- dovecot - dovecot.org

Problem with LMTP
by Angel L. Mateo 05 Jun '17

05 Jun '17

Hello, I'm having a problem with LMTP in a proxy server since I upgraded from 2.1.16 to 2.2.28. In my logs I have: Apr 26 12:54:17 musio12 dovecot: lmtp(2082): Fatal: master: service(lmtp): child 2082 killed with signal 11 (core dumped). As far as I could check the message is delivered in a later connection. I have enabled core dumped files, but how could I debug it? -- 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 11

Retrieving mail from read-only mdbox
by Mark Moseley 05 Jun '17

05 Jun '17

This is a 'has anyone run into this and solved it' post. And yes, I've been reading and re-reading TFM but without luck. The background is that I'm working on tooling before we start a mass maildir->mdbox conversion. One of those tools is recovering mail from backups (easy as pie with maildir). We've got all of our email on Netapp file servers. They have nice snapshotting but the snapshots are, of course, readonly. My question: is there a doveadm command that will allow for email to be retrieved from a readonly mdbox, either directly (like manipulating the mdbox files directly) or by doveadm talking to the dovecot processes? Ideally, there'd be something like doveadm dump, but that could dump selected message contents. I've tried using IMAP with mail_location pointed at the snapshot, but, though I can get a listing of emails in the mailbox, the fetch fails when dovecot can't write-lock dovecot.index.log. If anyone has gotten something similar to work, I'd love to hear about it. A working IMAP setup would be the ideal, since it's more easily automatible (but I'll take whatever I can get). Any and all hints are most welcome!

4 4

10-ssl.conf: Unknown setting: ssl / debian 1:2.2.13-12~deb8u
by Sophie Loewenthal 05 Jun '17

05 Jun '17

Hi, I've been trying to get dovecot2 running and kept having this error message: May 13 13:38:32 mail systemd[1]: Started Dovecot IMAP/POP3 email server. May 13 13:38:32 mail dovecot[2178]: doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-ssl.conf line 61: Unknown setting: ssl # dovecot --build-options Build options: ioloop=epoll notify=inotify ipv6 openssl io_block_size=8192 Mail storages: shared mdbox sdbox maildir mbox cydir imapc pop3c raw fail SQL driver plugins: mysql postgresql sqlite Passdb: checkpassword ldap pam passwd passwd-file shadow sql Userdb: checkpassword ldap(plugin) nss passwd prefetch passwd-file sql # openssl version OpenSSL 1.0.1t 3 May 2016 This package is from from Debian repos with version number 1:2.2.13-12~deb8u amd64 In case I had inadvertently entered some invisible charaters in 10-ssl.conf, I deleted and typed this out. Not copy-pasted: # >10-ssl.conf # cat 10-ssl.conf # echo 'ssl = required' >10-ssl.conf # echo 'ssl_key = </etc/ssl/private/xxx.key' >>10-ssl.conf # echo 'ssl_cert = </etc/ssl/private/xxx.pem' >>10-ssl.conf I’ve done usual searching online for a week and read some dox, but cannot see what I’ve missed out. Any ideas? Please? Thanks, Sophie

4 14

quota clone + mysql + duplicate key
by Dimos Alevizos 05 Jun '17

05 Jun '17

I'm trying to setup quota clone with mysql on dovecot 2.2.29.1. I see in the wiki that the table is always updated to the new value (https://wiki.dovecot.org/Plugins/QuotaClone) : > Every time quota is updated, the value is updated to the cloned dict. > There are race conditions with it so the quota may not always be 100% > correct. The old value is always replaced with the new one though (not > just incremented/decremented) so the cloned quota is never too much wrong. But the queries I see don't agree : 1186029 Query BEGIN 1186029 Query INSERT INTO quota (bytes,messages,username) VALUES (25002030,226,'user(a)domain.tld') ON DUPLICATE KEY UPDATE bytes=bytes+25002030,messages=messages+226 1186029 Query COMMIT Is it a bug or am I missing something in my configuration ? The relevant part of the config : dict { sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } plugin { quota = count:User quota quota_clone_dict = proxy::sqlquota quota_exceeded_message = Quota for this mail account has been exceeded, please try again later. quota_grace = 1M quota_vsizes = yes } map { pattern = priv/quota/storage table = quota username_field = username value_field = bytes } map { pattern = priv/quota/messages table = quota username_field = username value_field = messages } Dimos

1 0

Panic: file dsync-brain-mailbox.c: line 814 ...
by Sander Lepik 04 Jun '17

04 Jun '17

Hi! We have 2 servers replicating each other and after upgrade to 2.2.26.0 we are seeing this in the logs: Primary server: Nov 17 09:37:39 mailhost01 dovecot: dsync-server(user(a)domain.ee): Panic: file dsync-brain-mailbox.c: line 814 (dsync_brain_slave_recv_mailbox): assertion failed: (memcmp(dsync_box->mailbox_guid, local_dsync_box.mailbox_guid, sizeof(dsync_box->mailbox_guid)) == 0) Nov 17 09:37:39 mailhost01 dovecot: dsync-server(user(a)domain.ee): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x9438e) [0x7f3ccceb238e] -> /usr/lib/dovecot/libdovecot.so.0(+0x9447c) [0x7f3ccceb247c] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f3ccce4ba4e] -> dovecot/doveadm-server(dsync_brain_slave_recv_mailbox+0x3d8) [0x7f3ccd8f66f8] -> dovecot/doveadm-server(dsync_brain_run+0x650) [0x7f3ccd8f4110] -> dovecot/doveadm-server(+0x4143b) [0x7f3ccd8f443b] -> dovecot/doveadm-server(+0x5735f) [0x7f3ccd90a35f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7f3cccec6bdc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10a) [0x7f3cccec809a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7f3cccec6c65] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f3cccec6e08] -> dovecot/doveadm-server(+0x26b99) [0x7f3ccd8d9b99] -> dovecot/doveadm-server(+0x28efc) [0x7f3ccd8dbefc] -> dovecot/doveadm-server(+0x3daba) [0x7f3ccd8f0aba] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7f3cccec6bdc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10a) [0x7f3cccec809a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7f3cccec6c65] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f3cccec6e08] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f3ccce51f53] -> dovecot/doveadm-server(main+0x19f) [0x7f3ccd8ccdef] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f3ccca94b45] -> dovecot/doveadm-server(+0x19ea6) [0x7f3ccd8ccea6] Nov 17 09:37:39 mailhost01 dovecot: dsync-server(user(a)domain.ee): Fatal: master: service(doveadm): child 42621 killed with signal 6 (core dumps disabled) Secondary server: Nov 17 09:37:40 secondarymailhost01 dovecot: dsync-local(user(a)domain.ee): Error: read(mailhost01.domeen.ee) failed: EOF (last sent=mailbox, last recv=mailbox_state) I'm guessing that it happens during automatic full resync, but that's just guessing. OS is Debian 8 (x86_64) and Dovecot is recompiled from Debian's unstable repository. -- Sander

2 2

ACL File
by Bobber 02 Jun '17

02 Jun '17

I'm getting inconsistent behavior from my acl file. I have an acl vfile configured with this: > Jobs$* anyone lrwikst > $* user=bob.wooldridge(a)edm-inc.com lrwstipekxa > $* user=michael.user(a)edm-inc.com lrwstipekxa > Jobs$* user=bob.wooldridge(a)edm-inc.com lrwstipekxa > Jobs$* user=michael.user(a)edm-inc.com lrwstipekxa The Jobs folder is a public shared folder. I want just the two users to be able to have complete control of anything in the shared Jobs folder. Currently, user bob is able to move folders to sub folders but user michael is sometimes able to move folders but mostly not. I am using Thunderbird as the mail client. Sometimes I can restart Thunderbird and it will allow one operation but subsequent operations error out with Thunderbird saying the user does not have permissions. Here's my doveconf -n: > # 2.2.30.1 (eebd877): /usr/local/etc/dovecot/dovecot.conf > # OS: Linux 3.16.0-0.bpo.4-amd64 x86_64 Debian 7.11 > auth_cache_size = 8 k > auth_debug = yes > first_valid_gid = 89 > first_valid_uid = 89 > last_valid_gid = 89 > last_valid_uid = 89 > listen = * > log_path = /dev/stderr > login_greeting = IMAP service for edm-inc.com clients. > mail_location = maildir:~/Maildir > mail_plugins = " listescape acl" > namespace { > inbox = yes > location = > prefix = > separator = $ > type = private > } > namespace { > location = maildir:/home/vpopmail/domains/edm-inc.com/public > prefix = Jobs$ > separator = $ > subscriptions = no > type = public > } > passdb { > args = cache_key=%u%s > driver = vpopmail > } > plugin { > acl = vfile:/usr/local/etc/dovecot/acls:cache_secs=300 > } > protocols = imap > service auth { > user = root > vsz_limit = 64 M > } > service imap-login { > process_limit = 150 > service_count = 1 > } > ssl_cert = </etc/ssl/certs/mail_edm-inc_com.pem > ssl_key = # hidden, use -P to show it > userdb { > driver = vpopmail > } > userdb { > driver = vpopmail > } > protocol imap { > mail_plugins = " listescape acl imap_acl" > } -- *Bob Wooldridge* Blog: http://kc0dxf.net/blog/

1 0

updated to dove 2.30.1 and still the same error ....
by dovecot＠jeffandjessi.com 02 Jun '17

02 Jun '17

Well.. updated to 2.30.1 hoping it would fix this mysterious seg fault ... ,but nope ... auth: Fatal: master: service(auth): child 14502 killed with signal 11 (core dumped) the core dump shows gdb) bt #0 0x00007f7ff4a06bee in ?? () #1 0x00007f7ff74a4f44 in io_loop_handle_remove () from /usr/local/lib/dovecot/libdovecot.so.0 #2 0x00007f7ff74a3765 in io_remove_full () from /usr/local/lib/dovecot/libdovecot.so.0 #3 0x00007f7ff7438b62 in master_service_deinit () from /usr/local/lib/dovecot/libdovecot.so.0 #4 0x00000000004307ef in main () no symbols are available as this is a pkg install.... so whats next? time to dump dovecot after running it for 10 years? Can't believe no one else is seeing this .... the symtoms are dovecot starts up fine when a client connects, they authorize just fine and download email .... about a minute later the auth process crashes and the entire process starts over .... so how do you trouble shoot this ... it sounds like a coding issue some place .... anyone ?

2 1

Problem with dsync backup
by Sergio Belkin 02 Jun '17

02 Jun '17

Hi folks, Firstly, the first: dovecot --version 2.2.10 dovecot -n # 2.2.10: /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-514.16.1.el7.x86_64 x86_64 CentOS Linux release 7.3.1611 (Core) auth_debug = yes auth_krb5_keytab = /var/lib/dovecot/krb5.keytab auth_master_user_separator = * auth_mechanisms = plain login gssapi auth_verbose = yes debug_log_path = /dev/null default_process_limit = 400 disable_plaintext_auth = no first_valid_uid = 988 imapc_features = rfc822.size fetch-headers imapc_host = mail.example-aid.com imapc_master_user = osstand imapc_password = secret imapc_ssl = starttls imapc_ssl_verify = no imapc_user = %u import_environment = TZ KRB5CCNAME last_valid_uid = 988 lmtp_save_to_detail_mailbox = yes mail_gid = vmail mail_location = maildir:~/Maildir mail_plugins = " acl listescape fts fts_lucene" mail_prefetch_count = 20 mail_shared_explicit_inbox = yes mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave imapflags mbox_write_locks = fcntl namespace PUBLIC { list = children location = maildir:/var/lib/nethserver/vmail/vmail/Maildir:INDEXPVT=~/Maildir/public prefix = Public/ separator = / subscriptions = no type = public } namespace ROOT { inbox = yes location = mailbox Drafts { auto = no special_use = \Drafts } mailbox Sent { auto = no special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Trash { auto = no special_use = \Trash } prefix = separator = / subscriptions = yes type = private } namespace SHARED_USERS { disabled = no list = children location = maildir:/var/lib/nethserver/vmail/%%u/Maildir:INDEXPVT=~/Maildir/shared/%%u prefix = Shared/%%n(a)example.local/ separator = / subscriptions = no type = shared } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes } passdb { args = dovecot-master driver = pam master = yes } passdb { args = /etc/dovecot/deny.passwd deny = yes driver = passwd-file } passdb { args = max_requests=100 failure_show_msg=yes blocking=yes driver = pam } plugin { acl = vfile acl_shared_dict = file:/var/lib/nethserver/vmail/shared-mailboxes.db antispam_backend = MAILTRAIN antispam_mail_notspam = ham antispam_mail_sendmail = /usr/libexec/nethserver/spam-training.sh antispam_mail_sendmail_args = %u antispam_mail_spam = spam antispam_spam = Junk antispam_trash = Trash fts = lucene fts_lucene = whitespace_chars=@. sieve_after = /var/lib/nethserver/sieve-scripts/after.sieve sieve_before = /var/lib/nethserver/sieve-scripts/before.sieve sieve_extensions = +imapflags } protocols = imap lmtp sieve pop3 service anvil { client_limit = 1603 } service auth { client_limit = 2000 unix_listener /var/spool/postfix/private/smtpauth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0660 } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 } unix_listener imap-ipc { group = root mode = 0600 user = $default_internal_user } } service imap-postlogin { executable = script-login /usr/libexec/nethserver/dovecot-postlogin user = $default_internal_user } service imap { executable = imap imap-postlogin } service lmtp { client_limit = 1 unix_listener lmtp { group = vmail mode = 0660 user = vmail } user = vmail } service managesieve { executable = managesieve sieve-postlogin } service pop3-postlogin { executable = script-login /usr/libexec/nethserver/dovecot-postlogin user = $default_internal_user } service pop3 { executable = pop3 pop3-postlogin } service sieve-postlogin { executable = script-login /usr/libexec/nethserver/dovecot-postlogin user = $default_internal_user } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = username_format=%Ln /etc/dovecot/imap.passwd driver = passwd-file override_fields = uid=988 gid=985 home=/var/lib/nethserver/vmail/%Ln } userdb { driver = passwd override_fields = uid=988 gid=985 home=/var/lib/nethserver/vmail/%u skip = found } protocol imap { mail_max_userip_connections = 12 mail_plugins = " acl listescape fts fts_lucene imap_acl antispam" } protocol lmtp { mail_plugins = " acl listescape fts fts_lucene sieve" } When I try to import a mailbox from an Exchange server, this is the output: time dsync -D -v backup -R -u sergio.zuniga(a)example.local imapc: |& tee /tmp/errors2 doveadm(root): Debug: Loading modules from directory: /usr/lib64/dovecot doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib20_fts_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib20_listescape_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib21_fts_lucene_plugin.so doveadm(root): Debug: Loading modules from directory: /usr/lib64/dovecot/doveadm doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so doveadm(root): Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) doveadm(root): Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_quota_plugin.so: undefined symbol: quota_user_module (this is usually intentional, so just ignore this message) doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_sieve_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_lucene_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_plugin.so doveadm(sergio.zuniga(a)example.local): Debug: Effective uid=988, gid=985, home=/var/lib/nethserver/vmail/sergio.zuniga(a)example.local doveadm(sergio.zuniga(a)example.local): Debug: Namespace ROOT: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir doveadm(sergio.zuniga(a)example.local): Debug: maildir++: root=/var/lib/nethserver/vmail/sergio.zuniga(a)example.local/Maildir, index=, indexpvt=, control=, inbox=/var/lib/nethserver/vmail/sergio.zuniga(a)example.local/Maildir, alt= doveadm(sergio.zuniga(a)example.local): Debug: acl: initializing backend with data: vfile doveadm(sergio.zuniga(a)example.local): Debug: acl: acl username = sergio.zuniga(a)example.local doveadm(sergio.zuniga(a)example.local): Debug: acl: owner = 1 doveadm(sergio.zuniga(a)example.local): Debug: acl vfile: Global ACL directory: (none) doveadm(sergio.zuniga(a)example.local): Debug: Namespace SHARED_USERS: type=shared, prefix=Shared/%n(a)example.local/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=maildir:/var/lib/nethserver/vmail/%u/Maildir:INDEXPVT=~/Maildir/shared/%u doveadm(sergio.zuniga(a)example.local): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt= doveadm(sergio.zuniga(a)example.local): Debug: fts: Indexes disabled for namespace 'Shared/%n(a)example.local/' doveadm(sergio.zuniga(a)example.local): Debug: acl: initializing backend with data: vfile doveadm(sergio.zuniga(a)example.local): Debug: acl: acl username = sergio.zuniga(a)example.local doveadm(sergio.zuniga(a)example.local): Debug: acl: owner = 0 doveadm(sergio.zuniga(a)example.local): Debug: acl vfile: Global ACL directory: (none) doveadm(sergio.zuniga(a)example.local): Debug: Namespace PUBLIC: type=public, prefix=Public/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=maildir:/var/lib/nethserver/vmail/vmail/Maildir:INDEXPVT=~/Maildir/public doveadm(sergio.zuniga(a)example.local): Debug: maildir++: root=/var/lib/nethserver/vmail/vmail/Maildir, index=, indexpvt=/var/lib/nethserver/vmail/sergio.zuniga(a)example.local/Maildir/public, control=, inbox=, alt= doveadm(sergio.zuniga(a)example.local): Debug: acl: initializing backend with data: vfile doveadm(sergio.zuniga(a)example.local): Debug: acl: acl username = sergio.zuniga(a)example.local doveadm(sergio.zuniga(a)example.local): Debug: acl: owner = 0 doveadm(sergio.zuniga(a)example.local): Debug: acl vfile: Global ACL directory: (none) doveadm(sergio.zuniga(a)example.local): Debug: acl vfile: file /var/lib/nethserver/vmail/sergio.zuniga(a)example.local/Maildir/dovecot-acl not found doveadm(sergio.zuniga(a)example.local): Debug: acl vfile: file /var/lib/nethserver/vmail/sergio.zuniga(a)example.local/Maildir/.Sent/dovecot-acl not found doveadm(sergio.zuniga(a)example.local): Debug: Namespace : Using permissions from /var/lib/nethserver/vmail/sergio.zuniga(a)example.local/Maildir: mode=0700 gid=default dsync(sergio.zuniga(a)example.local): Debug: Effective uid=988, gid=985, home=/var/lib/nethserver/vmail/sergio.zuniga(a)example.local dsync(sergio.zuniga(a)example.local): Debug: Namespace ROOT: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=imapc: dsync(sergio.zuniga(a)example.local): Debug: imapc(mail.example.com:143): Looking up IP address dsync(sergio.zuniga(a)example.local): Debug: imapc(mail.example.com:143): Connecting to 192.168.50.1:143 dsync(sergio.zuniga(a)example.local): Debug: imapc(mail.example.com:143): Server capabilities: IMAP4 IMAP4rev1 LOGINDISABLED STARTTLS IDLE NAMESPACE LITERAL+ dsync(sergio.zuniga(a)example.local): Debug: imapc(mail.example.com:143): Starting SSL handshake dsync(sergio.zuniga(a)example.local): Debug: imapc(mail.example.com:143): SSL handshake successful, ignoring invalid certificate: SSL certificate not received dsync(sergio.zuniga(a)example.local): Debug: imapc(mail.example.com:143): Server capabilities: IMAP4 IMAP4rev1 AUTH=GSSAPI AUTH=PLAIN IDLE NAMESPACE LITERAL+ dsync(sergio.zuniga(a)example.local): Debug: imapc(mail.example.com:143): Authenticating as neth.stand for user sergio.zuniga(a)example.local dsync(sergio.zuniga(a)example.local): Error: imapc(mail.example.com:143): Authentication failed: AUTHENTICATE failed. dsync(sergio.zuniga(a)example.local): Debug: imapc(mail.example.com:143): Disconnected dsync(sergio.zuniga(a)example.local): Error: imapc: Command failed: Disconnected from server dsync(sergio.zuniga(a)example.local): Error: user sergio.zuniga(a)example.local: Initialization failed: Namespace '': Mailbox list driver imapc: Failed to access imapc backend Also, mailllog has a lot of lines as of: dovecot: auth: passwd-file(john.doe(a)infoestructura.local,127.0.0.1,<qRwxrulQ/gB/AAAB>): unknown user Please could you help to know where is the error? Thanks in advance!! -- -- Sergio Belkin LPIC-2 Certified - http://www.lpi.org

2 1

Re: Retrieving mail from read-only mdbox
by Joseph Tam 01 Jun '17

01 Jun '17

> I've tried using IMAP with mail_location pointed at the snapshot, but, > though I can get a listing of emails in the mailbox, the fetch fails when > dovecot can't write-lock dovecot.index.log. I've thought about doing this someday (adding snapshots to a user's namespace) but never got around to doing it. Snapshots get rotated (e.g. hourly.1 -> hourly.2 -> etc.) so every hour, so any indices produced gets invalidated. You would need to generate MEMORY indices to create it on the fly. Something like namespace snapshots { location = ...:INDEX==MEMORY ... } I'm not sure how dovecot would react when NetApp pulls the rug out from under one of the hourly snapshots and replace it with the next hour's version. Joseph Tam <jtam.home(a)gmail.com>

3 2

SSL problem - no banner
by Marcio Merlone 01 Jun '17

01 Jun '17

Hi, I am running dovecot 2.2.22-1ubuntu2.4 on a ubuntu 16.04 server. It has a valid Letsencrypt certificate but the problem also happens with a self-digned one. Only openssl s_client -connect localhost:993 works fine and fast, while all MUA's and telnet does not. Telnet timeouts waiting for banner after a minute or so: root@netuno:~# openssl s_client -connect localhost:993 CONNECTED(00000003) depth=2 O = Digital Signature Trust Co., CN = DST Root CA X3 verify return:1 depth=1 C = US, O = Let's Encrypt, CN = Let's Encrypt Authority X3 verify return:1 (...) Start Time: 1496081321 Timeout : 300 (sec) Verify return code: 0 (ok) --- * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot ready. 0 logout * BYE Logging out 0 OK Logout completed. closed root@netuno:~# telnet localhost 993 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. (about 1 minute later...) Connection closed by foreign host. root@netuno:~# I Have enabled verbose_ssl = yes and mail_debug = yes but no useful info got to logs. Has anyone seen this? Any hint? Thanks, best regards. -- *Marcio Merlone*

3 3

Two domains, same users
by Sandbox 01 Jun '17

01 Jun '17

Hi, I have two LDAP domains, which has some equal users, eg: abc(a)domain1.com abc(a)domain2.com I sat up this config: domain1 users maildirs are stored in /home/vmail/username domain2 users maildirs are stored in /home/vmail/domain2/username This works fine except one thing: i cant set up the ldap query to choose the correct maildir if the user names are equal. Is it possible to use a user_filter which will choose the correct maildir and user/domain from the email address? My current ldap.conf for domain1: hosts = ldap.domain1.com base = ou=People,dc=domain1,dc=com ldap_version = 3 user_attrs = uid=user user_filter = (uid=%n) pass_attrs = uid=user,userPassword=password pass_filter = (uid=%n) default_pass_scheme = MD5 and for domain2: hosts = ldap.domain2.com base = ou=People,dc=domain2,dc=com ldap_version = 3 user_attrs = \ =mail=maildir:/home/vmail/%{ldap:departmentNumber)/%n/Maildir user_filter = (uid=%n) pass_attrs = uid=%n,userPassword=password pass_filter = (uid=%n) default_pass_scheme = MD5 Thanks, Robert

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Re: v2.2.30 released
by Joseph Tam 01 Jun '17

01 Jun '17

Timo wrote: >> (Lots of this ...) >> May 26 15:22:50 server dovecot: pop3(user): Warning: Transaction log file /{cachedir}/dovecot.index.log was locked for 43 seconds (rotating while syncing) >> May 27 16:57:18 server dovecot: imap(user): Warning: Transaction log file /{cachedir}/dovecot.index.log was locked for 105 seconds (Mailbox was synchronized) > > Not really an error, just bad performance. Probably happens when a user is doing I/O on their large INBOX's via NFS, and bogging down. Thanks for explaining this. Joseph Tam <jtam.home(a)gmail.com>

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sieve folders in maildir with imap: not a directory not fixed with maildir_stat_dirs = yes
by David Gessel 01 Jun '17

01 Jun '17

As my logs fill up with "imap(user(a)domain.com): Error: stat(/mail/doman.com/user//.dovecot.sieve/tmp) failed: Not a directory" errors, I followed the advice at https://wiki2.dovecot.org/VirtualUsers/Home and https://dovecot.org/list/dovecot/2016-June/104403.html and set in /usr/local/etc/dovecot/conf.d/10-mail.conf # By default LIST command returns all entries in maildir beginning with a dot. # Enabling this option makes Dovecot return only entries which are directories. # This is done by stat()ing each entry, so it causes more disk I/O. # (For systems setting struct dirent->d_type, this check is free and it's # done always regardless of this setting) maildir_stat_dirs = yes My mailbox format reads "mail_location = maildir:~:CONTROL=/var/no-quota/%u:INDEX=MEMORY" The error is factually correct, but there is not .dovecot.sieve/tmp directory or file as .dovecot.sieve is a file (the head sieve script that calls the subordinate scripts out of the /sieve directory. There is a tmp directory at /sieve/tmp/ drwxr----- 2 vmail vmail 2B May 31 04:14 tmp Any hints as to why this isn't working? It does seem like the right answer.

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Re: v2.2.30.1 released
by Eric Broch 01 Jun '17

01 Jun '17

Built on CentOS 7 without a hitch. On 5/31/2017 7:24 AM, Timo Sirainen wrote: > https://dovecot.org/releases/2.2/dovecot-2.2.30.1.tar.gz > https://dovecot.org/releases/2.2/dovecot-2.2.30.1.tar.gz.sig > > Due to some release process changes I didn't notice that one important bugfix wasn't included in the v2.2.30 release branch before I made the release. So fixing it here with v2.2.30.1. Also included another less important fix. > > - quota_warning scripts weren't working in v2.2.30 > - vpopmail still wasn't compiling > > Also I guess should mention that in v2.2.30+ the "script" service's protocol changed to a new version. If anyone had written their own script services (not using the included "script" binary) they would need some changes. I haven't heard of anyone having done that though. -- Eric Broch White Horse Technical Consulting (WHTC)

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Re: v2.2.30 released
by Joseph Tam 31 May '17

31 May '17

Timo wrote: >>> + If dovecot.index.cache corruption is detected, reset only the one >>> corrupted mail instead of the whole file. >> >> Is this a big performance win? I still have users with jumbo mailboxes >> who insist on direct mailbox file access using procmail or mail readers, >> which trigger index rebuilds when dovecot accesses them. > > What does Dovecot log then? But probably doesn't affect that. It's > only when Dovecot logs something about dovecot.index.cache corruption > that this helps. It logs stuff like this (Lots of this ...) May 26 15:22:50 server dovecot: pop3(user): Warning: Transaction log file /{cachedir}/dovecot.index.log was locked for 43 seconds (rotating while syncing) May 27 16:57:18 server dovecot: imap(user): Warning: Transaction log file /{cachedir}/dovecot.index.log was locked for 105 seconds (Mailbox was synchronized) (... and some this this ...) May 26 15:43:07 server dovecot: imap(user): Error: Next message unexpectedly corrupted in mbox file /var/mail/user at 9627641 (... but very rarely this ...) May 8 17:05:59 server dovecot: imap(user): Error: Corrupted index cache file /{cachedir}/dovecot.index.cache: Broken virtual size for mail UID 12032 in mailbox INBOX: read(/var/mail/user): FETCH BODY[] got too little data: 6199 vs 6201 >From what you say, the changes would only affects the latter, so no big change. Thanks for the info. Joseph Tam <jtam.home(a)gmail.com>

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shared folder and private index file problems
by Thomas Robers 31 May '17

31 May '17

Hello, I'm using Dovecot 2.2.30 with Pideonhole 0.4.18 and I'm having some problems, perhaps someone can give an hint on how to solve them. When I try to create a folder in the toplevel directory of a shared mailbox, i get a "permission denied" although I have the rights, example: 1.doveadm -f table acl rights -u bob(a)example.com shared/bill(a)example.com Rights lookup read write write-seen write-deleted insert post expunge create delete admin 2.doveadm mailbox create -u bob(a)example.com "shared/bill(a)example.com" doveadm(bob(a)example.com): Error: Can't create mailbox shared/bill(a)example.com: Permission denied Creating an subfolder of a folder which already exists works fine: 1.doveadm -f table acl rights -u bob(a)example.com shared/bill(a)example.com /Drafts Rights lookup read write write-seen write-deleted insert post expunge create delete admin 2.doveadm mailbox create -u bob(a)example.com "shared/bill(a)example.com /Drafts/Test" (no output) 3.doveadm -f table acl rights -u bob(a)example.com shared/bill(a)example.com /Drafts/Test Rights lookup read write write-seen write-deleted insert post expunge create delete So this works, but creating a folder directly in the inbox of the shared mailbox doesn't work and I don't know why. Is this not supported? Or do I miss something important? Another problem I have is, that the private index files in shared folders are often to always marked as inconsistent in the dovecot log file, an example of such log messages look like: - imap(bob(a)example.com): Error: /export/home/imap/bob(a)example.com/shared /bill(a)example.com/.Templates/dovecot.index.pvt view is inconsistent - imap(bob(a)example.com): Error: /export/home/imap/bob(a)example.com/shared /bill(a)example.com/.Templates/dovecot.index.pvt view is inconsistent - imap(bob(a)example.com): Error: /export/home/imap/bob(a)example.com/shared /bill(a)example.com/.Trash/dovecot.index.pvt view is inconsistent - imap(bob(a)example.com): Error: /export/home/imap/bob(a)example.com/shared /bill(a)example.com/.Trash/dovecot.index.pvt view is inconsistent And this is logged for almost every user who has access to a shared mailbox and I don't know how to stop getting the indexes inconsistent. Here's my Dovecot configuration: # 2.2.30 (8acbc67): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.18 (29cc74d) # OS: Linux 2.6.32-642.4.2.el6.x86_64 x86_64 CentOS release 6.9 (Final) ext4 auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes disable_plaintext_auth = no mail_debug = yes mail_location = maildir:/export/home/imap/%Lu/Maildir mail_plugins = acl zlib mail_log notify mailbox_idle_check_interval = 10 secs mailbox_list_index = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mbox_write_locks = fcntl namespace { hidden = no ignore_on_failure = no inbox = no list = children location = maildir:%%h/Maildir:INDEXPVT=%h/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { hidden = no inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = INBOX/ separator = / type = private } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=300 acl_shared_dict = file:/export/home/shared-db/shared-mailboxes mail_log_events = append delete undelete expunge copy mailbox_delete mailbox_rename flag_change mail_log_fields = uid box msgid size from flags sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_global = /var/lib/dovecot/sieve/global/ sieve_user_log = ~/.dovecot.sieve.log zlib_save = gz zlib_save_level = 6 } protocols = imap pop3 lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } } service imap-login { process_limit = 500 process_min_avail = 20 } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } ssl = required ssl_cert = </etc/pki/dovecot/certs/mail.tutech.de.crt_chain ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL:!EXPORT ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv3 !SSLv2 syslog_facility = local6 userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap } protocol lmtp { mail_plugins = acl zlib mail_log notify sieve } protocol imap { mail_max_userip_connections = 100 mail_plugins = acl zlib mail_log notify imap_zlib imap_acl } Any help is appreciated. Many Thanks & best regards Thomas

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Still trouble with vpopmail
by Bobber 31 May '17

31 May '17

Getting this error: > In file included from ../../src/lib/lib.h:6:0, > from auth-common.h:4, > from userdb-vpopmail.c:5: > ../../config.h:791:0: note: this is the location of the previous > definition > #define VERSION "2.2.30" > ^ > userdb-vpopmail.c: In function ‘userdb_vpopmail_get_quota’: > userdb-vpopmail.c:72:6: error: too many arguments to function ‘var_expand’ > if (var_expand(quota, template, tab, error_r) < 0) > ^ > In file included from auth-request.h:5:0, > from userdb.h:89, > from userdb-vpopmail.c:6: > ../../src/lib/var-expand.h:18:6: note: declared here > void var_expand(string_t *dest, const char *str, > ^ > userdb-vpopmail.c:72:2: error: void value not ignored as it ought to be > if (var_expand(quota, template, tab, error_r) < 0) -- *Bob Wooldridge* Blog: http://kc0dxf.net/blog/

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Re: v2.2.30 released
by Joseph Tam 31 May '17

31 May '17

Timo Sirainen announced > + If dovecot.index.cache corruption is detected, reset only the one > corrupted mail instead of the whole file. Is this a big performance win? I still have users with jumbo mailboxes who insist on direct mailbox file access using procmail or mail readers, which trigger index rebuilds when dovecot accesses them. Joseph Tam <jtam.home(a)gmail.com>

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mailserver.users does not exist
by Amaechi Janneh 31 May '17

31 May '17

Hello. It appears that I have an issue with my dovecot setup. When trying to authenticate, i get this error: May 28 20:18:26 AmaechiJ dovecot[10516]: imap-login: Login: user=< aj(a)example.com>, method=PLAIN, rip=, lip=, mpid=10879, TLS, ses...QOQBg9rlR> May 28 20:18:42 AmaechiJ dovecot[10516]: imap(aj(a)example.com): Connection closed in=116 out=1311 May 28 20:20:32 AmaechiJ dovecot[10516]: auth-worker(10892): Warning: mysql: Query failed, retrying: Table 'mailserver.users' doesn't exist May 28 20:20:32 AmaechiJ dovecot[10516]: auth-worker(10892): Error: sql( aj(a)example.com,) User query failed: Table 'mailserver.users' doesn't exist May 28 20:20:32 AmaechiJ dovecot[10516]: imap-login: Login: user=< aj(a)example.com>, method=PLAIN, rip=, lip=, mpid=10894, TLS, ses...QZwBg9rlR> But I already have the users data under virtual_users. So what should I do? Regards, Amaechi Janneh

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Re: SSL problem - no banner
by Joseph Tam 30 May '17

30 May '17

Marcio Merlone <marcio.merlone(a)a1.ind.br> writes: > Only openssl s_client -connect localhost:993 works fine and fast, while > all MUA's and telnet does not. Telnet timeouts waiting for banner after > a minute or so: > > root@netuno:~# openssl s_client -connect localhost:993 > ... > * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE > IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot ready. > ... > root@netuno:~# telnet localhost 993 > Trying 127.0.0.1... > Connected to localhost. > Escape character is '^]'. > (about 1 minute later...) > Connection closed by foreign host. You misundertand how SSL (or TLS) vs STARTTLS works. SSL/TLS (on port 993) starts negotiating a secure session protocol right after connection, which involves binary exchange of data, certificates, etc.. This is what "openssl s_client ..." does, but telnet does not. Only after the SSL handshake completes will you get banners, etc. STARTTLS starts out as a unencrypted session and thus, you'll get the initial banner. The client is then expected to initiate a secure session by issuing a STARTTLS directive, whereupon client and server starts the secure session negotiation like above. To test this, you would use openssl s_client -starttls imap -connect localhost:143 So telnet doesn't work because it does not do SSL. Your MUA don't work because of the same misunderstanding, or there's some network issue at play. You need to align your clients to use the security protocol you've enabled. Joseph Tam <jtam.home(a)gmail.com>

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Fatal error with IMAP MOVE from a shared mailbox to Trash folder
by Daniele Barresi 30 May '17

30 May '17

Hello everyone. I have a problem using Dovecot 2.2.26 with ACL plugin and deleting e-mails from a shared mailbox. My user doesn't have the "expunge" permission on the shared mailbox, but it has the "write-deleted" permission. So, when I delete a message from the shared mailbox using a client that implements the IMAP MOVE command, it tries to move the message to my Trash folder. Then the server closes the connection to the client (process aborted) and I get three lines in the log file with a backtrace and "Fatal" error. In this case the message doesn't get copied or moved from the shared folder and the client complaints. I found the same thing happens whenever I try to move anything between folders of the shared mailbox itself, while logged in with my user. I can move messages inside my own mailbox just fine. If I try the same operation from a client that uses the IMAP COPY + DELETE commands, no errors are logged and the outcome is as expected: the message gets copied from the shared folder to my Trash and gets the flag "\Deleted" set on the shared folder. My setup is as follows: Dovecot: 2.2.26.0 OS: Ubuntu 16.04.1 LTS CPU architecture: x86_64 Filesystem: ext4 The relevant lines from mail.err log: Dec 27 15:21:18 dovecot dovecot: imap(danielebarresi): Panic: file mail-storage.c: line 2143 (mailbox_save_context_reset): assertion failed: (ctx->copying_via_save) Dec 27 15:21:18 dovecot dovecot: imap(danielebarresi): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x9438e) [0x7fbcd478538e] -> /usr/lib/dovecot/libdovecot.so.0(+0x9447c) [0x7fbcd478547c] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fbcd471ea4e] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x41b78) [0x7fbcd4a50b78] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_save_cancel+0x73) [0x7fbcd4a53d73] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so(+0xe142) [0x7fbcd3f1d142] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x4516d) [0x7fbcd4a5416d] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_move+0x23) [0x7fbcd4a54333] -> dovecot/imap(+0xf9c5) [0x557cf98629c5] -> dovecot/imap(command_exec+0xa6) [0x557cf986f196] -> dovecot/imap(+0x1a4c2) [0x557cf986d4c2] -> dovecot/imap(+0x1a550) [0x557cf986d550] -> dovecot/imap(client_handle_input+0x195) [0x557cf986d915] -> dovecot/imap(client_input+0x85) [0x557cf986de25] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7fbcd4799bdc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10a) [0x7fbcd479b09a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7fbcd4799c65] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fbcd4799e08] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fbcd4724f53] -> dovecot/imap(main+0x322) [0x557cf9860ca2] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7fbcd4348830] -> dovecot/imap(+0xde1f) [0x557cf9860e1f] Dec 27 15:21:18 dovecot dovecot: imap(danielebarresi): Fatal: master: service(imap): child 6907 killed with signal 6 (core dumped) Dovecot configuration (doveadm -n): # 2.2.26.0 (23d1de6): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.4.0-57-generic x86_64 Ubuntu 16.04.1 LTS auth_cache_negative_ttl = 10 mins auth_cache_size = 2 M auth_master_user_separator = * auth_mechanisms = plain login first_valid_uid = 12 last_valid_uid = 12 mail_location = maildir:~/Maildir mail_plugins = acl quota notify mail_log stats lazy_expunge 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 casellecondivise { list = children location = maildir:%%h/Maildir:INDEXPVT=~/Maildir/shared/%%u prefix = Caselle condivise/%%u/ separator = / subscriptions = no type = shared } namespace expunged { hidden = yes list = no location = maildir:/var/expunged/%n/Expunged prefix = EXPUNGED/ separator = / } namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=300 acl_shared_dict = file:/etc/dovecot/shared/shared-mailboxes lazy_expunge = EXPUNGED/ lazy_expunge_only_last_instance = yes mail_log_events = delete copy flag_change save undelete expunge mail_log_fields = uid box msgid size quota = maildir:user quota quota_exceeded_message = (Quota exceeded) La casella di posta elettronica del destinatario è piena. quota_rule = *:storage=1G quota_rule2 = Trash:storage=+100M quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=100%% quota-warning 100 %u sieve = file:~/sieve;active=~/.dovecot.sieve stats_command_min_time = 1 mins stats_domain_min_time = 12 hours stats_ip_min_time = 12 hours stats_memory_limit = 32 M stats_refresh = 30 secs stats_session_min_time = 15 mins stats_track_cmds = yes stats_user_min_time = 1 hours } protocols = " imap sieve" service auth { unix_listener /var/spool/postfix/private/auth { group = mail mode = 0666 user = postfix } unix_listener auth-userdb { group = mail user = mail } } service dict { unix_listener dict { group = mail mode = 0600 user = mail } } service imap-login { process_limit = 300 process_min_avail = 2 } service managesieve-login { inet_listener sieve { port = 4190 } } service quota-warning { executable = script /etc/dovecot/scripts/quota-warning.sh unix_listener quota-warning { group = mail user = mail } } service stats { fifo_listener stats-mail { mode = 0600 user = mail } } ssl = required ssl_cert = </etc/ssl/certs/pac.apg23.org.pem ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf.ext default_fields = uid=mail gid=mail home=/var/mail/%u master_user=%u driver = sql } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext default_fields = uid=mail gid=mail home=/var/mail/%u master_user=%u driver = ldap } protocol lda { mail_plugins = acl quota notify mail_log stats lazy_expunge sieve } protocol imap { mail_max_userip_connections = 25 mail_plugins = acl quota notify mail_log stats lazy_expunge imap_quota imap_stats } I tested this with different users with the same result. I tested and reproduced the error with Thunderbird and Roundcube. The Apple Mail client uses IMAP COPY + DELETE, instead of IMAP MOVE, and no errors are reported. So I think it's related to the IMAP MOVE implementation on Dovecot server. Has anyone seen the same error? Any suggestions? Is this a Dovecot bug? --- Daniele Barresi

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virtual folder: how to store in mysql?
by dovecot＠avv.solutions 30 May '17

30 May '17

Hello Community, Now that virtual folders seem to work fine, I stil lhave 2 questions : 1° Is it possible to store the virtual folder definition (aka content of Folder/dovecot-virtual) in mysql? 2° I have duplicates in my "Unseen", which both correctly disappear once handled one of them Example: !Inbox * -Inbox (tried this but does not succeed -Trash -Trash/* Public/* Unseen 2°bis :) I tried to put the "common defs" in a shared folder (/etc/dovecot/virtual) using personal index location = virtual:/etc/dovecot/virtual:INDEX=/sd/MAIL_IMAP_POP/%d/%n/__Virtual/ This does not work, I have to *copy* (even symlinks do not succeed) the definitions and use location = virtual:/sd/MAIL_IMAP_POP/%d/%n/__Virtual:INDEX=/sd/MAIL_IMAP_POP/%d/%n/__Virtual/ I already tried to set perms on /etc/dovecot/virtual to: vmail.vmail rw(x)------ Thank you! Cheers

1 0

Question about how to serve many imap users on some mailbox.
by Oleksandr Lystopad 30 May '17

30 May '17

Hi, dear dovecot users! I am running 2.2.29.1 (e0b76e3) on FreeBSD. In my case, one mailbox info(a)example.com is shared between 5-10 managers. Sometimes they complains that no new messages displayed in folder message count list in brackets (bold number if new messages exists), but when they click on the imap folder (for example Inbox) they could see many new mails. There not only Inbox folder, they have 10-30 folders with quite big flow of new messages. Almost all users are using Microsoft Outlook MUA. Please, help me to solve the issue. My config could be found bellow (dovecot -n): auth_failure_delay = 12 secs auth_mechanisms = login cram-md5 plain auth_verbose = yes disable_plaintext_auth = no first_valid_gid = 26 first_valid_uid = 26 lda_mailbox_autocreate = yes listen = * login_greeting = imap/pop mailserver ready mail_location = maildir:~/Maildir mail_max_userip_connections = 50 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 passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } protocols = pop3 imap sieve service auth { unix_listener auth-client { group = mailnull mode = 0600 user = mailnull } unix_listener auth-login { group = mailnull mode = 0600 user = $default_internal_user } unix_listener auth-master { group = mailnull mode = 0600 user = mailnull } unix_listener auth-userdb { group = mailnull mode = 0600 user = mailnull } user = root } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 } } service imap { process_limit = 512 } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 } } service pop3 { process_limit = 512 } ssl_cert = </usr/local/etc/SSL/my.crt ssl_key = # hidden, use -P to show it userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } verbose_proctitle = yes protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep } protocol lda { mail_plugins = sieve }

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MySQL issue
by Amaechi Janneh 30 May '17

30 May '17

Hello. It appears that I have an issue with my dovecot setup. When trying to authenticate, i get this error: May 28 20:18:26 AmaechiJ dovecot[10516]: imap-login: Login: user=< aj(a)example.com>, method=PLAIN, rip=, lip=, mpid=10879, TLS, ses...QOQBg9rlR> May 28 20:18:42 AmaechiJ dovecot[10516]: imap(aj(a)example.com): Connection closed in=116 out=1311 May 28 20:20:32 AmaechiJ dovecot[10516]: auth-worker(10892): Warning: mysql: Query failed, retrying: Table 'mailserver.users' doesn't exist May 28 20:20:32 AmaechiJ dovecot[10516]: auth-worker(10892): Error: sql( aj(a)example.com,) User query failed: Table 'mailserver.users' doesn't exist May 28 20:20:32 AmaechiJ dovecot[10516]: imap-login: Login: user=< aj(a)example.com>, method=PLAIN, rip=, lip=, mpid=10894, TLS, ses...QZwBg9rlR> But I already have the users data under virtual_users. So what should I do? Regards, Amaechi Janneh I am running dovecot 2.2.13 Debian 8

3 4

Can only enable Sieve scripts not edit them (Roundcube)
by Paul Littlefield 29 May '17

29 May '17

Hello, (my first post so be gentle) I will be posting this to the Roundcube mailing list too, but thought it worth asking here as well. I have a Roundcube installation running Apache with Dovecot and Sieve. When logged in to Roundcube, a user can see the Sieve scripts and enable or disable them but NOT edit them or create new scripts. In other words, Dovecot will happily EDIT the script to mark it as 'false' but will not edit the actual rules or create a new rule... e.g. require ["fileinto","vacation"]; # rule:[Out of Office] if false # true { vacation :days 1 :addresses "me(a)mydomain.com" :subject "Out of Office" :from "me(a)mydomain.com" "I am out of the office."; } # rule:[Spam] if header :contains "subject" "{Spam}" { fileinto "Spam"; } Any ideas? Thanks, -- Paul Littlefield

3 3

user-defined special-use folders
by Fabian Schmidt 29 May '17

29 May '17

I plan to define SPECIAL-USE mailboxes and think about defining per user special-use folders for those who don't use the default folder names. Is this possible in dovecot? What I try: $ doveadm exec imap * PREAUTH [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE SEARCH=FUZZY METADATA SPECIAL-USE] Logged in as fschmidt a1 SETMETADATA "sent-mail" (/private/specialuse "\\Sent") a1 NO [CANNOT] The /private/specialuse attribute cannot be changed (0.008 + 0.000 + 0.008 secs). using dovecot 2.2.29.1, following the example in RFC 6154, sect. 5.4 (How is MAIL_ATTRIBUTE_INTERNAL_RANK_AUTHORITY defined or set?) Fabian.

2 1

When will passdb callback to mechanism yield PASSDB_RESULT_NEXT?
by Peter Mogensen 29 May '17

29 May '17

Hi, code question... I've been trying to figure out the implications of the new "noauthenticate" passdb field. Internally it causes a passdb to result in PASSDB_RESULT_NEXT. When a SASL mechanism calls auth_request_lookup_credentials(...,callback) the passdb result is passed to the callback. But I can't really figure out when that result will ever be PASSDB_RESULT_NEXT. It seems the passdb fallthrough resolver will always replace it with PASSDB_RESULT_INTERNAL_FAILURE if it ends up being the last result. Can it ever leak into the callback or is it an internal intermediate value or the passdb resolver? /Peter

2 1

No doveadm-save in wiki2?
by KT Walrus 29 May '17

29 May '17

Is “doveadm save” an undocumented feature? Or, just well-hidden? https://wiki2.dovecot.org/Tools/Doveadm <https://wiki2.dovecot.org/Tools/Doveadm> Kevin

3 5

Another mail_crypt question: figure out to password secure using mysql
by dovecot＠avv.solutions 26 May '17

26 May '17

Hello Community, (sorry to be more busy, hence more running questions in parallel :) ) As mentioned in another post, I am testing mail_crypt plugin. I was wondering how to really secure the process sothat even the admin cannot have any access to the other users mail content. My current config is simple: - using per-folder keys (hence the per-user spaces are preserved) - put the public/private global keys in base64 format into the sql DB (elliptic algo) This obviously allows anyone with read access to the table to decrypt the mails from the filesystem... which I try to prevent. Considering of course that all mail users are virtual and do not (and may not) have access to the box itself: - how can I secure the keys? I do not see how to handle a assword for them? - a solution might be to crypt/decrypt the keys using the user's password? - other? Thank you for you help.

2 2

dovecot: auth-worker: Fatal: master: service(auth-worker): child XXXXX killed with signal 11
by dovecot＠jeffandjessi.com 26 May '17

26 May '17

Still Trying to track down a dovecot issue .... The error message is: dovecot: auth-worker: Fatal: master: service(auth-worker): child XXXXX killed with signal 11 (core not dumped - set service auth-worker { drop_priv_before_exec=yes }) The setup is dovecot 2.2.29.1 with passwd and mysql auth db's and a very basic config. both authentications work ... the symptom is that after a connection is made the auth worker loads and emails are downloaded and everything "is fine". However, about 30 second to a minute after the connection is done the process dies with the error message. Then the process starts all over with on the next checking of email ,but again everything "works" just seeing this error and the process dieing each time? enabled all extra verbose logging ,but nothing gives any clues.... Tried to enable core dumps ,but couldnt get core dumps to work ? The only thing is that a recently pkgsrc (netbsd) update create 2 packages, one for dovecot and one for mysql plugin , sense then now this error appears. ,but it appears the .so lib files are installed and linked correctly. Double checked all file permissions and user permissions as well as chroot , etc, etc, ,etc.... cant seem to narrow this one down .... any ideas on trouble shooting would be great .... even tried running a trace with gdb -p on the process ,but it just dies with a signal 11 .... anybody have any ideas how to trouble shoot this or is this a bug in the software .... help !!

2 1

Moving dovecot/maildir to new host, dovecot.* files
by John Gateley 26 May '17

26 May '17

Hello, I've done a fair amount of searching, and couldn't find a definitive answer. I am moving my dovecot/postfix servers and mail in Maildir formats to a new host. When I move the Maildir directories, what should I do with the dovecot.index/cache/log/etc. files? I know I can filter them out, and dovecot will recreate them, but is that the best approach? I am thinking of the following: Shut down postfix and dovecot on both the new and old server rsync the maildirs from the old server to the new server start up postfix/dovecot on the new server verify all is okay switch DNS from old server to new server. Is this the best approach with minimal impact to mail users? Thanks very much John

2 2

Issue with virtual folder: partially see them and cannot subscribe
by dovecot＠avv.solutions 26 May '17

26 May '17

Hello Community, I am trying to figure out hwo to use the virtual mailboxes, but remain a bit confused: - I see the Virtual speudo-folder - Eventuelly the name of the boxes underneath - But cannot see more, nor subscrie to the virtual mailboxes Dovecot: # 2.2.29.1 (e0b76e3): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.18 (29cc74d) # OS: Linux 4.4.50-v7+ armv7l Debian 8.0 ext4 auth_mechanisms = plain login log_path = /dev/stderr mail_attribute_dict = file:/sd/MAIL_IMAP_POP/%d/%n/Maildir/dovecot-attributes mail_debug = yes mail_gid = vmail mail_location = maildir:/sd/MAIL_IMAP_POP/%d/%n/Maildir:LAYOUT=fs mail_plugins = " virtual mail_crypt" mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace { inbox = yes location = mailbox { special_use = \Drafts name = Drafts } mailbox { special_use = \Junk name = Junk } mailbox { special_use = \Sent name = Sent } mailbox { special_use = \Sent name = Sent Messages } mailbox { special_use = \Trash name = Trash } prefix = name = inbox } namespace { hidden = no list = yes location = virtual:/sd/MAIL_IMAP_POP/%%d/%%n/Virtual prefix = Virtual/ separator = / subscriptions = yes type = private name = virtual } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { mail_crypt_curve = secp521r1 mail_crypt_save_version = 2 sieve = file:/sd/MAIL_IMAP_POP/%d/%n/Sieve;active=/sd/MAIL_IMAP_POP/%d/%n/Sieve.active } service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { user = vmail name = auth-worker } service { unix_listener { group = postfix mode = 0666 user = postfix path = /var/spool/postfix/private/auth } unix_listener { mode = 0600 user = vmail path = auth-userdb } user = dovecot name = auth } service config { name = config } service dict-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } service { inet_listener { port = 143 name = imap } inet_listener { port = 993 ssl = yes name = imaps } name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service imap-master { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service { unix_listener { group = postfix mode = 0600 user = postfix path = /var/spool/postfix/private/dovecot-lmtp } name = lmtp } service log-errors { name = log } service sieve { name = managesieve-login } service login/sieve { name = managesieve } service { inet_listener { port = 110 name = pop3 } inet_listener { port = 995 ssl = yes name = pop3s } name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } ssl = required ssl_cert = </sd/MAIL_IMAP_POP/_ssl/pi3tv.local.avv_server.crt ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = " virtual mail_crypt sieve" service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } service imap { name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service imap-master { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service sieve { name = managesieve-login } service login/sieve { name = managesieve } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } } protocol lda { mail_plugins = " virtual mail_crypt virtual" service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } service imap { name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service imap-master { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service sieve { name = managesieve-login } service login/sieve { name = managesieve } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } } protocol imap { mail_plugins = " virtual mail_crypt virtual" service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } service imap { name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service imap-master { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service sieve { name = managesieve-login } service login/sieve { name = managesieve } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } } protocol pop3 { service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } service imap { name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service imap-master { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service sieve { name = managesieve-login } service login/sieve { name = managesieve } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } } Any tip/suggestion? I tried several configs from https://wiki2.dovecot.org/Plugins/Virtual Example 1: Virtual/Deleted/dovecot-virtual: * deleted Example 2 Virtual/All/dovecot-virtual * -Trash -Trash/* all Thanks!

2 6

Plugin "mail_crypt" - using folder keys
by Evgeniy Korneechev 26 May '17

26 May '17

Hi, i have two questions about using "folder keys" for encryption: 1. If i use this method how can i decrypt files manually? 2. If move a letter to another folder (or remove it), it will be unreadable. Log: imap(cloud): Error: read() failed: read(/home/cloud/Maildir/.Sent.test/cur/1485528498.M838579P2267....) failed: Decryption error: no private key available (uid=5, box=Sent.test, read reason=) imap(cloud): Info: Internal error occurred. Refer to server log for more information. or: imap(cloud): Error: read() failed: read(/home/cloud/Maildir/.Trash/cur/1485528906.M150750P3081....) failed: Decryption error: no private key available How fix it? Thank you in advance. ------------------------------------------------ # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.4.39-std-def-alt0.M80P.1 x86_64 ALT 8.1 Server ..... mail_attribute_dict = file:%h/Maildir/dovecot-attributes mail_plugins = $mail_plugins mail_crypt plugin { mail_crypt_curve = secp521r1 mail_crypt_save_version = 2 } ..... -- WBR, BaseALT/ALTLinux Team

3 10

Public mailboxes and IPA (LDAP)
by Ranbir 26 May '17

26 May '17

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi Everyone, I have a working Dovecot server that is using my IPA domain to lookup users and passwords. I also have a "public" namespace that has the inboxes for public email accounts. Everything is working for "regular" private email boxes. But, I can't see new messages delivered to any of the public inboxes. Incoming emails get delivered to the correct locations for the public inboxes: I just don't see them in my email clients. I'm not sure what the problem is since I don't see an error in the dovecot logs. I also don't want to use the home directory location as provided by the IPA domain. I've worked around it by using file system symlinks, but I'd much rather just ignore the IPA provided home directory. I'm wondering if my workaround is the culprit behind new messages to the public folders not being seen by the client. Here's my config: # 2.2.10: /etc/dovecot/dovecot.conf auth_cache_negative_ttl = 0 auth_cache_size = 1 k auth_debug = yes auth_gssapi_hostname = $ALL auth_krb5_keytab = /etc/imap.keytab auth_mechanisms = plain gssapi auth_realms = SOME.REALM auth_username_format = %Ln auth_verbose = yes first_valid_uid = 1000 hostname = server listen = 1.1.1.1 mail_gid = virtual mail_location = maildir:~/Maildir mail_plugins = quota acl mail_uid = virtual managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded- character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave mbox_write_locks = fcntl namespace { location = maildir:/var/spool/mail/domain.tld/public prefix = Public. separator = . subscriptions = no type = public } namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/conf.d/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile quota = maildir:User quota quota_rule = *:storage=500M sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = postmaster@%d protocols = imap lmtp service auth-worker { user = $default_internal_user } service auth { inet_listener { address = 1.1.1.1 port = 17900 } unix_listener auth-userdb { group = virtual mode = 0600 user = virtual } } service imap-login { process_min_avail = 2 service_count = 1 } service lmtp { inet_listener lmtp { address = 1.1.1.1 port = 24 } } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem ssl_protocols = !SSLv2 !SSLv3 userdb { args = /etc/dovecot/conf.d/dovecot-ldap-userdb.conf.ext default_fields = uid=virtual gid=virtual driver = ldap } verbose_proctitle = yes protocol lmtp { mail_plugins = quota acl sieve } protocol lda { mail_plugins = quota acl sieve } protocol imap { mail_plugins = quota acl imap_quota imap_acl } - -- Ranbir -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCgAGBQJZJz5lAAoJEN7T/ly5z1dituQQAIvq/DyDq5JbyREpopj5XcgN RjuvFAf2VuR9ieBnJ66GZPS9kcLZusqTzFyBczJmvq5sHRR8+UvRhsDVGGRNGFS+ 5b6oJNbP5BYP+93Ik8Ai7XgkaSfzIVg6cpru0uzMN0FvzQWXGONKQhMI0dFF+rFf 377gxho3AiAUxffX/vRhOvmE5/loJL9g8WDd6qAdZ6Ow3X3ISIWTo8ICWcndxWJK WU+/vsXfg1Up96M9X38FIhCBVcJG+igUXqZ3/0+N4at/L6BI5BWmG21XpaReGORo QjVaDIeFw4supnaKJszYiiYU1vQRHyvW5p2V0l1Q7mIh/sqANYhqJpziCP9yx1gN g0iv32V2EPxI44ympuhFtAslqyyGhfMtHOsufQ/QbrwjJAML/TRJYuyqh0hiZ+0h anhkDmkb0mlJlroPYJatiqJZqOYNRmtT8QpRMqapELDBo/Rc2LzqnkrgEso2XjI3 yLYXSgV1cY7HNJzhIvmPWZDncF4LW5o3JpidCdcDRnXvDUc3tyb/qRQkvI1+Zycw P5n2r+9BcSWA194TU+QPzvdB9MKQ+Cn3dM0HwYkEqQXH7BVgKKvXobaM+mOgBjLL Ais+yc0aeoKV5r3ln74HPRyXfw0Zp9g128BwzQG597kPhXaXb9Hd5o58LMkdMfxs 5ycn42U8p2ZiKHFDx9vO =swZL -----END PGP SIGNATURE-----

1 1

"@LIBICU_CFLAGS@: No such file or directory" during libtool command for lib-fts (cross compile)
by awl1 26 May '17

26 May '17

Hello, I am a complete newbie to dovecot, but do have reasonable experience in compiling Unix/Linux software. I am currently trying to do a cross-compile of dovecot-2.29.1 to be used on my home office Thecus NAS (host: Thecus kernel 2.6.33 on 32-bit Intel Atom: "i686-nptl-linux-gnu"; my build machine has Ubuntu 16.04.2 LTS) "from ground up", i.e. I need to build and provide all dovecot dependencies from within my module. My compiler toolchain (using gcc-5.2.0) has been set up properly using ct-ng and works completely fine. I also have already successfully cross-compiled/built almost all dovecot dependencies (zlib, bzip2, xz, lz4, openssl-1.0.2, clucene-git, snowball-git, libexttextcat, icu) - i.e. including icu - and installed them properly into my cross-compile build root (/raid/data/module/Dovecot/sys as defined by Thecus module spec). My dovecot configure/make command is as follows: === export PKG_CONFIG=/usr/bin/pkg-config export PKG_CONFIG_PATH=/raid/data/module/Dovecot/sys/lib/pkgconfig export CC=$HOME/Thecus/n4200pro-5.2.0-toolchain/i686-nptl-linux-gnu/bin/i686-nptl-linux-gnu-gcc export CFLAGS="" export LDFLAGS="-L/raid/data/module/Dovecot/sys/lib -Wl,-rpath,/raid/data/module/Dovecot/sys/lib" export LIBS="" # -llib export CPPFLAGS=-I/raid/data/module/Dovecot/sys/include export CPP=$HOME/Thecus/n4200pro-5.2.0-toolchain/i686-nptl-linux-gnu/bin/i686-nptl-linux-gnu-cpp export CXX=$HOME/Thecus/n4200pro-5.2.0-toolchain/i686-nptl-linux-gnu/bin/i686-nptl-linux-gnu-g++ export CXXFLAGS="" export LT_SYS_LIBRARY_PATH=/raid/data/module/Dovecot/sys/lib export CXXCPP=$HOME/Thecus/n4200pro-5.2.0-toolchain/i686-nptl-linux-gnu/bin/i686-nptl-linux-gnu-cpp ./configure --host i686-nptl-linux-gnu \ --prefix=/raid/data/module/Dovecot/sys \ --libdir=/raid/data/module/Dovecot/sys/lib \ --localstatedir=/raid/data/module/Dovecot/com \ --sharedstatedir=/raid/data/module/Dovecot/var \ --disable-silent-rules \ --with-notify=inotify \ --with-lucene \ --with-stemmer \ --with-textcat \ --with-icu \ --with-solr \ --with-zlib \ --with-bzlib \ --with-lzma \ --with-ssl=openssl \ --with-ssldir=/raid/data/module/Dovecot/sys/etc/ssl \ --with-storages=mdbox,sdbox,maildir,mbox,cydir,imapc,pop3c \ --with-moduledir=/raid/data/module/Dovecot/sys \ --with-gnu-ld \ --with-sysroot=/raid/data/module/Dovecot/sys \ --with-libiconv-prefix=/raid/data/module/Dovecot/sys \ --with-libintl-prefix=/raid/data/module/Dovecot/sys make === and completes configuration just fine, but the make step runs into the following issue which I am unable to resolve even after several hours of investigation, so I am completely stuck at this point... :-( === (...) make[3]: Leaving directory '/home/andreas/Thecus/Dovecot/dovecot-2.2.29.1/src/lib-dovecot' Making all in lib-fts make[3]: Entering directory '/home/andreas/Thecus/Dovecot/dovecot-2.2.29.1/src/lib-fts' make all-am make[4]: Entering directory '/home/andreas/Thecus/Dovecot/dovecot-2.2.29.1/src/lib-fts' /bin/bash ../../libtool --tag=CC --mode=compile /home/andreas/Thecus/n4200pro-5.2.0-toolchain/i686-nptl-linux-gnu/bin/i686-nptl-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-test -I../../src/lib-mail -I../../src/lib-fts -I/raid/data/module/Dovecot/sys/include/libexttextcat/ @LIBICU_CFLAGS@ -DUDHRDIR=\""../../src/lib-fts"\" -DDATADIR=\"/raid/data/module/Dovecot/sys/share/dovecot\" -DTEST_STOPWORDS_DIR=\""../../src/lib-fts/stopwords"\" -I/raid/data/module/Dovecot/sys/include -std=gnu99 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -I/raid/data/module/Dovecot/sys/include -MT fts-filter.lo -MD -MP -MF .deps/fts-filter.Tpo -c -o fts-filter.lo fts-filter.c libtool: compile: /home/andreas/Thecus/n4200pro-5.2.0-toolchain/i686-nptl-linux-gnu/bin/i686-nptl-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-test -I../../src/lib-mail -I../../src/lib-fts -I/raid/data/module/Dovecot/sys/include/libexttextcat/ @LIBICU_CFLAGS@ -DUDHRDIR=\"../../src/lib-fts\" -DDATADIR=\"/raid/data/module/Dovecot/sys/share/dovecot\" -DTEST_STOPWORDS_DIR=\"../../src/lib-fts/stopwords\" -I/raid/data/module/Dovecot/sys/include -std=gnu99 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -I/raid/data/module/Dovecot/sys/include -MT fts-filter.lo -MD -MP -MF .deps/fts-filter.Tpo -c fts-filter.c -fPIC -DPIC -o .libs/fts-filter.o i686-nptl-linux-gnu-gcc: error: @LIBICU_CFLAGS@: No such file or directory Makefile:714: recipe for target 'fts-filter.lo' failed make[4]: *** [fts-filter.lo] Error 1 make[4]: Leaving directory '/home/andreas/Thecus/Dovecot/dovecot-2.2.29.1/src/lib-fts' Makefile:562: recipe for target 'all' failed === As far as I can tell, my pkgconfig file (/raid/data/module/Dovecot/sys/lib/pkgconfig/icu-i18n.pc) also seems to be fine: === # Copyright (C) 2016 and later: Unicode, Inc. and others. # License & terms of use: http://www.unicode.org/copyright.html # Copyright (C) 2010-2013, International Business Machines Corporation. All Rights Reserved. # CFLAGS contains only anything end users should set CFLAGS = # CXXFLAGS contains only anything end users should set CXXFLAGS = -std=c++11 # DEFS only contains those UCONFIG_CPPFLAGS which are not auto-set by platform.h DEFS = prefix = /raid/data/module/Dovecot/sys exec_prefix = ${prefix} #bindir = ${exec_prefix}/bin libdir = ${exec_prefix}/lib includedir = ${prefix}/include baselibs = -lpthread -ldl -lm #datarootdir = ${prefix}/share #datadir = ${datarootdir} #sbindir = ${exec_prefix}/sbin #mandir = ${datarootdir}/man #sysconfdir = ${prefix}/etc UNICODE_VERSION=9.0 ICUPREFIX=icu ICULIBSUFFIX= LIBICU=lib${ICUPREFIX} #SHAREDLIBCFLAGS=-fPIC pkglibdir=${libdir}/icu${ICULIBSUFFIX}/59.1 #pkgdatadir=${datadir}/icu${ICULIBSUFFIX}/59.1 ICUDATA_NAME = icudt59l #ICUPKGDATA_DIR=${exec_prefix}/lib #ICUDATA_DIR=${pkgdatadir} ICUDESC=International Components for Unicode Version: 59.1 Cflags: -I${includedir} # end of icu.pc.in Description: International Components for Unicode: Internationalization library Name: icu-i18n Requires: icu-uc Libs: -licui18n === Note that even adding a line stating LIBICU_CFLAGS=-I/raid/data/module/Dovecot/sys/include (just in order to set it to any non-null value) to the icu-i18n.pc file and/or setting an environment variable export LIBICU_CFLAGS=-I/raid/data/module/Dovecot/sys/include before running configure does NOT help to get rid of the above error... So do you have any idea why variable substitution for LIBICU_CFLAGS does not work, and what could be done to work around this? Many thanks in advance for your kind help with this! Best regards, Andreas awl1(a)gmx.net

1 1

Dovecot/Sieve shortcuts?
by Adam Shostack 24 May '17

24 May '17

Hi, Is there a clean way to match on an email address the way procmail ^TO_ did? that was a macro which expanded to (^((Original-)?(Resent-)?(To|Cc|Bcc)|(X-Envelope |Apparently(-Resent)?)-To):(.*[^-a-zA-Z0-9_.])?) so you could write * ^TO_dovecot dovecot and grab messages to the list. In sieve, I find myseld writing ["To","cc"] and wonder if there's a better way. Adam

4 8

dovecot: auth-worker: Fatal: master: service(auth-worker): child XXXXX killed with signal 11
by dovecot＠jeffandjessi.com 24 May '17

24 May '17

Trying to track down a dovecot issue .... The error message is: dovecot: auth-worker: Fatal: master: service(auth-worker): child XXXXX killed with signal 11 (core not dumped - set service auth-worker { drop_priv_before_exec=yes }) The setup is dovecot 2.2.29.1 with passwd and mysql auth db's and a very basic config. both authentications work ... the symptom is that after a connection is made the auth worker loads and emails are downloaded and everything "is fine". However, about 30 second to a minute after the connection is done the process dies with the error message. Then the process starts all over with on the next checking of email ,but again everything "works" just seeing this error and the process dieing each time? enabled all extra verbose logging ,but nothing gives any clues.... Tried to enable core dumps ,but couldnt get core dumps to work ? The only thing is that a recently pkgsrc (netbsd) update create 2 packages, one for dovecot and one for mysql plugin , sense then now this error appears. ,but it appears the .so lib files are installed and linked correctly. Double checked all file permissions and user permissions as well as chroot , etc, etc, ,etc.... cant seem to narrow this one down .... any ideas on trouble shooting would be great .... even tried running a trace with gdb -p on the process ,but it just dies with a signal 11 ....

1 0

v2.2.30 release candidate released
by Timo Sirainen 24 May '17

24 May '17

https://dovecot.org/releases/2.2/rc/dovecot-2.2.30.rc1.tar.gz https://dovecot.org/releases/2.2/rc/dovecot-2.2.30.rc1.tar.gz.sig There are a couple of changes still coming, but now would be a good time to make sure anything unexpected hasn't broken. The final release should be out early next week. * auth: Use timing safe comparisons for everything related to passwords. It's unlikely that these could have been used for practical attacks, especially because Dovecot delays and flushes all failed authentications in 2 second intervals. Also it could have worked only when passwords were stored in plaintext in the passdb. * master process sends SIGQUIT to all running children at shutdown, which instructs them to close all the socket listeners immediately. This way restarting Dovecot should no longer fail due to some processes keeping the listeners open for a long time. + auth: Add passdb { mechanisms=none } to match separate passdb lookup + auth: Add passdb { username_filter } to use passdb only if user matches the filter. See https://wiki2.dovecot.org/PasswordDatabase + dsync: Add dsync_commit_msgs_interval setting. It attempts to commit the transaction after saving this many new messages. Because of the way dsync works, it may not always be possible if mails are copied or UIDs need to change. + imapc: Support imapc_features=search without ESEARCH extension. + imapc: Add imapc_features=fetch-bodystructure to pass through remote server's FETCH BODY and BODYSTRUCTURE. + imapc: Add quota=imapc backend to use GETQUOTA/GETQUOTAROOT on the remote server. + passdb imap: Add allow_invalid_cert and ssl_ca_file parameters. + If dovecot.index.cache corruption is detected, reset only the one corrupted mail instead of the whole file. + doveadm mailbox status: Add "firstsaved" field. + director_flush_socket: Add old host's up/down and vhost count as parameters - More fixes to automatically fix corruption in dovecot.list.index - dsync-server: Fix support for dsync_features=empty-header-workaround - imapc: Various bugfixes, including infinite loops on some errors - fts-lucene: Fix it to work again with mbox format - vpopmail: Fix compiling

1 0

Postfix and Dovecot SASL: log NTLM username
by Bradley Giesbrecht 24 May '17

24 May '17

dovecot 2.2.22 postfix 3.1.1 I’m seeing "SASL NTLM authentication failed: {long_hash}” in mail.log. Is there a way to log the SASL username? I think postfix is logging what Dovecot SASL is returning so I hope I am asking on the right list. Regards, Bradley Giesbrecht (pixilla)

2 5

dovecot: auth-worker: Fatal: master: service(auth-worker): child XXXXX killed with signal 11
by dovecot＠jeffandjessi.com 24 May '17

24 May '17

Trying to track down a dovecot issue .... The error message is: dovecot: auth-worker: Fatal: master: service(auth-worker): child XXXXX killed with signal 11 (core not dumped - set service auth-worker { drop_priv_before_exec=yes }) The setup is dovecot 2.2.29.1 with passwd and mysql auth db's and a very basic config. both authentications work ... the symptom is that after a connection is made the auth worker loads and emails are downloaded and everything "is fine". However, about 30 second to a minute after the connection is done the process dies with the error message. Then the process starts all over with on the next checking of email ,but again everything "works" just seeing this error and the process dieing each time? enabled all extra verbose logging ,but nothing gives any clues.... Tried to enable core dumps ,but couldnt get core dumps to work ? The only thing is that a recently pkgsrc (netbsd) update create 2 packages, one for dovecot and one for mysql plugin , sense then now this error appears. ,but it appears the .so lib files are installed and linked correctly. Double checked all file permissions and user permissions as well as chroot , etc, etc, ,etc.... cant seem to narrow this one down .... any ideas on trouble shooting would be great .... even tried running a trace with gdb -p on the process ,but it just dies with a signal 11 ....

2 1

[imaptest] Explaining errors
by aduprat 24 May '17

24 May '17

Hi, I'm an Apache James committer and we are curious to use imaptest in order to validate our IMAP protocol implementation. I'm using the nightlybuild : imaptest-20170506 I follow the examples given in the /T/ /est IMAP server compliancy/ examples https://imapwiki.org/ImapTest/Examples. And I wanted to analyse the errors reported, here are some: Error: user1(a)james.org[11]: seq too high (16 > 15, state=APPEND): * 16 FETCH (BODY[HEADER.FIELDS (In-Reply-To From) ] "From: marcelo(a)carpa.ciagri.usp.br") Error: user1(a)james.org[14]: seq too high (26 > 25, state=APPEND): * 26 FETCH (MODSEQ (6068) FLAGS (\Answered \Draft \Flagged)) Error: user1(a)james.org[14]: seq too high (20 > 16, state=APPEND): * 20 EXPUNGE Error: user10(a)james.org[18]: Keyword used without being in FLAGS: $Label1: * 1 FETCH (MODSEQ (8) FLAGS (\Answered \Deleted \Draft $Label1 $Label3)) Error: Checkpoint: Total RECENT count 6 larger than current message count 3 Warning: Disabling \Recent flag tracking Error: user1(a)james.org[5]: Owned flag changed: \Deleted: * 7 FETCH (FLAGS (\Answered \Deleted \Recent $Label2)) Error: user1(a)james.org[5]: STORE didn't return FETCH FLAGS for seq 18 (expunged=yes): 5.75 OK STORE completed. Error: user1(a)james.org[1]: SEARCH result missing seq 2 (uid 0): 1.13 OK SEARCH completed. Error: Keyword '$Label1' dropped, but it still had 1 references Do you have a link explaining what are those failures ? Is there a report by IMAP command giving us an idea about our compliancy ? Do you allow us to communicate about such tests, for example: - in news http://james.apache.org/#posts ? - in medium article ? We also would like to have James mentioned in the servers status page https://imapwiki.org/ImapTest/ServerStatus How may we help you for that ? Thanks in advance, -- Antoine Duprat Développeur LGS/OBM/R&D Committer/PMC Apache James ------------------ GROUPE LINAGORA 74-80 rue Roque de Fillol 92800 Puteaux +33 (0)8 10 25 12 51 +33 (0)6 45 63 27 17 aduprat(a)linagora.com ------------------ La présente transmission contient des informations confidentielles appartenant à Linagora, exclusivement destinées au(x) destinataire(s) identifié(s) ci-dessus. Si vous n'en faites pas partie, toute reproduction, distribution ou divulgation de tout ou partie des informations de cette transmission, ou toute action effectuée sur la base de celles-ci vous sont formellement interdites. Si vous avez reçu cette transmission par erreur, nous vous remercions de nous en avertir et de la détruire de votre système d'information. The present transmission contains privileged and confidential information belonging to Linagora, exclusively intended for the recipient(s) thereabove identified. If you are not one of these aforementioned recipients, any reproduction, distribution, disclosure of said information in whole or in part, as well as any action undertaken on the basis of said information are strictly prohbited. If you received the present transmission by mistake, please inform us and destroy it from your messenging and information systems.

2 2

Sender address when notifying original recipient
by Christoph Pleger 23 May '17

23 May '17

Hello, I am using sieve with notification of the original recipient in the case that an email has been identified to contain a virus. After upgrading dovecot from 2.2.21 to 2.2.29.1, I now detected that in these notifications, their sender address is now <postmaster@>, instead of <postmaster(a)mailserver.domain>, like it was before. Is it possible to revert to the old format? Regards Christoph

3 5

Dovecot pop3 feature
by Markus Eckerl 22 May '17

22 May '17

Hi all, we are using dovecot since several years without any problems or trouble. Now we are having trouble with a few of our customers - they are trying to fetch their emails every few seconds (3-5!). These customers are using Microsoft Exchange Server and also all of these customers are cared by the same IT Professional... Is it possible to send a pop3 "LOGIN-DELAY" if the customers last login is only a few seconds away? A simple firewall rule for rate limiting is not possible because most of them are business customers and they are connected using NAT. In RFC2449 <https://www.iana.org/assignments/pop3-extension-mechanism/pop3-extension-me…> I read that the pop3 capability "LOGIN-DELAY" exists. But it seems that dovecot does not offer this? Why? Kind regards Markus

2 1

Configuration is not working with Thunderbird
by Quark 22 May '17

22 May '17

Hi, I'm new to the list (and postfix / dovecot), so if I mistakenly omit something, then please forgive me. I cannot log into Thunderbird via IMAP with my configuration. However, I can check the mail of each user by logging into their user account & then using the "mail" command. Is there something that is wrong with my config to not allow me to log into Thunderbird (Version 52.1.1)? I'm using Postfix 3.1.0 if that helps. Any help would be greatly appreciated. Thanks! Here is the output of "|dovecot -n"|: # 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.13 (7b14904) 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:105: listen=..:port has been replaced by service { inet_listener { port } } doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:105: protocol { listen } has been replaced by service { inet_listener { address } } doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:106: ssl_listen=..:port has been replaced by service { inet_listener { port } } doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:106: protocol { ssl_listen } has been replaced by service { inet_listener { address } } # OS: Linux 4.4.0-77-generic x86_64 Ubuntu 16.04.2 LTS mail_location = maildir:~/Maildir namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } protocols = imap service imap-login { inet_listener imap { address = * port = 143 } inet_listener imaps { address = * port = 993 } } ssl_cert = </etc/letsencrypt/live/REDACTED/fullchain.pem ssl_key = </etc/letsencrypt/live/REDACTED/privkey.pem userdb { driver = passwd } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep }

2 5

Backing up and restoring maildir folders
by Timothy D Legg 22 May '17

22 May '17

Hello, I am migrating to a different distribution of Linux that involves changing to an earlier version of dovecot (2.2.22 to 2.2.13). As part of this process, I will be copying several maildirs to the new machine. One of these has a number of files and directories that resemble this one example: cur/ dovecot.index dovecot.index.cache dovecot.index.log dovecot.mailbox.log dovecot-uidlist dovecot-uidvalidity dovecot-uidvalidity.59206030 .Drafts/ new/ .Sent/ subscriptions tmp/ .Trash/ Is it good enough to simply stop dovecot and tar this folder, and others like it, and copy them back to a similar location on the new installation? I haven't yet seen anything that resembles an official or standardized backup/recovery method for dovecot. With thanks and appreciation, Tim Legg

2 1

core from 2.2.29.1
by Luciano Mannucci 22 May '17

22 May '17

I've got this in my logfile, should I worry? May 19 14:45:04 imap(liscia_mcs): Panic: file mail-index-transaction-update.c: line 19 (mail_index_transaction_lookup): assertion failed: (seq >= t->first_new_seq && seq <= t->last_new_seq) May 19 14:45:04 imap(liscia_mcs): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x9cd16) [0xb7568d16] -> /usr/lib/dovecot/libdovecot.so.0(+0x9cd9f) [0xb7568d9f] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0xb74f204e] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xe3ebf) [0xb76b7ebf] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xe730c) [0xb76bb30c] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_lookup_uid+0x1d) [0xb76bf47d] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_cache_decision_state_update+0xac) [0xb769ff8c] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_cache_lookup_headers+0x7f) [0xb76a23bf] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xb2898) [0xb7686898] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_get_first_header+0xbf) [0xb768723f] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_get_first_header+0x45) [0xb7601e95] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xb4fc1) [0xb7688fc1] -> /usr/lib/dovecot/libdovecot-storage.so.0(+ 0xb518f) [0xb768918f] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_close+0x136) [0xb76896e6] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_save_cancel+0x6c) [0xb761085c] -> dovecot/imap() [0x8052e1d] -> dovecot/imap() [0x805303c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x67) [0xb7580997] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xeb) [0xb75823ab] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x45) [0xb7580a55] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x48) [0xb7580c18] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x2d) [0xb74fd1ad] -> dovecot/imap(main+0x344) [0x806dbc4] -> /lib/libc.so.6(__libc_start_main+0xfe) [0xb7357c2e] May 19 14:45:04 imap(liscia_mcs): Fatal: master: service(imap): child 24082 killed with signal 6 (core dumped) Here is mi doveconf -n: # 2.2.29.1 (e0b76e3): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.17 (e179378) # OS: Linux 3.0.101-105-pae i686 openSUSE 11.4 (i586) ext3 auth_cache_size = 3 k auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain login auth_verbose = yes default_client_limit = 1249 default_vsz_limit = 712 M disable_plaintext_auth = no first_valid_gid = 0 first_valid_uid = 100 info_log_path = /var/log/dovecot/logfile.info listen = * log_path = /var/log/dovecot/logfile login_greeting = Dovecot at Baobab ready. login_trusted_networks = 127.0.0.0/8 212.45.144.0/24 192.168.134.0/24 mail_location = mbox:/var/spool/mailboxes/%u:INBOX=/var/spool/mail/%u:DIRNAME=mbox:INDEX=/var/dovecot_indexes/%u maildir_copy_with_hardlinks = no managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mbox_lock_timeout = 443 secs namespace { inbox = yes location = prefix = separator = . type = private } passdb { driver = pam } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size } protocols = pop3 imap service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service imap-login { inet_listener imaps { address = * } process_limit = 512 } service pop3-login { chroot = executable = pop3-login -D inet_listener pop3s { address = * } process_limit = 512 } ssl_ca = </etc/ssl/ca.crt ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = # hidden, use -P to show it userdb { driver = passwd } version_ignore = yes protocol imap { imap_client_workarounds = delay-newmail mail_plugins = mail_log notify } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_enable_last = yes } protocol lda { info_log_path = /var/log/dovecot/lda.log log_path = /var/log/dovecot/lda-errors.log postmaster_address = postmaster(a)mcs.it } 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/

1 0

Re: Pacaging/build issues with AIX and vac (dovecot-2.2.25)
by seema pandhre 22 May '17

22 May '17

Hi Micheal, I am currently working on AIX + VAC + NTPv4 build. and I have also faced same issues as mentioned by you in link https://www.dovecot.org/list/dovecot/2016-October/105597.html Wondering if you have got any resolution for above issue. If yes, please help me with your guidance. thanks in advance, seema

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Using Dovecot for a Geo-replicated World-wide Email Service
by Lennart Oldenburg 22 May '17

22 May '17

Hello everyone, my colleagues and I from Technische Universität Berlin are currently looking into the best way to setup a Dovecot-powered email service that is simultaneously accessible world-wide and still provides short response times by redirecting users to the geographically-closest cluster. We imagine the setup to make use of multiple data center regions in public clouds around the world, e.g. in Amazon Web Services (AWS) or Google Compute Platform (GCP). At the same time, state is considered to be shared, i.e. changes made on file system in any local cluster will have to be synchronized with all other clusters around the globe (mailbox replication) and mailboxes might be manipulated from any data center in the world, potentially at the same time. Naturally, problems arise. We have multiple questions and would be very interested in the best way to approach them based on your experiences and recommendations: 1) Which path should we take replication-wise? Please keep in mind that we are targeting replication between more than 2 clusters. Traditionally, in a rather small local setup with mostly reliable network, a distributed file system such as NFS or GlusterFS might be the best option. Unfortunately, though, when scaling to more than 2 data centers geographically-distributed around the globe, latency becomes severe and distributed file systems might not be the way to go anymore. What is your recommendation for replicating state? 2) We are mostly interested in providing short response times to client requests while maintaining global state consistency (that is, avoiding conflicts in state and not losing any user data). What are your recommendations in that direction? Any particular performance optimizations we could apply to Dovecot? 3) Is there a recommended way to measure and monitor Dovecot's service quality? For example, is there a way to export "live" metrics of a running Dovecot deployment to something such as Prometheus (https://prometheus.io)? 4) Maildir as the way to represent mailboxes and deliver emails on file system is kind of a given. I wonder, though, how well is dbox replicatable? What happens when dbox files are synchronized (e.g. via dsync) and a conflict arises? Does dbox offer a performance improvement over Maildir? 5) We perceive Dovecot to come with many optimizations to speed up "read" IMAP commands, i.e. non-state-changing ones. Is this perception correct? Or is Dovecot able to use its various index and log files for fast "write" IMAP commands (e.g. CREATE, DELETE, RENAME, APPEND, STORE, ...) as well? 6) Would DovecotPRO by Dovecot Oy offer any advantage to state replication? For example, could the Object Storage Plugin be used to replicate mailboxes through some object store service offered world-wide? 7) Is the setup we have in mind based on Dovecot a feasible solution for world-wide email comparable to services like Gmail? If not, what would you change or not do at all? Please excuse if some questions might be of rather basic nature, we are not at all Dovecot experts. I tried to gather as much information on that topic as possible from the wiki and sources found online but I might have missed an important page. In that case, please point me towards existing resources on the questions raised above. Thanks in advance and kind regards, Lennart Oldenburg

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Sieve GLOBAL + Sieve LOCAL
by Luescher Claude 19 May '17

19 May '17

Hello List, I am using dovecot: ii dovecot-antispam 2.0+20130822-2 amd64 Dovecot plugins for training spam filters ii dovecot-core 1:2.2.10-1 amd64 secure POP3/IMAP server - core files ii dovecot-imapd 1:2.2.10-1 amd64 secure POP3/IMAP server - IMAP daemon ii dovecot-ldap 1:2.2.10-1 amd64 secure POP3/IMAP server - LDAP support ii dovecot-lmtpd 1:2.2.10-1 amd64 secure POP3/IMAP server - LMTP server ii dovecot-managesieved 1:2.2.10-1 amd64 secure POP3/IMAP server - ManageSieve server ii dovecot-mysql 1:2.2.10-1 amd64 secure POP3/IMAP server - MySQL support ii dovecot-pop3d 1:2.2.10-1 amd64 secure POP3/IMAP server - POP3 daemon ii dovecot-sieve 1:2.2.10-1 amd64 secure POP3/IMAP server - Sieve filters support doveconf -n | grep -i sieve managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave editheader vnd.dovecot.duplicate sieve = ~/.dovecot.sieve sieve_after = ~/sieve_after sieve_dir = ~/sieve sieve_extensions = +editheader +vnd.dovecot.duplicate sieve_max_redirects = 20 protocols = " imap lmtp sieve pop3" service managesieve-login { inet_listener sieve { mail_plugins = " quota sieve" mail_plugins = " quota sieve" I would like to have a Global and per user based Local sieve_before file. Since doveconf does not indicate I believe my version does not support: sieve_global_path A path to a global sieve script file, which gets executed ONLY if user's private Sieve script doesn't exist, e.g. /var/lib/dovecot/default.sieve. Be sure to pre-compile this script manually using the sievec command line tool, as explained below. But what I would need is execute a global sieve_before for all users to apply some spam selection rules. Did anybody easily achieved it? An obvious workaround would be to create a script which goes through all current users mail directories and creates a sieve_before script with the settings I need and then modify the user creation to do the same when new mailboxes get created. Thank you!

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lmtp segfault after upgrade
by Tom Sommer 19 May '17

19 May '17

I just upgraded our Director to 2.2.29.1 from 2.2.26, and now my dmesg and /var/log/messages are getting flooded by these errors: lmtp[45758]: segfault at 21 ip 00007fb412d3ad11 sp 00007ffe83ad2df0 error 4 in libdovecot.so.0.0.0[7fb412c95000+11c000] lmtp[46304]: segfault at 91 ip 00007f771ba64d11 sp 00007ffe830635a0 error 4 in libdovecot.so.0.0.0[7f771b9bf000+11c000] lmtp[45775]: segfault at 21 ip 00007f206ed81d11 sp 00007ffd0f0daad0 error 4 in libdovecot.so.0.0.0[7f206ecdc000+11c000] lmtp[46649]: segfault at 21 ip 00007ff4aa027d11 sp 00007ffc05841430 error 4 in libdovecot.so.0.0.0[7ff4a9f82000+11c000] lmtp[45774]: segfault at 21 ip 00007ff1f3e0bd11 sp 00007ffe0ba00340 error 4 in libdovecot.so.0.0.0[7ff1f3d66000+11c000] lmtp[45776]: segfault at 411 ip 00007f96ded95d11 sp 00007ffce6401870 error 4 in libdovecot.so.0.0.0[7f96decf0000+11c000] lmtp[46896]: segfault at 21 ip 00007fbf1aa70d11 sp 00007ffc79e22bf0 error 4 in libdovecot.so.0.0.0[7fbf1a9cb000+11c000] lmtp[46695]: segfault at 21 ip 00007fd5ccad6d11 sp 00007ffe19e759d0 error 4 in libdovecot.so.0.0.0[7fd5cca31000+11c000] lmtp[45773]: segfault at 21 ip 00007f0eb7b65d11 sp 00007fff9d02e570 error 4 in libdovecot.so.0.0.0[7f0eb7ac0000+11c000] lmtp[47101]: segfault at 21 ip 00007fa95b052d11 sp 00007fff2d5485a0 error 4 in libdovecot.so.0.0.0[7fa95afad000+11c000] lmtp[45772]: segfault at 21 ip 00007f2f52b49d11 sp 00007fff99a4a6e0 error 4 in libdovecot.so.0.0.0[7f2f52aa4000+11c000] lmtp[46595]: segfault at 21 ip 00007f0ccbdbad11 sp 00007ffd17bfe9e0 error 4 in libdovecot.so.0.0.0[7f0ccbd15000+11c000] lmtp[45770]: segfault at 21 ip 00007f94a576ed11 sp 00007ffc29c2ff00 error 4 in libdovecot.so.0.0.0[7f94a56c9000+11c000] lmtp[45769]: segfault at 21 ip 00007f34999b5d11 sp 00007ffe28818350 error 4 in libdovecot.so.0.0.0[7f3499910000+11c000] lmtp[47371]: segfault at 21 ip 00007f13c611fd11 sp 00007ffcdb000b10 error 4 in libdovecot.so.0.0.0[7f13c607a000+11c000] lmtp[47419]: segfault at 21 ip 00007f4010ff2d11 sp 00007ffd97519420 error 4 in libdovecot.so.0.0.0[7f4010f4d000+11c000] lmtp[47511]: segfault at 581 ip 00007fd5e3d21d11 sp 00007ffce61f29c0 error 4 in libdovecot.so.0.0.0[7fd5e3c7c000+11c000] lmtp[47277]: segfault at 21 ip 00007f04c3d6cd11 sp 00007ffc421da1b0 error 4 in libdovecot.so.0.0.0[7f04c3cc7000+11c000] lmtp[45771]: segfault at 21 ip 00007f55c690ed11 sp 00007fff35521fc0 error 4 in libdovecot.so.0.0.0[7f55c6869000+11c000] lmtp[47543]: segfault at 21 ip 00007f11ea946d11 sp 00007ffdd9a97690 error 4 in libdovecot.so.0.0.0[7f11ea8a1000+11c000] lmtp[47669]: segfault at 21 ip 00007f8f58abbd11 sp 00007ffdd5573220 error 4 in libdovecot.so.0.0.0[7f8f58a16000+11c000] lmtp[46959]: segfault at 41 ip 00007ff9d6f3ed11 sp 00007ffe28dc8ea0 error 4 in libdovecot.so.0.0.0[7ff9d6e99000+11c000] Any ideas? -- Tom

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