- dovecot - dovecot.org

Duplicate messages
by absolutely_free＠libero.it 13 Dec '14

13 Dec '14

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 = }

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Convert sdbox to mdbox
by anon_user＠openmailbox.org 13 Dec '14

13 Dec '14

Hello, I have few hundreds mailboxes in my installation using the lastest version of dovecot. I have performances issues due to the storage don't support the high flow of I/O. I'm wondering if they are any chance to convert without downtime my sdboxes mailboxes to mdbox. Thanks in advance.

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Is the mdbox format backwards compatible?
by Orion Poplawski 12 Dec '14

12 Dec '14

I'm contemplating using dsync with dovecot-2.2.10 (el7) and then transferring the resulting mdbox files to a dovecot-2.0.9 (el6) server. Is the mdbox format backwards compatible between the two versions? Thanks, Orion -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion(a)nwra.com Boulder, CO 80301 http://www.nwra.com

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stacking istreams and ostreams
by Philipp Brüll 12 Dec '14

12 Dec '14

Hello, I'm developing an encryption plugin for dovecot and ran into a problem with the stacking of i/o-streams. The encryption i/o-streams are working fine on any kind of mail the test suite is passing through them. But as soon as the zlib plugin is enabled the logs show an cache error: failed: Cached message size larger than expected (214 > 206, box=INBOX, UID=1) I've already double-checked the return values of ostream's sendv and istream's read function. They seem correct (and equal). If the order of the streams are changed (by changing the number in the lib-filename libxx_scrambler.so); meaning that the encryption is done before the compression (which isn't efficient) both streams are working correct without any errors. Is there some way the zlib plugin changes the cached message size? Is there some behaviour of the zlib plugin that I'm missing? Any help would be very welcome. Best regards, Philipp -- simia.tech GbR http://simiatech.com

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[Dovecot] Doveadm sometimes failed "to iterate through some users" after upgrade to 2.2
by David Davidov 12 Dec '14

12 Dec '14

> Yes, after an upgrade works fine. Hello, Unfortunately this issue hits again. I installed the latest stable version 2.2.15 and got the following error # doveadm expunge -u "^o^(a)dave.s484.qa-team.net" mailbox 'INBOX.Junk Mail' SAVEDBEFORE 7d doveadm(^o^(a)dave.s484.qa-team.net): Error: userdb lookup(^o^(a)dave.s484.qa-team.net): Disconnected unexpectedly doveadm(^o^(a)dave.s484.qa-team.net): Fatal: User lookup failed: Internal error occurred. Refer to server log for more information. # echo $? 75 Our production servers run 2.2.13, where the situation is the same. regards, David Davidov System administrator @ icdsoft.com -- David Davidov | System Administrator | ICDSoft Ltd.

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Dsync issues between Cyrus and Dovecot
by Ovidiu Moldovan 12 Dec '14

12 Dec '14

Hello, I have some issues related with dsync when trying to perform two way synchronization between Cyrus and Dovecot. 1st time synchronization always works and email, folders, flags can be synced between these but once for example in dovecot side the user creates a folder, dsync fails with the following errors: Debug: brain M: Other brain should change mailbox INBOX/dove GUID c77e7711be9a6c77fc845ea745963ddb -> df0d180f71e38a544f9e00008aa015be Debug: brain M: out state=master_send_mailbox changed=1 Debug: brain S: in state=recv_mailbox_tree_deletes Error: Can't create mailbox INBOX/dove: Mailbox already exists INBOX/dove folder was created in Dovecot side and does not exist in Cyrus side. I have tried full sync or backup but without any luck. If I delete the folder from Dovecot side the sync works fine again. I can post more info on the configuration if needed. Thank you, Ova

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R: Re: R: Re: Duplicate messages
by absolutely_free＠libero.it 12 Dec '14

12 Dec '14

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: skdovecot(a)smail.inf.fh-brs.de >Data: 12/12/2014 12.01 >A: "absolutely_free(a)libero.it"<absolutely_free(a)libero.it> >Cc: <dovecot(a)dovecot.org> >Ogg: Re: R: Re: Duplicate messages > >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA1 > >On Fri, 12 Dec 2014, absolutely_free(a)libero.it wrote: > >> with rsync > >would you be more specific: > >which command line, how did you shut users out etc.pp. > >> >>> ----Messaggio originale---- >>> Da: skdovecot(a)smail.inf.fh-brs.de >>> Data: 12/12/2014 9.44 >>> A: "absolutely_free(a)libero.it"<absolutely_free(a)libero.it> >>> Cc: <dovecot(a)dovecot.org> >>> Ogg: Re: Duplicate messages >>> >>> -----BEGIN PGP SIGNED MESSAGE----- >>> Hash: SHA1 >>> >>> On Fri, 12 Dec 2014, absolutely_free(a)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----- >

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PATCH - add username_format to the PAM auth module
by Bradley Kite 12 Dec '14

12 Dec '14

Hi there, Other auth modules (eg passwd-file) allow a username_format to be specified, but not the PAM module. The use-case, is where I want a static userdb configuration which takes the domain into account but still want to use PAM for authentication, eg: userdb { driver = static args = uid=8 gid=12 home=/mnt/storage/mail/vhosts/%d/%n } passdb { driver = pam args = username_format=%n allow_pam_transform=no dovecot } The global "auth_username_format" setting ends up changing the username, so looses the ability to have different mailboxes based on domain. There is also a new setting, allow_pam_transform which stops the username being changed after a successful authentication. Normally, if PAM changes the username, then dovecot must update its record of the username for further processing - but in this use case we must disable this function. -- Brad.

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R: Re: Duplicate messages
by absolutely_free＠libero.it 12 Dec '14

12 Dec '14

Hi Steffen, with rsync Thank you >----Messaggio originale---- >Da: skdovecot(a)smail.inf.fh-brs.de >Data: 12/12/2014 9.44 >A: "absolutely_free(a)libero.it"<absolutely_free(a)libero.it> >Cc: <dovecot(a)dovecot.org> >Ogg: Re: Duplicate messages > >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA1 > >On Fri, 12 Dec 2014, absolutely_free(a)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----- >

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Error: mremap_anon(###) failed: Cannot allocate memory
by Andy Dills 12 Dec '14

12 Dec '14

We're running dovecot 2.2.15 with pigeonhole 0.4.6, in a clustered environment, nfs with proxy and backend on all servers. I've been seeing some odd errors from lmtp: Error: mremap_anon(127930368) failed: Cannot allocate memory It seems to affect specific users, but it doesn't seem to manifest in any particular way; no user complaints. Just the occasional log message. I would guess this is a bug? I'm open to suggestions and I'd be happy to post config if somebody has an idea. Thanks, Andy --- Andy Dills Xecunet, Inc. www.xecu.net 301-682-9972 ---

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