January 2016 - dovecot

[Dovecot] Replication and public namespaces
by Markus Weippert 11 Apr '16

11 Apr '16

Hi, I'm having some issues with replicating public namespaces. Everything seems to work fine for private namespaces, but while importing some huge mailboxes (many small mails) into a public namespace via imapsync, something goes wrong. The expected mail flow is: old-server (imapsync)> new-server1 (replication)> new-server2 But then, dovecot seems to run into race conditions when the replications process tries to sync the same public mailbox under two or more different users at the same time. As a result, messages get duplicated, new-server2 sends those back to new-server1 which then starts to produce duplicates too. If I don't kill the processes in time and delete the faulty mailbox, they start to produce thousands of mails. In fact, server2 should not export messages at all, since it's not productive yet and does not get any mail except from the replication. The only thing getting logged (only few compared to the huge amount of duplicates produced): "dsync-server(user(a)example.com): Warning: Maildir /...: Expunged message reappeared, giving a new UID" Is there any way to fix this? Regards, Markus doveadm_password = *********** doveadm_port = ***** mail_home = /var/vmail/private/%d/%n mail_location = maildir:~/mail mail_plugins = acl virtual listescape notify replication namespace inbox { inbox = yes location = prefix = separator = / type = private } namespace legacy { alias_for = # ... } namespace ns_public { list = children location = maildir:/var/vmail/public/%d prefix = Public/ separator = / subscriptions = no type = public } namespace virtual { # ... } plugin { mail_replica = tcps:************** } protocols = imap lmtp sieve replication_dsync_parameters = -d -l 60 -N -x virtual -x ns_public -U replication_full_sync_interval = 4 hours replication_max_conns = 20 service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service doveadm { inet_listener { port = 8143 ssl = yes } process_min_avail = 5 user = vmail vsz_limit = 4 G } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } }

3 7

dsync issues due to Prefix difference?
by Mark Little 01 Mar '16

01 Mar '16

Hi everyone, I'm hoping I am just missing something obvious - but I cannot seem to get a one-way migration dsync working between two Dovecot servers because the Prefix configuration is different. I am doing a migration from our old Dovecot servers to some new cPanel based ones. Source: 2.2.15 Dest: 2.2.21 Here is the debug output for the sync: doveadm(root): Debug: Loading modules from directory: /usr/lib/dovecot/modules/doveadm doveadm(root): Debug: Module loaded: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_sieve_plugin.so doveadm(testuser(a)example.ca): Debug: Effective uid=1322, gid=1322, home=/khstor3/khmail-mailboxes/l/li/example.ca/testuser doveadm(testuser(a)example.ca): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir doveadm(testuser(a)example.ca): Debug: maildir++: root=/khstor3/khmail-mailboxes/l/li/example.ca/testuser/Maildir, index=, indexpvt=, control=, inbox=/khstor3/khmail-mailboxes/l/li/example.ca/testuser/Maildir, alt= doveadm(testuser(a)example.ca): Debug: Namespace : Using permissions from /khstor3/khmail-mailboxes/l/li/example.ca/testuser/Maildir: mode=0777 gid=default stdin: is not a tty dsync-local(testuser(a)example.ca): Debug: brain M: Local mailbox tree: INBOX guid=f055ac07d79cad508a7a000075e38adc uid_validity=1353555159 uid_next=2085 subs=no last_change=0 last_subs=0 dsync-local(testuser(a)example.ca): Debug: brain M: Local mailbox tree: Junk guid=703a8b1d51ceab56f91e0000667eee40 uid_validity=1391566942 uid_next=1 subs=yes last_change=0 last_subs=1454100049 dsync-local(testuser(a)example.ca): Debug: brain M: Local mailbox tree: Trash guid=9bee9f0f2aacb65039260000b171e44d uid_validity=1353555163 uid_next=25 subs=no last_change=0 last_subs=0 dsync-local(testuser(a)example.ca): Debug: brain M: Local mailbox tree: Drafts guid=4d03661058a0f1524f240000e9d81ad0 uid_validity=1391566936 uid_next=1 subs=no last_change=0 last_subs=0 dsync-local(testuser(a)example.ca): Debug: brain M: Local mailbox tree: Sent guid=99ee9f0f2aacb65039260000b171e44d uid_validity=1353555161 uid_next=4 subs=no last_change=0 last_subs=0 dsync-local(testuser(a)example.ca): Debug: brain M: Remote mailbox tree: INBOX guid=6460141741cfab5643470000afb0d608 uid_validity=1454100291 uid_next=2064 subs=no last_change=0 last_subs=0 dsync-local(testuser(a)example.ca): Debug: brain M: Remote mailbox tree: INBOX.Trash guid=6360141741cfab5643470000afb0d608 uid_validity=1454100290 uid_next=12 subs=yes last_change=0 last_subs=1454100289 dsync-local(testuser(a)example.ca): Debug: brain M: Remote mailbox tree: INBOX.Sent guid=6260141741cfab5643470000afb0d608 uid_validity=1454100289 uid_next=2 subs=yes last_change=0 last_subs=1454100289 dsync-remote(testuser(a)example.ca): Error: Couldn't find namespace for mailbox Junk I believe the problem is because on the source we have no prefix set, but on the destination it has INBOX as the prefix. I need to use dsync because we have many POP3 clients so I need to ensure the UIDL's are copied correctly. Here is the output from 'doveconf namespace': Source: namespace inbox { disabled = no hidden = no ignore_on_failure = no inbox = yes list = yes location = mailbox Drafts { auto = subscribe driver = special_use = \Drafts } mailbox Junk { auto = subscribe driver = special_use = \Junk } mailbox Sent { auto = subscribe driver = special_use = \Sent } mailbox "Sent Messages" { auto = no driver = special_use = \Sent } mailbox Trash { auto = subscribe driver = special_use = \Trash } order = 0 prefix = separator = subscriptions = yes type = private } Destination: namespace { disabled = no hidden = no ignore_on_failure = no inbox = yes list = yes location = mailbox Archive { auto = create autoexpunge = 0 comment = driver = special_use = \Archive } mailbox Archives { auto = no autoexpunge = 0 comment = driver = special_use = \Archive } mailbox Drafts { auto = subscribe autoexpunge = 0 comment = driver = special_use = \Drafts } mailbox Junk { auto = create autoexpunge = 0 comment = driver = special_use = \Junk } mailbox Sent { auto = subscribe autoexpunge = 0 comment = driver = special_use = \Sent } mailbox "Sent Messages" { auto = no autoexpunge = 0 comment = driver = special_use = \Sent } mailbox Trash { auto = subscribe autoexpunge = 0 comment = driver = special_use = \Trash } order = 0 prefix = INBOX. separator = subscriptions = yes type = private } If anyone could provide some assistance it would be greatly appreciated! Thanks, Mark

2 6

Dovecot with pam authentication and user@domain
by Christian Schneider 08 Feb '16

08 Feb '16

Hello all, I'm trying to setup dovecot for local users with pam authentication. The passdb and userdb entries are as follows: passdb { args = username_format=%n driver = pam } userdb { args = username_format=%n driver = passwd } Using "doveadm user chriss" returns the user record as expected, but "doveadm user chriss(a)testmail.ch-sc.de" gives an error: field valueuserdb lookup: user chriss(a)testmail.ch-sc.de doesn't exist As far as I understand, username_format=%n should drop the domain part and only search for the user in the userdb, but it doesn't. What am I missing? Greetings Christian

1 1

Dovecot with Maildir
by John Williams 03 Feb '16

03 Feb '16

Folks, I'm trying to get dovecot to check a for mail in a maildir format on Ubuntu. Mail is being delivered to and from the system. I can send and receive mail using Pine & Mutt. But I cannot seem to get dovecot to work with the maildir. So I can't check for mail using Dovecot. This is what I'm using for reference: https://help.ubuntu.com/community/Dovecot I believe (not sure actually) the answer is in the mail_location variable for Dovecot. This is what I've tried so far: #mail_location = mbox:~/mail:INBOX=/var/mail/%u#mail_location = maildir:/var/mail/%u/Maildir#mail_location = maildir:~/Maildir:INDEX=/var/mail/%umail_location = maildir:/var/mail/%u/Maildir Mail is being delivered and I can send mail out with Postfix. But Dovecot not working. Any idea why? Thanks in advance!

2 4

Disable Client Certificate Authentication for Unencrypted Connections?
by Haravikk 02 Feb '16

02 Feb '16

I’m using dovecot to provide encrypted IMAP e-mail support for remote clients and it’s working great. However, I also need to set up a webmail front-end (Roundcube), which I’m hoping to have use unencrypted IMAP on port 143 (as only port 993 is available externally). The problem I’m running into is that I want to require client certificate authentication on port 993, but dovecot is apparently requiring a certificate on all connections, which is preventing Roundcube from connecting. Since dovecot is also providing authentication to postfix I’ve already created an exemption from the client certificate requirement for SMTP connections by doing the following: protocol !smtp { ssl_ca = </path/to/ca.pem ssl_verify_client_cert = yes auth_ssl_require_client_cert = yes } However, I’m not sure how to do the same thing for unencrypted IMAP connections. Is there a way that I can enable client certificate support for only IMAP port 993, leaving port 143 to handle regular unencrypted IMAP with a username and password? I’ve already added the local network to the trusted networks list, so that Roundcube can use plaintext authentication, can I limit client certificate support in a similar way? Thanks, Haravikk

3 7

Can you "doveadm search" with mailbox location instead of a user (-u option)?
by Christian Rohmann 02 Feb '16

02 Feb '16

Hey dovecot-users! doveadm import offers to use i.e. a maildir as source and then import into a users mailbox referenced via "-u" option. If one wants to import only certain emails from the source a search-query can be given as well. I was wondering if doveadm search also does offer to search a mailbox referenced by filesystem path i.e. doveadm search maildir:/srv/mailboxes/example.com/mailbox123 NEW Maybe a fixed mailbox location via "-o mailbox_location=maildir:/srv/mailboxes/example.com/mailbox123" does work, but then it's rather a side effect as one needs to define a user via "-u" parameter anyways. Regards Christian

2 2

fts_autoindex - index-worker problem
by Masaki Nemoto 01 Feb '16

01 Feb '16

dovecot-2.2.21 問い合わせ fts_autoindex - index-worker problem Hello List, I installed dovecot-2.2.21 on CentOS 6.7. I use ldap for userdb to separate an e-mail address and the user. Index to apache solr failed in fts_authindex when I received an email after setting. The error message is "indexer-worker: Error: User 0029(a)09.jp lookup failed: Unknown user" Is there any solution? This is current conf -------------------------------------------- # cat /etc/dovecot/conf.d/auth-ldap.conf.ext userdb { driver = ldap default_fields = uid=dovecot gid=dovecot home=/var/dovecot/%Ld/%Ln args = /etc/dovecot/dovecot-ldap.conf.ext } -------------------------------------------- # cat /etc/dovecot/dovecot-ldap.conf.ext hosts = ldap01 auth_bind = no ldap_version = 3 base = "" user_attrs = mailRoutingAddress=user, storeQuotaBytes=quota_rule=*:bytes=%$ user_filter = (&(objectClass=inetLocalMailRecipient)(mailLocalAddress=%u)) -------------------------------------------- # cat /etc/dovecot/conf.d/90-plugin.conf plugin { fts = solr fts_solr = url=http://10.129.78.21:8983/solr/%Ld/ fts_autoindex = yes } -------------------------------------------- This is test user infomation -------------------------------------------- # ldapsearch -h ldap01 -x -b "" mailLocalAddress=gk12k_0029(a)08wt09.jp mailRoutingAddress mailLocalAddress -LLL dn: uid=gk12k_0029,dc=08wt09,dc=jp mailRoutingAddress: 0029(a)09.jp mailLocalAddress: gk12k_0029(a)08wt09.jp -------------------------------------------- dovecot log of the problem ------------------ Jan 31 01:19:51 store01 dovecot: lmtp(24252): Connect from 10.129.75.77 Jan 31 01:19:51 store01 dovecot: lmtp(0029(a)09.jp): copy from <lmtp DATA>: box=INBOX, uid=40, msgid=<foobar>, size=377 Jan 31 01:19:51 store01 dovecot: lmtp(0029(a)09.jp): pdn7JafirFa8XgAAbv3f4A: from=hogehoge(a)example.jp, to=gk12k_0029(a)08wt09.jp, vsize=388, msgid=<foobar>, saved mail to INBOX Jan 31 01:19:51 store01 dovecot: lmtp(24252): Disconnect from 10.129.75.77: Successful quit Jan 31 01:19:51 store01 dovecot: indexer-worker: Error: User 0029(a)09.jp lookup failed: Unknown user openldap log ------------------ Jan 31 01:19:51 ldap01 slapd[21617]: conn=1291 op=1 SRCH base="" scope=2 deref=0 filter="(&(objectClass=inetLocalMailRecipient)(mailLocalAddress=gk12k_0029(a)08wt09.jp))" Jan 31 01:19:51 ldap01 slapd[21617]: conn=1291 op=1 SRCH attr=mailRoutingAddress storeQuotaBytes Jan 31 01:19:51 ldap01 slapd[21617]: conn=1291 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 fd=19 ACCEPT from IP=10.129.78.22:58335 (IP=0.0.0.0:389) Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=0 BIND dn="" method=128 Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=0 RESULT tag=97 err=0 text= Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=1 SRCH base="" scope=2 deref=0 filter="(mailRoutingAddress=0029(a)09.jp)" Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=1 SRCH attr=modifyTimestamp Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=2 SRCH base="uid=gk12k_0029,dc=08wt09,dc=jp" scope=0 deref=0 filter="(objectClass=*)" Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=2 SRCH attr=storeSieveScript Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=2 SEARCH RESULT tag=101 err=0 nentries=1 text= Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 op=3 UNBIND Jan 31 01:19:51 ldap01 slapd[21617]: conn=1292 fd=19 closed Jan 31 01:19:51 ldap01 slapd[21617]: conn=1291 op=2 SRCH base="" scope=2 deref=0 filter="(&(objectClass=inetLocalMailRecipient)(mailLocalAddress=0029(a)09.jp))" Jan 31 01:19:51 ldap01 slapd[21617]: conn=1291 op=2 SRCH attr=mailRoutingAddress storeQuotaBytes Jan 31 01:19:51 ldap01 slapd[21617]: conn=1291 op=2 SEARCH RESULT tag=101 err=0 nentries=0 text= ------------------------------------------- Log when I deleted "fts_autoindex = yes" ------------------------------------------- Jan 31 01:18:12 store01 dovecot: lmtp(24232): Connect from 10.129.75.77 Jan 31 01:18:13 store01 dovecot: lmtp(0029(a)09.jp): copy from <lmtp DATA>: box=INBOX, uid=39, msgid=<foobar>, size=377 Jan 31 01:18:13 store01 dovecot: lmtp(0029(a)09.jp): 10FxNETirFaoXgAAbv3f4A: from=hogehoge(a)example.jp, to=gk12k_0029(a)08wt09.jp, vsize=388, msgid=<foobar>, saved mail to INBOX Jan 31 01:18:13 store01 dovecot: lmtp(24232): Disconnect from 10.129.75.77: Successful quit ------------------------------------------- Jan 31 01:18:12 ldap01 slapd[21617]: conn=1289 op=1 SRCH base="" scope=2 deref=0 filter="(&(objectClass=inetLocalMailRecipient)(mailLocalAddress=gk12k_0029(a)08wt09.jp))" Jan 31 01:18:12 ldap01 slapd[21617]: conn=1289 op=1 SRCH attr=mailRoutingAddress storeQuotaBytes Jan 31 01:18:12 ldap01 slapd[21617]: conn=1289 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 fd=19 ACCEPT from IP=10.129.78.22:58332 (IP=0.0.0.0:389) Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=0 BIND dn="" method=128 Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=0 RESULT tag=97 err=0 text= Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=1 SRCH base="" scope=2 deref=0 filter="(mailRoutingAddress=0029(a)09.jp)" Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=1 SRCH attr=modifyTimestamp Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=2 SRCH base="uid=gk12k_0029,dc=08wt09,dc=jp" scope=0 deref=0 filter="(objectClass=*)" Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=2 SRCH attr=storeSieveScript Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=2 SEARCH RESULT tag=101 err=0 nentries=1 text= Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 op=3 UNBIND Jan 31 01:18:12 ldap01 slapd[21617]: conn=1290 fd=19 closed ------------------------------------------- -- Masaki

2 2

basic configuratio error
by soko.tica 01 Feb '16

01 Feb '16

Hello list, After many hours I still fail to configure properly dovecot as the LDA with opensmtpd, for system users only. I don't want pop at all, jus lmtp and imap, but still haven't stripped it. Here is the info, thanks in advance for your response: ===== # doveconf -n # 2.2.14: /etc/dovecot/dovecot.conf # OS: OpenBSD 5.6 i386 auth_verbose = yes auth_verbose_passwords = yes disable_plaintext_auth = no first_valid_uid = 1000 hostname = imap.home.lan imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lda_original_recipient_header = X-Original-To mail_debug = yes mail_location = maildir:~/Maildir 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 duplicate mbox_write_locks = fcntl mmap_disable = yes 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 = bsdauth } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh postmaster_address = postmaster(a)mileva.home.lan protocols = imap pop3 lmtp sieve service auth-worker { user = root } service auth { unix_listener auth-userdb { group = _dovenull mode = 0666 user = _dovenull } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 0 service_count = 1 } service imap { process_limit = 1024 } service lmtp { unix_listener lmtp { mode = 0666 } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } ssl_cert = </etc/ssl/dovecotcert.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } verbose_ssl = yes protocol lmtp { mail_plugins = } protocol lda { mail_plugins = } # /usr/local/sbin/dovecot -F Oct 28 13:00:01 mileva newsyslog[1110]: logfile turned over Oct 28 14:30:46 mileva dovecot: master: Dovecot v2.2.14 starting up for imap, pop3, lmtp, sieve Oct 28 14:30:46 mileva dovecot: master: Error: service(aggregator): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(pop3): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: open(/var/dovecot/login-master-notifya57a2b8821460734) failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(pop3-login): safe_mkstemp(/var/dovecot/login-master-notify) failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(log): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(lmtp): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(ipc): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(indexer-worker): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(indexer): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(imap): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(imap-urlauth-worker): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(imap-urlauth): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: open(/var/dovecot/login-master-notify5dd2a3a0591effcc) failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(imap-urlauth-login): safe_mkstemp(/var/dovecot/login-master-notify) failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: open(/var/dovecot/login-master-notify152a1bb891f6f764) failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(imap-login): safe_mkstemp(/var/dovecot/login-master-notify) failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(doveadm): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(dns_client): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(director): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(dict): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(config): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(auth): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(auth-worker): pipe() failed: Too many open files Oct 28 14:30:46 mileva dovecot: master: Error: service(anvil): command startup failed, throttling for 2 secs Oct 28 14:30:56 mileva dovecot: master: Error: service(ssl-params): command startup failed, throttling for 2 secs [snipped 18 pages of /var/log/maillog] Oct 28 20:47:44 mileva dovecot: master: Dovecot v2.2.14 starting up for imap, pop3, lmtp, sieve Oct 28 20:47:44 mileva dovecot: master: Error: service(aggregator): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(pop3): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: open(/var/dovecot/login-master-notifydd522320d99e7f4c) failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(pop3-login): safe_mkstemp(/var/dovecot/login-master-notify) failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(log): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(lmtp): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(ipc): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(indexer-worker): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(indexer): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(imap): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(imap-urlauth-worker): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(imap-urlauth): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: open(/var/dovecot/login-master-notify95aa9b38117677e4) failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(imap-urlauth-login): safe_mkstemp(/var/dovecot/login-master-notify) failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: open(/var/dovecot/login-master-notify4d021350494e6f7c) failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(imap-login): safe_mkstemp(/var/dovecot/login-master-notify) failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(doveadm): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(dns_client): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(director): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(dict): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(config): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(auth): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(auth-worker): pipe() failed: Too many open files Oct 28 20:47:44 mileva dovecot: master: Error: service(anvil): command startup failed, throttling for 2 secs Oct 28 20:47:46 mileva dovecot: master: Warning: Killed with signal 2 (by pid=0 uid=0 code=kill) Oct 28 20:47:46 mileva dovecot: master: Error: open(/var/dovecot/.temp.mileva.home.lan.17422.055a8b6881266714) failed: Too many open files Oct 28 20:47:46 mileva dovecot: master: Error: file_dotlock_open(/var/dovecot/instances) failed: Too many open files Oct 28 20:47:46 mileva dovecot: master: Error: service(ssl-params): command startup failed, throttling for 2 secs # /usr/sbin/smtpd -n configuration OK

2 3

Dovecot 2.2.21 - segfault
by Robert Blayzor 31 Jan '16

31 Jan '16

dovecot --version 2.2.21 (5345f22) FreeBSD 10.2-RELEASE-p11 FreeBSD 10.2-RELEASE-p11 #0 r294908M: amd64 Core was generated by `dovecot'. Program terminated with signal 11, Segmentation fault. Reading symbols from /usr/local/lib/dovecot/libdovecot.so.0...done. Loaded symbols for /usr/local/lib/dovecot/libdovecot.so.0 Reading symbols from /lib/libc.so.7...Reading symbols from /usr/lib/debug//lib/libc.so.7.debug...done. done. Loaded symbols for /lib/libc.so.7 Reading symbols from /libexec/ld-elf.so.1...Reading symbols from /usr/lib/debug//libexec/ld-elf.so.1.debug...done. done. Loaded symbols for /libexec/ld-elf.so.1 #0 0x0000000800910c74 in io_loop_time_refresh () at ioloop.c:635 635 ioloop.c: No such file or directory. in ioloop.c (gdb) bt full #0 0x0000000800910c74 in io_loop_time_refresh () at ioloop.c:635 No locals. #1 0x0000000800910961 in io_loop_timeouts_start_new (ioloop=0x801421080) at ioloop.c:436 to_idx = (struct timeout * const *) 0x801419880 #2 0x0000000800910915 in io_loop_handler_run (ioloop=0x801421080) at ioloop.c:606 No locals. #3 0x000000080091073f in io_loop_run (ioloop=0x801421080) at ioloop.c:583 No locals. #4 0x000000080086aaab in master_service_run (service=0x80141b140, callback=0) at master-service.c:640 No locals. #5 0x0000000000406509 in main (argc=3, argv=0x7fffffffb4c0) at main.c:888 set = (struct master_settings *) 0x801429110 error = 0x800caa2c3 "H\203Ä ]Ã\017\037\200" doveconf_arg = 0x0 orig_info_callback = (failure_callback_t *) 0x8008f0220 <i_syslog_error_handler> orig_debug_callback = (failure_callback_t *) 0x8008f0220 <i_syslog_error_handler> foreground = false ask_key_pass = false i = 3 c = -1 doubleopts = <value optimized out> Current language: auto; currently minimal (gdb)

2 2

Broken MIME parts for mail
by Peer Heinlein 31 Jan '16

31 Jan '16

We're acutally using 2:2.2.21-1~auto+83 and sometimes we have in our logfiles: Jan 30 08:50:14 mailimap01 dovecot: imap(username): Error: unlink(/vmail/username/mdbox/mailboxes/foldername/dbox-Mails/dovecot.index.cache) failed: No such file or directory (in mail-cache.c:28) Jan 30 08:50:14 mailimap01 dovecot: imap(username): Error: Corrupted index cache file /vmail/username/mdbox/mailboxes/foldername/dbox-Mails/dovecot.index.cache: Broken MIME parts for mail UID 70 The mail in this folder with uid 70 looks perfect and I'm able to fetch that mail without errors. I hope this is a self-healing error in the index file without real incident to the user. But I wonder how this Error can be happen. Peer -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

2 1