R: Re: Mail User Agent?
>Messaggio originale >Da: Timo Sirainen>Data: 02/02/2016 23.27 >A: >Cc: >Ogg: Re: Mail User Agent? > >On 02 Feb 2016, at 22:00, azu...@pobox.sk wrote: >> >> Thank you for info. Well, i understand that clients are not forced to send the info but, in my logs, there's no single ID info. Do i need to enable logging of it or something? > >imap_id_log = * > Thank you very much!
Mail User Agent?
Hi,is there a way to log which MUA is being used from an user? # dovecot --version2.0.9 Thank you
TLS SNI Client Support
Hi,according to this page: http://wiki2.dovecot.org/SSL/SNIClientSupport (last change 2013) I would like to know if this limitation is still valid. # dovecot --version2.0.9 I am trying to configure Android default email client and I am not able at all to use TLS. With other clients I have no problem, so I think my server configuration is ok. Thank you
Performance
Hi, at moment I have this environment: CentOS nginx + phpfpm Dovecot, with Maildir format Postfix Roundcube MySQL backend about 1 mailusers dual core Intel(R) Pentium(R) D CPU 3.00GHz 8 GB RAM network storage device (Coraid), ext4 file system I have no performance issue now, but I need to move to a different server: FreeBSD 10.1-RELEASE nginx + phpfpm Dovecot Postfix Roundcube dual core Intel(R) Xeon(R) CPU5120 @ 1.86GHz 16 GB RAM local storage with zfs file system My question is: is better to use SQLite instead of MySQL? Should I prefer dbox format? Thank you in advance for your opinion!
Expunge messages older than
Hi, I am using Dovecot 2.2.13 on cPanel server. Is there a way to delete messages older than some date for a number of users (in every subfolder)? Thank you
R: Re: Duplicate messages
Hi Miloš, unfortunately, I have no X-UIDL header in my mailboxes. Thank you Messaggio originale Da: ghostlovescor...@gmail.com Data: 13/12/2014 10.25 A: absolutely_f...@libero.itabsolutely_f...@libero.it, dovecot@dovecot. org Ogg: Re: Duplicate messages -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 12/12/14 09:39, absolutely_f...@libero.it wrote: Hi, I just moved mail spool to a different network storage. Now, several users are complaining about duplicate message that are fetched by their clients (Outlook, Microsoft Outlook). What is the reason? This is my conf: # dovecot -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-71.el6.x86_64 x86_64 CentOS release 6.6 (Final) auth_mechanisms = plain login digest-md5 cram-md5 disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = 89 mail_gid = 89 mail_location = maildir:/coraid-s2l2/domains mail_uid = 89 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 imapflags notify mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-sql-crypt.conf.ext driver = sql } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags sieve_max_script_size = 1M } protocols = imap pop3 lmtp sieve ssl_cert = /etc/nginx/ssl/wildcard.server.net.crt ssl_key = /etc/nginx/ssl/wildcard.server.net.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = } protocol lda { mail_plugins = } Hello, Please check if those users have X-UIDL header in their emails. If do, remove header. That should solve the problem. Regards, Miloš -BEGIN PGP SIGNATURE- Version: GnuPG v2 iQEcBAEBCAAGBQJUjAYJAAoJEBkMFHhDgrs5LgAH/2uTkvRPLr0LEme+srIk72cw F5yYiH17K7vaPERTPrmKWZGtpezylWK/7YevjCE44+60L8JZqmIVQ99JRZcvMfSh KP5qu7A41EVXSsAiB75NfTcUEMAYYRSZHpu2rl9lFnGA+5zH9DCqSQrzyatF/DAl pdmLHVDH4Cj9rNAVdEl5u1e3rC0VCV3xXGgIBkIR9wdIhtrzW7Bdt2Ove08ct93t Uqj7mhtTxxBoUU2fDzkLZRdCSQpf8HiaKcgWQPNIcRGM0i+hbw42Sgwyl0XFiXfx f9YxPcT8OahF1+lCnVvQXhR2TiLTbBn+nFN7yWkrNkPlqs8lfIh1t9JOzldrO48= =YCbh -END PGP SIGNATURE-
Duplicate messages
Hi, I just moved mail spool to a different network storage. Now, several users are complaining about duplicate message that are fetched by their clients (Outlook, Microsoft Outlook). What is the reason? This is my conf: # dovecot -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-71.el6.x86_64 x86_64 CentOS release 6.6 (Final) auth_mechanisms = plain login digest-md5 cram-md5 disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = 89 mail_gid = 89 mail_location = maildir:/coraid-s2l2/domains mail_uid = 89 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 imapflags notify mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-sql-crypt.conf.ext driver = sql } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags sieve_max_script_size = 1M } protocols = imap pop3 lmtp sieve ssl_cert = /etc/nginx/ssl/wildcard.server.net.crt ssl_key = /etc/nginx/ssl/wildcard.server.net.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = } protocol lda { mail_plugins = }
R: Re: Duplicate messages
Hi Steffen, with rsync Thank you Messaggio originale Da: skdove...@smail.inf.fh-brs.de Data: 12/12/2014 9.44 A: absolutely_f...@libero.itabsolutely_f...@libero.it Cc: dovecot@dovecot.org Ogg: Re: Duplicate messages -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 12 Dec 2014, absolutely_f...@libero.it wrote: Hi, I just moved mail spool to a different network storage. Now, several users are complaining about duplicate message that are fetched by their clients (Outlook, Microsoft Outlook). What is the reason? How did you moved the message to the other network storage? mail_location = maildir:/coraid-s2l2/domains - -- Steffen Kaiser -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBVIqq2Xz1H7kL/d9rAQJqJgf/ZYLDY6IwdTcSUFXRdFlvyv37QW/R0fm0 Ki8izVuOHRNK2/YEubN2+TVouOD7X3COkYa8RCu8XSoWRiFKSl0PMHNsVqUIocA1 fEQOnY54nmdERsZ/+w8xLW5UZ2jKH12X3gqjMSFXUvMbvlhOCZFgvlckCx/DStC+ yjCM5yoOR711KXrhEzikr1lmxyR+kikh1N+MTLNkC3uQp0vFmWJR3HoXd3x+p+Dv y0PkOZmna+B8a1ElGDYA8SyGVvVl2VT+YzGt7IPhZPB5j/CrW2Kcwm2j9OW0IWnE rPuhY/5xqZoSUuGBGNXeA6bLy0gidnnZO7NpkMJgZcP6OnK612tMgw== =qlBd -END PGP SIGNATURE-
R: Re: R: Re: Duplicate messages
Hi, I mounted both network storage on this server. After that, I used: # nice -n 19 rsync -av --progress /mnt/old/domains/* /var/spool/pop/domains/ Messaggio originale Da: skdove...@smail.inf.fh-brs.de Data: 12/12/2014 12.01 A: absolutely_f...@libero.itabsolutely_f...@libero.it Cc: dovecot@dovecot.org Ogg: Re: R: Re: Duplicate messages -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 12 Dec 2014, absolutely_f...@libero.it wrote: with rsync would you be more specific: which command line, how did you shut users out etc.pp. Messaggio originale Da: skdove...@smail.inf.fh-brs.de Data: 12/12/2014 9.44 A: absolutely_f...@libero.itabsolutely_f...@libero.it Cc: dovecot@dovecot.org Ogg: Re: Duplicate messages -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 12 Dec 2014, absolutely_f...@libero.it wrote: Hi, I just moved mail spool to a different network storage. Now, several users are complaining about duplicate message that are fetched by their clients (Outlook, Microsoft Outlook). What is the reason? How did you moved the message to the other network storage? mail_location = maildir:/coraid-s2l2/domains - -- Steffen Kaiser -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBVIqq2Xz1H7kL/d9rAQJqJgf/ZYLDY6IwdTcSUFXRdFlvyv37QW/R0fm0 Ki8izVuOHRNK2/YEubN2+TVouOD7X3COkYa8RCu8XSoWRiFKSl0PMHNsVqUIocA1 fEQOnY54nmdERsZ/+w8xLW5UZ2jKH12X3gqjMSFXUvMbvlhOCZFgvlckCx/DStC+ yjCM5yoOR711KXrhEzikr1lmxyR+kikh1N+MTLNkC3uQp0vFmWJR3HoXd3x+p+Dv y0PkOZmna+B8a1ElGDYA8SyGVvVl2VT+YzGt7IPhZPB5j/CrW2Kcwm2j9OW0IWnE rPuhY/5xqZoSUuGBGNXeA6bLy0gidnnZO7NpkMJgZcP6OnK612tMgw== =qlBd -END PGP SIGNATURE- - -- Steffen Kaiser -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBVIrK9Xz1H7kL/d9rAQL6BQgAjKW48XJ21iPtZ+fTZgxEC00uA7cjvwZM EYV9wThONbvP6zCLsbjKPOCiWX4f9NwHobgkkTIBtGogF0obNvUY2tiIRWRzwGO0 31M/53iJ7ORNy9IZg3u5r1NPcklXhsjuy4cWyj13jN2FhY2xHJGqJWujtM5dCAe0 Qq3KDH0yvJQSMJIMF2Eb4M59xD6hvXMR7qSH3ShI8DxUa0JSg7hlSTKM4Ak54dPb GObJBiAqR9TUJ5lBFvoxmt2EyAnl4h0YURdwfuCyv+vYkP0GVat5p9hHRUPDc3cU k4MrgdcVDJI5+VMzKOhcovEZ3o2k5ChGXIdzHjvp79VB1VyZsvViyQ== =QeMJ -END PGP SIGNATURE-
R: Re: R: Re: Duplicate messages
Sorry, I haven't shut users. I simply copied data between two folders Messaggio originale Da: absolutely_f...@libero.it Data: 12/12/2014 13.14 A: dovecot@dovecot.org Ogg: R: Re: R: Re: Duplicate messages Hi, I mounted both network storage on this server. After that, I used: # nice -n 19 rsync -av --progress /mnt/old/domains/* /var/spool/pop/domains/ Messaggio originale Da: skdove...@smail.inf.fh-brs.de Data: 12/12/2014 12.01 A: absolutely_f...@libero.itabsolutely_f...@libero.it Cc: dovecot@dovecot.org Ogg: Re: R: Re: Duplicate messages -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 12 Dec 2014, absolutely_f...@libero.it wrote: with rsync would you be more specific: which command line, how did you shut users out etc.pp. Messaggio originale Da: skdove...@smail.inf.fh-brs.de Data: 12/12/2014 9.44 A: absolutely_f...@libero.itabsolutely_f...@libero.it Cc: dovecot@dovecot.org Ogg: Re: Duplicate messages -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 12 Dec 2014, absolutely_f...@libero.it wrote: Hi, I just moved mail spool to a different network storage. Now, several users are complaining about duplicate message that are fetched by their clients (Outlook, Microsoft Outlook). What is the reason? How did you moved the message to the other network storage? mail_location = maildir:/coraid-s2l2/domains - -- Steffen Kaiser -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBVIqq2Xz1H7kL/d9rAQJqJgf/ZYLDY6IwdTcSUFXRdFlvyv37QW/R0fm0 Ki8izVuOHRNK2/YEubN2+TVouOD7X3COkYa8RCu8XSoWRiFKSl0PMHNsVqUIocA1 fEQOnY54nmdERsZ/+w8xLW5UZ2jKH12X3gqjMSFXUvMbvlhOCZFgvlckCx/DStC+ yjCM5yoOR711KXrhEzikr1lmxyR+kikh1N+MTLNkC3uQp0vFmWJR3HoXd3x+p+Dv y0PkOZmna+B8a1ElGDYA8SyGVvVl2VT+YzGt7IPhZPB5j/CrW2Kcwm2j9OW0IWnE rPuhY/5xqZoSUuGBGNXeA6bLy0gidnnZO7NpkMJgZcP6OnK612tMgw== =qlBd -END PGP SIGNATURE- - -- Steffen Kaiser -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBVIrK9Xz1H7kL/d9rAQL6BQgAjKW48XJ21iPtZ+fTZgxEC00uA7cjvwZM EYV9wThONbvP6zCLsbjKPOCiWX4f9NwHobgkkTIBtGogF0obNvUY2tiIRWRzwGO0 31M/53iJ7ORNy9IZg3u5r1NPcklXhsjuy4cWyj13jN2FhY2xHJGqJWujtM5dCAe0 Qq3KDH0yvJQSMJIMF2Eb4M59xD6hvXMR7qSH3ShI8DxUa0JSg7hlSTKM4Ak54dPb GObJBiAqR9TUJ5lBFvoxmt2EyAnl4h0YURdwfuCyv+vYkP0GVat5p9hHRUPDc3cU k4MrgdcVDJI5+VMzKOhcovEZ3o2k5ChGXIdzHjvp79VB1VyZsvViyQ== =QeMJ -END PGP SIGNATURE-
R: Re: R: Re: best file system ?
Thank you very much for your detailed explaination! Messaggio originale Da: ama...@um.es Data: 03/12/2014 8.13 A: dovecot@dovecot.org Ogg: Re: R: Re: best file system ? El 02/12/14 a las 16:38, absolutely_f...@libero.it escribió: Hi Angel, can you please share your dovecot configuration? I have attached our doveconf -n output. We have two imap servers (with the same configuration) and two more acting as proxy (with director) in front of them. These last direct user request to their corresponding server. For storage we are using our SAN (a HP 3PAR 7400) connecting to it with fibre channel. We have two XFS filesystems. One for mail indexes and the other for user mailboxes and attachment files. In these servers we are running ubuntu 12.04 with kernel 3.4.0. What webmail are you using (if any)? We are using horde. -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 86337
Manual (file system level) message deletion
Hi,I use Dovecot + Postfix on CentOS server. I use maildir. What happen if I manually delete some messages (eg. the ones older than 6 months) for every use?I think that dovecot's indexes will be wrong... is this a potential performance issue?If so, how can I rebuild index file for every user? Thank you
R: Re: best file system ?
Hi Angel, can you please share your dovecot configuration? What webmail are you using (if any)? Thank you Messaggio originale Da: ama...@um.es Data: 02/12/2014 8.24 A: dovecot@dovecot.org Ogg: Re: best file system ? El 01/12/14 a las 18:45, Sami Ketola escribió: On 01 Dec 2014, at 18:24, absolutely_f...@libero.it wrote: Hi, I'm going to set up a new storage for our email users (about 10k). It's a network attached storage (Coraid). In your opinion, what is the best file system for mail server (pop3/imap/webmail) purpose? Depends on what OS you have chosen, or if OS is not the limiter I would go with ZFS. Have you any performance comparison with xfs? I'm running two imap servers. One with about 9k accounts and 3.5TB of storage, and another with 55k accounts and 2TB of storage with XFS, and I'm thinking about migrating them from XFS to ZFS but I'm concern about IO performance of ZFS. When we developed these two servers, I remember reading some zfs performance problems in comparison with xfs (I have lost the link) and that was the reason to finally use xfs, but now we are having problems with LVM snapshots and we also like some zfs features (like replication) so we are thinking about the change. -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 86337
SORT capability
Hi, why I don't see SORT capability on my dovecot server? # telnet localhost 143 Trying ::1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5] Dovecot ready. 1 capability * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5 1 OK Capability completed. a logout * BYE Logging out a OK Logout completed. Connection closed by foreign host. I am using # dovecot --version 2.0.9 default CentOS rpm package. Thank you
R: Re: SORT capability
Here's my conf: # dovecot -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-71.el6.x86_64 x86_64 CentOS release 6.6 (Final) auth_mechanisms = plain login digest-md5 cram-md5 disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = 89 mail_gid = 89 mail_location = maildir:/coraid-s2l2/domains mail_uid = 89 maildir_very_dirty_syncs = 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 imapflags notify mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-sql-crypt.conf.ext driver = sql } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags sieve_max_script_size = 1M } protocols = imap pop3 lmtp sieve service imap-login { service_count = 0 } service pop3-login { service_count = 0 } ssl_cert = /etc/nginx/ssl/wildcard.crt ssl_key = /etc/nginx/ssl/wildcard.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = } protocol lda { mail_plugins = } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } Messaggio originale Da: h.rei...@thelounge.net Data: 01/12/2014 12.37 A: dovecot@dovecot.org Ogg: Re: SORT capability Am 01.12.2014 um 12:32 schrieb absolutely_f...@libero.it: # dovecot -n |grep -i sort (nothing) i meant post the complete output you can't grep for something not existing but you or some config-include may set something wrong Maybe to full list is only available after authentication? likely # telnet localhost 143 Trying ::1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5] Dovecot ready. a login XXX a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS] Logged in Messaggio originale Da: h.rei...@thelounge.net Data: 01/12/2014 12.21 A: dovecot@dovecot.org Ogg: Re: SORT capability Am 01.12.2014 um 12:19 schrieb absolutely_f...@libero.it: why I don't see SORT capability on my dovecot server? # telnet localhost 143 Trying ::1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5] Dovecot ready. 1 capability * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5 1 OK Capability completed. a logout * BYE Logging out a OK Logout completed. Connection closed by foreign host DUNNO mabye output of dovecot -n knows
R: Re: pop3/imap hanging processes
Thank you very much! Messaggio originale Da: edua...@freedominterface.org Data: 13/11/2014 2.18 A: dovecot@dovecot.org Ogg: Re: pop3/imap hanging processes Take a look at ' shutdown_clients' parameter. http://wiki2.dovecot.org/RunningDovecot On 11/12/2014 07:37 PM, absolutely_f...@libero.it wrote: Hi, I am using Dovecot 2.0.9 on CentOS server.I noticed that when I type: service dovecot stop, there are several imap / pop3 dovecot processes that remain active.Which parameter controls this?How can I have dovecot closing these processes more quickly?Thank you
R: Re: pop3/imap hanging processes
Sorry, I checked and it's already ok: # dovecot -a |grep shutdown shutdown_clients = yes Messaggio originale Da: edua...@freedominterface.org Data: 13/11/2014 2.18 A: dovecot@dovecot.org Ogg: Re: pop3/imap hanging processes Take a look at ' shutdown_clients' parameter. http://wiki2.dovecot.org/RunningDovecot On 11/12/2014 07:37 PM, absolutely_f...@libero.it wrote: Hi, I am using Dovecot 2.0.9 on CentOS server.I noticed that when I type: service dovecot stop, there are several imap / pop3 dovecot processes that remain active.Which parameter controls this?How can I have dovecot closing these processes more quickly?Thank you
pop3/imap hanging processes
Hi, I am using Dovecot 2.0.9 on CentOS server.I noticed that when I type: service dovecot stop, there are several imap / pop3 dovecot processes that remain active.Which parameter controls this?How can I have dovecot closing these processes more quickly?Thank you
Performance issue
Hi, Since few days I noticed very high load on my mailserver (Centos 6.6 64bit, 8 GB RAM, 2 x CPU 3.00GHz I am using Dovecot + Postfix + Roundcube + Nginx. I have about 1 users. Spool is on network attached storage (Coraid). File system is ext4 (mounted with noatime). Problem appears almost every morning (while load is normal during afternoon). I suspect that this can be related to some user that have so many messages in his mailbox. How can I troubleshoot this? Here some messages that I got in maillog: Warning: Maildir: Scanning /var/spool/pop/domains/.it/Y/Maildir/new took 71 seconds (1 readdir()s, 1 rename()s to cur/) Warning: Maildir /var/spool/pop/domains///Maildir/.Trash: Synchronization took 74 seconds (5 new msgs, 0 flag change attempts, 0 expunge attempts) dovecot: imap(x...@.it): Warning: Inotify instance limit for user 89 (UID postfix) exceeded, disabling. Increase /proc/sys/fs/inotify/max_user_instances tail: inotify cannot be used, reverting to polling: Too many open files My relevant dovecot conf: mail_location = maildir:/coraid-s2l2/domains namespace { type = private separator = . prefix = INBOX. inbox = yes } mail_uid = 89 mail_gid = 89 mail_fsync = never first_valid_uid = 89 first_valid_gid = 89 maildir_very_dirty_syncs = yes mbox_write_locks = fcntl thank you very much!