = # hidden, use -P to show it }

3 4

Timeout Leak
by Luciano Mannucci 16 Mar '17

16 Mar '17

Hello all, I've got 3 occurences of this message in my log file: auth: Warning: Timeout leak: 0x805e480 (auth-request-handler.c:550) Can I ignore it, or is it a syhmptom of something wrong? I'm running dovecot 2.2.28 (bed8434). I'll post my doveconf -n if it is worth investigating further... Cheers, Luciano. -- /"\ /Via A. Salaino, 7 - 20144 Milano (Italy) \ / ASCII RIBBON CAMPAIGN / PHONE : +39 2 485781 FAX: +39 2 48578250 X AGAINST HTML MAIL / E-MAIL: posthamster(a)sublink.sublink.ORG / \ AND POSTINGS / WWW: http://www.lesassaie.IT/

2 2

'doveadm who' behind nginx mail proxy
by Edgaras Lukoševičius 16 Mar '17

16 Mar '17

Hello, we have configured nginx to work as mail proxy for backend dovecot servers. Dovecot servers behind nginx proxy are showing internal nginx ip address for every client when running 'doveadm who' instead of showing real client IP addresses. Is is possible to configure this setup to show real client IP addresses when running 'doveadm who' on internal dovecot servers or to configure nginx to show which user-ip pairs are proxied to which servers?

1 0

LDAP locking problems - home related
by Ganael Laplanche 16 Mar '17

16 Mar '17

Hi list, # dovecot --version 2.2.13 We use Dovecot LDA and I've discovered lots of messages stating that lock files cannot be written: Mar 16 12:02:03 mailhost dovecot: lda(someuser): Error: file_dotlock_open(/home/sg/someuser/.dovecot.lda-dupes) failed: No such file or directory That user's home directory is fetched from LDAP and does not exist locally on our 'mailhost' machine, so those error messages do make sense; I would like to fix that situation. In our current Dovecot configuration, only mail_location is set: mail_location = maildir:/var/mail/%u I would like to ignore the erroneous 'home' attribute fetched from LDAP and specify a common mail_home, i.e. set: mail_home = /var/mail/%u/home but if I understand correctly, that global mail_home configuration directive would still be overridden by the LDAP 'home' attribute fetched from passdb: [...] pass_attrs = supannAliasLogin=user,userPassword=password,\ homeDirectory=userdb_home,uidNumber=userdb_uid,gidNumber=userdb_gid [...] Can I just remove homeDirectory from pass_attrs to skip fetching 'home' from LDAP and then set the global mail_home ? Also, if that works: We would switch from a situation where a home is set (but wrong) to one where it becomes valid. Can there be any side-effect in that case (apart from fixing locking problems) ? Finally, will mail_home (leaf) directory be created if it does not exist yet (parent directory exists) ? Best regards, -- Ganael Laplanche <ganael.laplanche(a)centralesupelec.fr> Unix Systems Engineer @CentraleSupelec Rennes

1 1

Dovecot 2.2.27 proxy - enforcing per client IP connection limits
by Adi Pircalabu 16 Mar '17

16 Mar '17

Hi, Trying to keep abusive/buggy IMAP clients at bay on a number of Dovecot proxy servers, I've reconfigured them to use "mail_max_userip_connections = 50" in the "protocol imap" section, followed by restarting Dovecot. Yet, I'm still seeing 160+ established connections from a single IP address for the same email account. Am I missing anything? # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 2.6.32-642.4.2.el6.x86_64 x86_64 CentOS release 6.8 (Final) auth_cache_negative_ttl = 5 mins auth_cache_size = 16 M auth_cache_ttl = 18 hours default_client_limit = 6120 default_process_limit = 500 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 imapflags notify mbox_write_locks = fcntl 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 { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve sieve_extensions = +notify +imapflags } protocols = imap pop3 lmtp sieve service auth { client_limit = 6120 } service imap-login { process_limit = 2048 process_min_avail = 20 service_count = 0 vsz_limit = 256 M } service imap { process_limit = 2048 } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 0 vsz_limit = 128 M } service managesieve { process_limit = 1024 } service pop3 { process_limit = 1024 } [...] protocol imap { imap_capability = IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE mail_max_userip_connections = 50 } -- Adi Pircalabu

3 6

Postfix Ignoring lmtp, delivering straight to maildir
by Doug Barton 16 Mar '17

16 Mar '17

First I'd like to thank all the developers and contributors to dovecot. I've been using it for many years, and deeply appreciate your fine work. :) dovecot --version 2.2.22 (fe789d2) I have a working installation with postfix and dovecot, and I want to add sieve to it, so I am trying to configure postfix to use lmtp instead of 'virtual' for its delivery service. However it is ignoring that request, and for every message I get "status=sent (delivered to maildir)" and it shows up in my Inbox. On my mail host I have 1 normal user, let's say the username is 'myuser'. I have postfix configured to accept mail for several different domains, and each domain has a lot of different mail usernames (I use this for mailing lists and such). I use the virtual_maps feature of postfix, and have a map file that looks like this: abuse(a)dougbarton.us myuser hostmaster(a)dougbarton.us myuser dougb(a)dougbarton.us myuser ... All of this works great, and mail for all the different usernames and domains gets delivered into my one real user's Maildir, and I can see the mail with my IMAP clients. I've configured sieve in dovecot, and I can see the socket for lmtp in /var/spool/postfix/private/. I can also see the managesieve port in netstat, and I can use a sieve client to connect to it and edit scripts, etc. So according to all the tutorials I've read my next step is this in postfix' main.cf: virtual_transport = lmtp:unix:private/dovecot-lmtp which I did, and postfix restarts with no errors. But, it seems to avoid lmtp altogether, and as I mentioned above it delivers straight to my Maildir Inbox every time. I do have a sieve file, and the ~/dovecot.sieve symlink exists. I created a very simple filter: require ["fileinto", "imap4flags"]; if header :contains "Subject" "test" { fileinto "Junk"; } which my sieve client says is correct syntax. Still no joy. :-/ Any thoughts or suggestions are welcome. (And sorry this is so long, but based on my extensive searches it seems my configuration is a bit unique, so I explained it in some length.) Doug

3 5

Backing Up and Restoring mailboxes
by Jerry 15 Mar '17

15 Mar '17

I am going to be wiping clean my system and doing a complete upgrade. I have dovecot installed. I want to back up the mail system, and then be able to restore it. I thought that I could do this. doveadm -Dv backup -u user(a)example.com maildir:~/DoveBU Then I was going to gunzip that directory and put it onto a USB Drive. Now, after updating the system, I thought that I could just unzip the file from the USB drive. My question is, what command do I run to return the files to the same place they were originally. Assuming the structure was: "/var/mail/vmail/", what would I do? Thanks -- Jerry

1 0

FW: Unable to create needed folders
by Ken Zachreson 15 Mar '17

15 Mar '17

Never mind, I am stupid and did not read all available information. Needed to change permissions on /var/mail/* Thank You, Ken Z -----Original Message----- From: Ken Zachreson Sent: Wednesday, March 15, 2017 10:28 AM To: 'dovecot(a)dovecot.org' <dovecot(a)dovecot.org> Subject: Unable to create needed folders Greetings, The log reports that a process cannot create the needed folders. Please review and tell me what I have done wrong. dovecot 2.0.9 # 2.0.9: /etc/dovecot/dovecot.conf doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:85: protocol { ssl_listen } has been replaced by service { inet_listener { address } } # OS: Linux 2.6.32-642.15.1.el6.x86_64 x86_64 CentOS release 6.8 (Final) auth_mechanisms = plain login last_valid_gid = 520 last_valid_uid = 520 mail_location = mbox:~/mail/:INBOX=/var/mail/%u mbox_write_locks = fcntl passdb { args = dovecot driver = pam } protocols = imap service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imaps { address = * } } service pop3-login { inet_listener pop3s { address = * } } ssl_ca = /etc/pki/tls/certs/gd_bundle-g2-g1.crt ssl_cert = </etc/pki/tls/certs/c1e209e3ca2e1e5.crt ssl_key = </etc/pki/tls/private/gcrcnet.key userdb { driver = passwd } protocol pop3 { pop3_uidl_format = %08Xv%08Xu } ERROR Message from log Mar 15 10:14:03 MultiTronic6 dovecot: imap-login: Login: user=<wifi.adm>, method=LOGIN, rip=xx.xx.xx.xx, lip=yy.yy.yy.yy, mpid=5973, TLS Mar 15 10:14:03 MultiTronic6 dovecot: imap(wifi.adm): Error: chown(/home/wifi.adm/mail/.imap/INBOX, -1, 12(mail)) failed: Operation not permitted (egid=504(wifi.adm), group based on /var/mail/wifi.adm) Mar 15 10:14:03 MultiTronic6 dovecot: imap(wifi.adm): Error: mkdir(/home/wifi.adm/mail/.imap/INBOX) failed: Operation not permitted Mar 15 10:14:03 MultiTronic6 dovecot: imap(wifi.adm): Connection closed bytes=39/423 Thank You, Ken Zachreson IT Manager, Grand Canyon Resort Corp 928-769-2629 928-769-2638 Help Desk

1 0

Unable to create needed folders
by Ken Zachreson 15 Mar '17

15 Mar '17

Greetings, The log reports that a process cannot create the needed folders. Please review and tell me what I have done wrong. dovecot 2.0.9 # 2.0.9: /etc/dovecot/dovecot.conf doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:85: protocol { ssl_listen } has been replaced by service { inet_listener { address } } # OS: Linux 2.6.32-642.15.1.el6.x86_64 x86_64 CentOS release 6.8 (Final) auth_mechanisms = plain login last_valid_gid = 520 last_valid_uid = 520 mail_location = mbox:~/mail/:INBOX=/var/mail/%u mbox_write_locks = fcntl passdb { args = dovecot driver = pam } protocols = imap service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imaps { address = * } } service pop3-login { inet_listener pop3s { address = * } } ssl_ca = /etc/pki/tls/certs/gd_bundle-g2-g1.crt ssl_cert = </etc/pki/tls/certs/c1e209e3ca2e1e5.crt ssl_key = </etc/pki/tls/private/gcrcnet.key userdb { driver = passwd } protocol pop3 { pop3_uidl_format = %08Xv%08Xu } ERROR Message from log Mar 15 10:14:03 MultiTronic6 dovecot: imap-login: Login: user=<wifi.adm>, method=LOGIN, rip=xx.xx.xx.xx, lip=yy.yy.yy.yy, mpid=5973, TLS Mar 15 10:14:03 MultiTronic6 dovecot: imap(wifi.adm): Error: chown(/home/wifi.adm/mail/.imap/INBOX, -1, 12(mail)) failed: Operation not permitted (egid=504(wifi.adm), group based on /var/mail/wifi.adm) Mar 15 10:14:03 MultiTronic6 dovecot: imap(wifi.adm): Error: mkdir(/home/wifi.adm/mail/.imap/INBOX) failed: Operation not permitted Mar 15 10:14:03 MultiTronic6 dovecot: imap(wifi.adm): Connection closed bytes=39/423 Thank You, Ken Zachreson IT Manager, Grand Canyon Resort Corp 928-769-2629 928-769-2638 Help Desk

1 0

autocreate ONLY for new Users
by plataleas 15 Mar '17

15 Mar '17

Hi All We are currently migrating accounts to Dovecot. The existing accounts do have special folders with different names. (i.e. sent, sent-mail) The autocreate-function of "special folders" is useful. However we need this feature ONLY for new users. The existing accounts have a mapping for their own "special folders". There are discussions about this topic on the mailing list: /http://www.dovecot.org/list/dovecot/2014-August/097313.html https://dovecot.org/list/dovecot/2016-May/104296.html/ Did someone manage to implement this ? Are there workarounds? Thanks and regards plataleas

3 6

Custom cache_key for passdb-sql
by Tom Sommer 15 Mar '17

15 Mar '17

The cache_key for the SQL-passdb should be created automatically, but for some reason the service (%s) is not part of the key, and I need it to be I've tried to set a manual cache_key, but that fails: Mar 15 11:54:02 auth: Fatal: sql /etc/dovecot/dovecot-sql.conf cache_key=%s%u%{real_ip}: Can't open configuration file /etc/dovecot/dovecot-sql.conf cache_key=%s%u%{real_ip}: No such file or directory passdb { args = /etc/dovecot/dovecot-sql.conf cache_key=%s%u%{real_ip} driver = sql } Is this not possible? -- Tom

1 0

welcome plugin
by David Mehler 14 Mar '17

14 Mar '17

Hello, If anyone is using the welcome plugin in dovecot 2.2.x to sent a one-time new welcome email to new users can I get a look at your configuration? I'm stuck, I create a user and the welcome action does not execute. If you've got a script to send the mail can I get a look at that as well? Thanks. Dave.

3 2

Users with extra mailbox: namespace/mailbox in userdb lookup?
by MRob 14 Mar '17

14 Mar '17

Hello, We have a need for some users to have an additional folder created and subscribed for them. Is is possible to return an override for the default "namespace inbox" containing the needed mailbox definitions in the userdb lookup for such users? If so, how would the userdb lookup result be formatted? Presumably as just one long string, but how would the setting be named given there can't be a space in it? Can I replace the space with an underscore, e.g. userdb_namespace_inbox = '{ mailbox Drafts { auto=subscribe special_use = \Drafts } mailbox Trash { auto=subscribe special_use = \Trash } }' Or is there some other way to do this?

4 11

strange behaviour of dovecot
by Masaharu Kawada 14 Mar '17

14 Mar '17

Dear dovecot-list, Dovecot gives the below error messages and those errors go away after running 'systemctl restart dovecot'(Restarting dovecot service)', however, the same happens after a while later(like after 300 mails delivered). --- master : Error : service(anvil) : Initial Status notification no received in 30 seconds, killing the process master : Error : service(log) : Initial Status notification no received in 30 seconds, killing the process master : Error : service(ssl-params) : Initial Status notification no received in 30 seconds, killing the process master : Error : service(log) : child 3703 killed with signal 9 --- then the log process is not there so that no mail log gets captured in maillog: --- root 28036 0.0 0.0 19864 1604 ? Ss 11:45 0:00 /usr/sbin/dovecot -F dovecot 28074 0.0 0.0 9312 1000 ? S 11:46 0:00 dovecot/anvil root 28075 0.0 0.0 12324 2084 ? S 11:46 0:00 dovecot/config --- Does this have something to do with any limitation in dovecot configuration? If anyone in the list ever has similar or same experience, please give me a clue that shows where to look at from here. Thanks, -- Masaharu Kawada

2 2

Solr 6.4.2
by Daniel Miller 14 Mar '17

14 Mar '17

For those trying Solr - version 6.4.2 fixed a number of bugs in the 6.4.x series. Speed is incredible. If you haven't tried it - I strongly recommend it! And, using the included installation script (with Solr) combined with my schema - installation was painless. I'm now running in single core mode without issues (running in cloud mode with a single core seemed silly anyway). -- Daniel

1 0

Re: First time setting up Director Woes
by Jesse C. Smillie 13 Mar '17

13 Mar '17

Working again. Explains a lot actually. Inital box I was experimenting on PAM was already setup and had worked. That error I got caught up in was with SSSD and PAM wasn't working. Fixing the error shot myself in the foot in other ways. Thank you! -Jesse C. Smillie On 3/13/17 4:38 PM, Aki Tuomi wrote: >> On March 13, 2017 at 10:21 PM "Jesse C. Smillie" <jsmillie(a)gatewayk12.org> wrote: >> >> >> I'm trying to setup our first director server. Trying to keep the >> initial config simple really as just maybe a proof of concept and its >> got me pulling my hair out today. Initially I just tried to convert one >> of my already running IMAP servers to be a director just to see if I >> could do it. I modified the configs as it appeared they needed based on: >> >> https://wiki2.dovecot.org/Director >> http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/Proxy >> >> But it didn't work. Kept serving files locally instead of proxing off >> to the servers listed. > Remove this: > >> passdb { >> driver = pam >> } > Aki

1 0

First time setting up Director Woes
by Jesse C. Smillie 13 Mar '17

13 Mar '17

I'm trying to setup our first director server. Trying to keep the initial config simple really as just maybe a proof of concept and its got me pulling my hair out today. Initially I just tried to convert one of my already running IMAP servers to be a director just to see if I could do it. I modified the configs as it appeared they needed based on: https://wiki2.dovecot.org/Director http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/Proxy But it didn't work. Kept serving files locally instead of proxing off to the servers listed. -----------------------------------------------------------------------------------------------==== Mar 13 15:58:27 fugitoid dovecot: imap-login: Login: user=<makaveli>, method=PLAIN, rip=10.0.15.114, lip=10.1.12.221, mpid=3022, TLS, session=<YCCCIqJKmMIKAA9y> Mar 13 15:58:27 fugitoid dovecot: imap(makaveli): Error: User initialization failed: Namespace '': mkdir(/home/makaveli/Maildir) failed: Permission denied (euid=2605(makaveli) egid=1100(<unknown>) missing +w perm: /home, dir owned by 0:0 mode=0755) Mar 13 15:58:27 fugitoid dovecot: imap: Error: Invalid user settings. Refer to server log for more information. Thinking it was just something with that box (still running Dovecot 2.2.10 as well) I moved on to setup a new Centos7 server and go through the setup again and initially it was working for a few hours. -----------------------------------------------------------------------------------------------==== Mar 13 12:19:03 fugitoid dovecot: imap-login: proxy(makaveli): started proxying to 10.1.12.228:993: user=<makaveli>, method=PLAIN, rip=10.0.15.114, lip=10.1.12.221, TLS, session=<CzfaEZ9KXgAKAA9y> Then at some point I got side tracked by a pam error message and when I came back from working that out Dovecot was trying to authenticate users locally again. I really feel like I'm missing something here, but for the life of me I can't figure it out. Any ideas would be welcome. Thanks. # 2.2.28 (bed8434): /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-514.10.2.el7.x86_64 x86_64 CentOS Linux release 7.3.1611 (Core) auth_mechanisms = plain login default_client_limit = 1024 director_mail_servers = 10.1.12.229 10.1.12.228 10.1.12.225 director_servers = 10.1.12.221:9090 mail_fsync = always mail_nfs_storage = yes mbox_write_locks = fcntl 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 { args = proxy=y nopassword=y ssl=any-cert driver = static } protocols = imap service director { fifo_listener login/proxy-notify { mode = 0666 } inet_listener { port = 9090 } unix_listener director-userdb { mode = 0600 } unix_listener login/director { mode = 0666 } } service imap-login { executable = imap-login director inet_listener imaps { port = 993 ssl = yes } } ssl = required ssl_ca = </etc/GoDaddy_SSL/gd_bundle.crt ssl_cert = </etc/GoDaddy_SSL/gatewayk12.cert ssl_cipher_list = ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA ssl_dh_parameters_length = 2048 ssl_key = # hidden, use -P to show it ssl_protocols = TLSv1 TLSv1.1 TLSv1.2 userdb { driver = passwd }

2 1

change mdbox rotation size?
by Dave McGuire 13 Mar '17

13 Mar '17

Hey folks. Is it possible/advisable to change the mdbox rotation size on an operational mdbox spool? If so, is there any way to "repackage" (for the lack of a better term) an existing mdbox spool to a different rotation size? Thanks, -Dave -- Dave McGuire, AK4HZ New Kensington, PA

1 0

Dict protocol changes string
by Nagy, Attila 13 Mar '17

13 Mar '17

Hi, I use pass and userdb with dict protocol in a similar way: key passdb { key = passdb^MAuth-User: %u^MAuth-Pass: %w^MAuth-Protocol: %s^MClient-IP: %r format = json } (^M is an \r character, inserted with vi CTRL-v + enter) Until 2.2.24 this has worked, but 2.2.25 seems to convert that ASCII 13 into an ASCII 1 and an "r". Python printout from what I get with 2.2.25: 'Lshared/passdb\x01rAuth-User: user\x01rAuth-Pass: pass\x01rAuth-Protocol: pop3\x01rClient-IP: 1.2.3.4' Is this change intentional? Why?

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dovecot: master: Dovecot v2.2.22 (fe789d2) starting up for imap, pop3 (core dumps disabled)
by Basdove 13 Mar '17

13 Mar '17

Hi. Always the below log appraring log under /var/log/mail.log Is this right or How to resolve it. Ubuntu 16.04.2 LTS server edition Mar 13 06:13:20 home dovecot: master: Dovecot v2.2.22 (fe789d2) starting up for imap, pop3 (core dumps disabled) Mar 13 06:13:30 home postfix/master[1495]: daemon started -- version 3.1.0, configuration /etc/postfix dovecot -n output -------------------------------------------------------------------- # 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.13 (7b14904) # OS: Linux 4.4.0-64-generic x86_64 Ubuntu 16.04.2 LTS auth_mechanisms = plain login mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_privileged_group = mail 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 } protocols = " imap pop3" service auth-worker { user = root } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } ssl_ca = >/etc/ssl/certs/01.pem ssl_cert = </etc/ssl/certs/cacert.pem ssl_key = </etc/ssl/private/cakey.pem ssl_key_password = # hidden, use -P to show it ssl_protocols = TLSv1 ssl_verify_client_cert = yes userdb { driver = passwd } ---------------------------------------------------------- Thanhs & Regards Baskaranand

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I’m slightly shocked
by dovecot 11 Mar '17

11 Mar '17

Hey! Just take a look at that crazy stuff, I'm slightly shocked! Here it is http://web.wacinema.com/6869 Yours, dovecot

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virtual all mails folder in dovecot
by Rahul Singh Badyal 11 Mar '17

11 Mar '17

I have Centos 7 mail server installed with dovecot and postfix with MariaDB. I am trying to add a virtual All Mails folder for every user so that they can have all mails such as inbox, sent in a single folder, something like gmail. Please help me for this. *Regards,* *Rahul*

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(no subject)
by Rahul Singh Badyal 11 Mar '17

11 Mar '17

I have Centos 7 mail server installed with dovecot and postfix with MariaDB. I am trying to add a virtual All Mails folder for every user so that they can have all mails such as inbox, sent in a single folder, something like gmail. Please help me for this. *Regards,* *Rahul*

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new article
by dovecot 11 Mar '17

11 Mar '17

Hi, There is an article I've written recently and I wanted to hear your thoughts about it, please read it here http://example.wowcinema.com/6f6e Best regards, dovecot

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v2.2.28 released
by Timo Sirainen 10 Mar '17

10 Mar '17

http://dovecot.org/releases/2.2/dovecot-2.2.28.tar.gz http://dovecot.org/releases/2.2/dovecot-2.2.28.tar.gz.sig * director: "doveadm director move" to same host now refreshes user's timeout. This allows keeping user constantly in the same backend by just periodically moving the user there. * When new mailbox is created, use initially INBOX's dovecot.index.cache caching decisions. * Expunging mails writes GUID to dovecot.index.log now only if the GUID is quickly available from index/cache. * pop3c: Increase timeout for PASS command to 5 minutes. * Mail access errors are no longer ignored when searching or sorting. With IMAP the untagged SEARCH/SORT reply is still sent the same as before, but NO reply is returned instead of OK. + Make dovecot.list.index's filename configurable. This is needed when there are multiple namespaces pointing to the same mail root (e.g. lazy_expunge namespace for mdbox). + Add size.virtual to dovecot.index when folder vsizes are accessed (e.g. quota=count). This is mainly a workaround to avoid slow quota recalculation performance when message sizes get lost from dovecot.index.cache due to corruption or some other reason. + auth: Support OAUTHBEARER and XOAUTH2 mechanisms. Also support them in lib-dsasl for client side. + auth: Support filtering by SASL mechanism: passdb { mechanisms } + Shrink the mail processes' memory usage by not storing settings duplicated unnecessarily many times. + imap: Add imap_fetch_failure setting to control what happens when FETCH fails for some mails (see example-config). + imap: Include info about last command in disconnection log line. + imap: Created new SEARCH=X-MIMEPART extension. It's currently not advertised by default, since it's not fully implemented. + fts-solr: Add support for basic authentication. + Cassandra: Support automatically retrying failed queries if execution_retry_interval and execution_retry_times are set. + doveadm: Added "mailbox path" command. + mail_log plugin: If plugin { mail_log_cached_only=yes }, log the wanted fields only if it doesn't require opening the email. + mail_vsize_bg_after_count setting added (see example-config). + mail_sort_max_read_count setting added (see example-config). + pop3c: Added pop3c_features=no-pipelining setting to prevent using PIPELINING extension even though it's advertised. - Index files: day_first_uid wasn't updated correctly since v2.2.26. This caused dovecot.index.cache to be non-optimal. - imap: SEARCH/SORT may have assert-crashed in client_check_command_hangs - imap: FETCH X-MAILBOX may have assert-crashed in virtual mailboxes. - imap: Running time in tagged command reply was often wrongly 0. - search: Using NOT n:* or NOT UID n:* wasn't handled correctly - director: doveadm director kick was broken - director: Fix crash when using director_flush_socket - director: Fix some bugs when moving users between backends - imapc: Various error handling fixes and improvements - master: doveadm process status output had a lot of duplicates. - autoexpunge: If mailbox's rename timestamp is newer than mail's save-timestamp, use it instead. This is useful when autoexpunging e.g. Trash/* and an entire mailbox is deleted by renaming it under Trash to prevent it from being autoexpunged too early. - autoexpunge: Multiple processes may have been trying to expunge the same mails simultaneously. This was problematic especially with lazy_expunge plugin. - auth: %{passdb:*} was empty in auth-worker processes - auth-policy: hashed_password was always sent empty. - dict-sql: Merge multiple UPDATEs to a single statement if possible. - fts-solr: Escape {} chars when sending queries - fts: fts_autoindex_exclude = \Special-use caused crashes - doveadm-server: Fix leaks and other problems when process is reused for multiple requests (service_count != 1) - sdbox: Fix assert-crash on mailbox create race - lda/lmtp: deliver_log_format values weren't entirely correct if Sieve was used. especially %{storage_id} was broken. - lmtp_user_concurrency_limit didn't work if userdb changed username

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