I managed to find who faced to the same problem https://github.com/cyrusimap/cyrus-imapd/issues/1599 . But the bug still have open status
>Вторник, 11 апреля 2017, 12:18 +07:00 от Anton Shilov via Info-cyrus < >info-cyrus@lists.andrew.cmu.edu >: > >Users cannot access to their imap-folders. >Sometimes (once or twice a week) users complains that they cannot connect to >their mailboxes and read emails. At the same time I see such records in >maillog: >"Apr 10 15:01:01 mailserv postfix/lmtp[22843]: D64651001D37: to=< >u...@mailserv.example.com >, orig_to=< u...@example.com >, >relay=mailserv.example.com[/var/lib/imap/socket/lmtp], delay=300, >delays=0.13/0/0/300, dsn=4.4.2, status=deferred (conversation with >mailserv.example.com[/var/lib/imap/socket/lmtp] timed out while sending MAIL >FROM)». >It means mail queue increases >Also I find out lots of "PID-files" in /dev/shm/cyrus-imapd/proc which don't >contain info of linked imap-folder. For example: >"pc-user.example.com [192.168.0.11] user" >It's unhealthy situation and I don't understannd what reason is. In order to >help users I just kill their IMAP-process and make reconstruct mailbox. Please >help me with investigation of the problems. >My setup is: >-------------------------------------------- >Static hostname: mailserv >Icon name: computer-vm >Chassis: vm >Machine ID: cbb779ad0b103a10ec75c10c452e0f71 >Boot ID: c31a27599dc84971902e6c70dca26c18 >Virtualization: kvm >Operating System: CentOS Linux 7 (Core) >CPE OS Name: cpe:/o:centos:centos:7 >Kernel: Linux 3.10.0-514.6.1.el7.x86_64 >Architecture: x86-64 >-------------------------------------------- >name : Cyrus IMAPD >version : v2.4.17-Fedora-RPM-2.4.17-8.el7_1 d1df8aff 2012-12-01 >vendor : Project Cyrus >support-url: http://www.cyrusimap.org >os : Linux >os-version : 3.10.0-514.6.1.el7.x86_64 >environment: Built w/Cyrus SASL 2.1.26 >Running w/Cyrus SASL 2.1.26 >Built w/Berkeley DB 5.3.21: (May 11, 2012) >Running w/Berkeley DB 5.3.21: (May 11, 2012) >Built w/OpenSSL 1.0.1e-fips 11 Feb 2013 >Running w/OpenSSL 1.0.1e-fips 11 Feb 2013 >Built w/zlib 1.2.7 >Running w/zlib 1.2.7 >CMU Sieve 2.4 >TCP Wrappers >NET-SNMP >mmap = shared >lock = fcntl >nonblock = fcntl >idle = idled >Server Wide: >freespace: 1820105352 >------------------------------------ >imapd.conf >------------------------------------ >debug: no >commandmintimer: 2 >configdirectory: /var/lib/imap >partition-default: /var/spool/mail >proc_path: /dev/shm/cyrus-imapd/proc >mboxname_lockpath: /dev/shm/cyrus-imapd/mboxname_lock >duplicate_db_path: /dev/shm/cyrus-imapd/duplicate_db >statuscache_db_path: /dev/shm/cyrus-imapd/statuscache_db >allowplaintext: yes >allowallsubscribe: yes >allowusermoves: yes >imapidlepoll: 10 >idlemethod: idled >imapidresponse: yes >admins: cyrus >lmtp_admins: cyrus >singleinstancestore: yes >duplicatesuppression: yes >reject8bit: no >pass8bit: yes >munge8bit: no >lmtp_downcase_rcpt: no >sieveusehomedir: false >sievedir: /var/lib/imap/sieve >duplicate_db: skiplist >mboxlist_db: skiplist >postmaster: postmaster >postuser: shared >lmtp_over_quota_perm_failure: yes >lmtp_strict_quota: yes >quotawarn: 98 >sendmail: /usr/sbin/sendmail >hashimapspool: 0 >sasl_pwcheck_method: saslauthd >sasl_mech_list: PLAIN LOGIN >tls_cert_file: /var/lib/imap/SSL.crt >tls_key_file: /var/lib/imap/SSL.key >tls_ca_file: /var/lib/imap/CA_SSL.crt >tls_ca_path: /var/lib/imap >tcp_keepalive: yes >tcp_keepalive_cnt: 3 >tcp_keepalive_intvl: 10 >tcp_keepalive_idle: 180 >temp_path: /tmp >telemetry_bysessionid: yes >timeout: 40 >imapidletimeout: 0 >expunge_mode: delayed >expunge_days: 30 >deletedprefix: DELETED >delete_mode: immediate >flushseenstate: 1 >------------------------------------------- >cyrus.conf >------------------------------------------- >START { >recover<----->cmd="ctl_cyrusdb -r" >idled><------>cmd="idled" >} >SERVICES { >imap cmd="imapd" listen="imap" proto=tcp4 prefork=5 >imaps cmd="imapd -s" listen="imaps" proto=tcp4 prefork=10 >pop3 cmd="pop3d" listen="pop3" proto=tcp4 prefork=3 >pop3s cmd="pop3d -s" listen="pop3s" proto=tcp4 prefork=3 >sieve cmd="timsieved" listen="sieve" proto=tcp4 prefork=0 >lmtpunix<---->cmd="lmtpd" listen="/var/lib/imap/socket/lmtp" prefork=1 >.. >} >EVENTS { >checkpoint<-->cmd="ctl_cyrusdb -c" period=30 >delprune<---->cmd="cyr_expire -E 3" at=0400 >tlsprune<---->cmd="tls_prune" at=0400 >squatter cmd="squatter -i" at=0600 >} >-------- >Best regards, Anton >2017-Apr-11 > >---- >Cyrus Home Page: http://www.cyrusimap.org/ >List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ >To Unsubscribe: >https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
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