- dovecot - dovecot.org

[Dovecot] (Dis)advantage of using lmtp?
by Christian Schmidt 28 Nov '10

28 Nov '10

Hi all, are there any (dis)advantages in "connecting" dovecot and an MTA (in our case: exim) using LMTP over using other methods (e.g. the exim transports definitions that can be found in the wiki)? Thank you very much! Gruss/Regards, Christian Schmidt

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[Dovecot] Mailbox Delete
by Alex Baule 27 Nov '10

27 Nov '10

Hi Timo.... I Modify the plugin autocreate, that create and subscribe a mailbox to user. My modification consist in do the inverse, if my user don't have permission to create and subscribe a folder, the plugin remove and unsubscribe. My function is called in the same place that create and subscribe is called, just seeing if my flag is "create or delete". My function i copy from doveadm + autocreate create mailbox. The delete is made, and works, but i got some errors before the delete. I thing that is missing something in this function, like delete something else.... static void emexis_antispam_mailbox_delete(struct mail_namespace *namespaces, const char *name) { struct mail_namespace *ns; struct mailbox *box; ns = mail_namespace_find(namespaces, &name); if (ns != NULL){ box = mailbox_alloc(ns->list, name, 0); if (mailbox_delete(box) < 0) { struct mail_storage *storage = mailbox_get_storage(box); i_error("Can't delete mailbox %s: %s", name,mail_storage_get_last_error(storage, NULL)); } if (mailbox_mark_index_deleted(box, TRUE) < 0){ struct mail_storage *storage = mailbox_get_storage(box); i_error("Can't delete INDEX %s: %s", name,mail_storage_get_last_error(storage, NULL)); } mailbox_free(&box); } } I got this errors. Nov 26 17:39:29 brc dovecot: imap(alex(a)exemplo.com.br): Panic: file index-status.c: line 144 (index_storage_get_status): assertion failed: (box->opened) Nov 26 17:39:29 brc dovecot: imap(alex(a)exemplo.com.br): Error: Raw backtrace: /opt/addons/lib/dovecot/libdovecot.so.0 [0xb769275e] -> /opt/addons/lib/dovecot/libdovecot.so.0 [0xb76927bd] -> /opt/addons/lib/dovecot/libdovecot.so.0 [0xb7691db4] -> /opt/addons/lib/dovecot/libdovecot-storage.so.0(index_storage_get_status+0x38d) [0xb770aced] -> /opt/addons/lib/dovecot/lib20_emexis_uis_plugin.so [0xb75009a1] -> /opt/addons/lib/dovecot/libdovecot-storage.so.0(mailbox_delete+0x4e) [0xb76ed36e] -> /opt/addons/lib/dovecot/lib20_emexis_uis_plugin.so [0xb74fff10] -> /opt/addons/lib/dovecot/lib20_emexis_uis_plugin.so [0xb7500280] -> /opt/addons/lib/dovecot/lib20_emexis_uis_plugin.so [0xb7500fa9] -> /opt/addons/lib/dovecot/libdovecot-storage.so.0(hook_mail_namespaces_created+0x31) [0xb76ee011] -> /opt/addons/lib/dovecot/libdovecot-storage.so.0(mail_namespaces_init+0x7c4) [0xb76e71d4] -> /opt/addons/lib/dovecot/libdovecot-storage.so.0(mail_storage_service_next+0x21c) [0xb76f4b9c] -> /opt/addons/lib/dovecot/libdovecot-stor Nov 26 17:39:29 brc dovecot: master: Error: service(imap): child 2830 killed with signal 6 (core dumps disabled) TKS Timo !!!

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[Dovecot] sieve fileinto public shared mbox?
by RParr 26 Nov '10

26 Nov '10

Could someone verify if 1) sieve can fileinto shared public mbox? 2) if it can, what I might be doing wrong? I am getting errors in the log when I try to have sieve fileinto a shared public mbox. 11/04/10 06:08:12 pm n3 dovecot deliver(tarts): sieve: msgid=<201011050108.oA5187sm003711(a)JaySmith.com>: failed to store into mailbox 'public/SPAM/SPAMMM': Mailbox doesn't exist: public/SPAM/SPAMMM 11/04/10 06:08:12 pm n3 dovecot deliver(tarts): sieve: execution of script /home/tarts/.dovecot.sieve failed, but implicit keep was successful ---------------------------------------------------- require "include"; require "fileinto"; require "regex"; require "relational"; require "comparator-i;ascii-numeric"; if header :value "ge" :comparator "i;ascii-numeric" "X-Spam-Score" "12" { fileinto "public/SPAM/SPAMMM"; stop; } elsif header :value "ge" :comparator "i;ascii-numeric" "X-Spam-Score" "8" { fileinto "SPAM/MySPAMM"; stop; } elsif header :value "ge" :comparator "i;ascii-numeric" "X-Spam-Score" "4" { fileinto "SPAM/MySPAM"; stop; } ------------------------------------------------------- sieve fileinto user tarts own directories SPAM/MySPAM works fine. I have defined 2 namespace namespace private { separator = / prefix = inbox = yes } namespace public { separator = / prefix = public/ location = mbox:/var/mail/public subscriptions = no } and I have mail_access_groups = tarts The /var/mail/public/SPAM/... folders do exist and user tarts can move/copy mail into them just fine; they have permissions as follows: public/SPAM: total 28 drwxrws--- 3 mail tarts 4096 2010-11-04 18:11 ./ drwsrws--- 8 mail tarts 4096 2010-10-27 18:18 ../ drwxrws--- 5 testuser tarts 4096 2010-11-04 14:49 .imap/ -rw-rw---- 1 testuser tarts 2019 2010-11-04 14:58 SPAM -rw-rw---- 1 tarts tarts 2003 2010-11-04 14:58 SPAMM -rw-rw---- 1 mail tarts 7175 2010-11-04 18:11 SPAMMM public/SPAM/.imap: total 20 drwxrws--- 5 testuser tarts 4096 2010-11-04 14:49 ./ drwxrws--- 3 mail tarts 4096 2010-11-04 18:11 ../ drwxrws--- 2 testuser tarts 4096 2010-11-04 14:49 SPAM/ drwxrws--- 2 tarts tarts 4096 2010-11-04 14:49 SPAMM/ drwxrws--- 2 tarts tarts 4096 2010-11-04 14:49 SPAMMM/ public/SPAM/.imap/SPAM: total 28 drwxrws--- 2 testuser tarts 4096 2010-11-04 14:49 ./ drwxrws--- 5 testuser tarts 4096 2010-11-04 14:49 ../ -rw-rw---- 1 tarts tarts 16384 2010-11-04 14:50 dovecot.index.cache -rw-rw---- 1 testuser tarts 836 2010-11-04 14:58 dovecot.index.log public/SPAM/.imap/SPAMM: total 28 drwxrws--- 2 tarts tarts 4096 2010-11-04 14:49 ./ drwxrws--- 5 testuser tarts 4096 2010-11-04 14:49 ../ -rw-rw---- 1 tarts tarts 16384 2010-11-04 14:49 dovecot.index.cache -rw-rw---- 1 tarts tarts 748 2010-11-04 14:58 dovecot.index.log public/SPAM/.imap/SPAMMM: total 32 drwxrws--- 2 tarts tarts 4096 2010-11-04 14:49 ./ drwxrws--- 5 testuser tarts 4096 2010-11-04 14:49 ../ -rw-rw---- 1 tarts tarts 17408 2010-11-04 18:03 dovecot.index.cache -rw-rw---- 1 tarts tarts 1660 2010-11-04 18:11 dovecot.index.log

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[Dovecot] Use a different usename than the recipient address (that require a lookup)?
by Zhou, Yan 26 Nov '10

26 Nov '10

Hi there, I am integrating Postfix and DoveCot, both use LDAP to look up user/email address info. My question is this: can I create a user "jsmith" to get all emails with the recipient address: dovecotdemo@domain? Because of using LDAP, I need to do a lookup to know that the user "jsmith" is getting emails for "dovecotdemo@domain", NOT "dovecotdemo" (there will be no such user). In postfix's master.cf, I can use LDA to deliver to DoveCot, which needs to know the user name where the message should be delivered to. But I would not know that at the time because I need to do a lookup in LDAP. Does the DoveCot delivery agent have any way to allow me return a different user name after LDAP lookup? I would not want to modify a couple of files to accomplish that, because I would have to do that for every email address created. Thanks, Yan NOTICE: This email message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. This message has been content scanned by the Axway MailGate. MailGate uses policy enforcement to scan for known viruses, spam, undesirable content and malicious code. For more information on Axway products please visit www.axway.com.

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[Dovecot] (summarized) wishlist :-)
by Clemens Schrimpe 26 Nov '10

26 Nov '10

Hello All (and Timo in particular :-) -- While reading through some of the conversations on this list over the past two weeks or so, I always thought "how would <this> particular problem affect you and how would you address it in your environment?". This results in a few suggestions, or "thing to wish for", which I thought others may find useful, hence I'm posting this here. 1) the whole "post login scripting" is a mighty tool, yet it presently lacks a few more words in the documentation, i.e., the syntax of the corresponding config files isn't /entirely/ clear to me. Yes, I can replay the examples given, but I'm not fully sure, what happens when, etc. I'm perfectly willing, though, to contribute to that, by documenting findings in the Wiki2 (I'm just using 2.0.x, sorry). I'd appreciate a few more examples, so if anyone has a funny, working configuration, making good use of "post login scripting", I'd appreciate it, if you'd "show" them! :-) Anyway: A bit more "control" over PLS would be nice. For example, I'd like to have a script invoked every time a new "session" starts (new IMAP/POP3 connection from a unique ID), as many clients open multiple connections at once and usually I wouldn't want to see the second, third, nth connection - just the first. "Nice" would also a "post logout scripting" feature - again: Both for "all" connections, as well as just for the "last" one. Yes, this certainly requires a bit more discussion, I know - but I hope to trigger just that with this message! :-) 2) The "local x.x.x.x {" feature is very nice, yet it could use some "polishing", I guess. Inclusion of ports and wildcards for either addresses or ports, for instance. I'm imagining a syntax like this: local 1.2.3.4 { ... } like now to remain backward compatible local 1.2.3.4:* { ... } same result, just different new syntax -> don't care about port local 1.2.3.4:4711 { ... } add port restriction local *:4711 { ... } don't care for address, but match on port and -of course- (yes, I am really USING IPv6), the use of "[2001:xxxx:yyyy::zzzz]" instead of "1.2.3.4" in the examples show above. If one would like to become really funky, the optional "/xx" addition to specify a prefix-length would leave no more wishes open. (Well ... maybe the use of "names" derived from DNS instead of literal addresses, of course :-) [if this feature becomes clearer to me, I'd -again- be happy to help document it within the Wiki2] 3) The "iterate_query" in the SQL interface (I assume, there is something similar in the LDAP realm?) could be supplied with a few (optional, of course) "%x" variables, i.e., "%s" could deliver the "service" again, like with the other queries. This could tell the database engine, what the "show me all users" query is being used for ("quota", "expunge", ... basically all functions of doveadm, where you can supply a "-A" parameter). A "%{env:HOST}" could be used to tell the DB interface, which node of a multi-node installation is "asking". I.e., if you have your users distributed over multiple nodes, each one might want to perform "cleanups" only for their own users, saving a lot of bandwidth for unnecessary NFS traffic, etc. That's it - for now. Otherwise I'm pretty happy with dovecot, let me make that very clear here! :-) :-) :-) Clemens

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[Dovecot] ioloop.c panic
by Brad Davidson 26 Nov '10

26 Nov '10

Timo, Just this morning I upgraded from 2.0.6 to 2.0.7 (hg changeset 66a523135836). A few hours later we had some power problems that caused the networking to drop out at one site. The directors on the surviving site all had a few imap-login processes crash with the following error: Nov 23 09:15:30 cc-director1 dovecot: imap-login: Panic: file ioloop.c: line 35 (io_add): assertion failed: (fd >= 0) Nov 23 09:15:31 cc-director1 dovecot: imap-login: Panic: file ioloop.c: line 35 (io_add): assertion failed: (fd >= 0) Nov 23 09:55:48 cc-director1 dovecot: imap-login: Panic: file ioloop.c: line 35 (io_add): assertion failed: (fd >= 0) Nov 23 09:55:51 cc-director2 dovecot: imap-login: Panic: file ioloop.c: line 35 (io_add): assertion failed: (fd >= 0) I don't have core dumps enabled, so I can't provide any more information than that. I could enable cores, but I honestly would be hard-pressed to replicate the network cut-out anyway so I'm not optimistic that any cores for this message would ever be forthcoming. Thanks, -Brad --- Brandon 'Brad' Davidson Virtualization Systems Administrator University of Oregon Information Services (541) 346-8098 brandond(a)uoregon.edu

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[Dovecot] ldap passdb + mdbox
by Daniel L. Miller 26 Nov '10

26 Nov '10

I previously had a static userdb and an ldap passdb. Everything's been working fine, both 1.2 and 2.0 - but now I need to support the nightly mdbox purge operation. I added the iterate params to my ldap configuration, but (I'm guessing) that with a defined static userdb it won't work. How should I setup my ldap userdb? Do I use prefetch? Current config: passdb { driver = ldap args = /usr/local/etc/dovecot/dovecot-ldap.conf } userdb { driver = static args = uid=vmail gid=mail home=/var/mail/%d/%n mail=mdbox:/var/mail/%d/%n/mdbox allow_all_users=yes } dovecot-ldap.conf: ## dn credentials shouldn't be needed since using auth-bind - but here anyway dn = xxx,dc=amfeslan,dc=local dnpass = xxx ## auth_bind = yes auth_bind_userdn = uid=%n,ou=users,dc=amfeslan,dc=local ldap_version = 3 base = ou=Users, dc=amfeslan, dc=local user_attrs = dbox:%d/%n/Maildir=mail,%d/%n=home user_filter = (mail=%u) pass_attrs = mail=user,userPassword=password pass_filter = (&(objectClass=inetOrgPerson)(mail=%u)) iterate_attrs = mail=user iterate_filter = (&(objectClass=inetOrgPerson)(mail=*)) -- Daniel

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[Dovecot] auth on tcp socket?
by Hajo Locke 26 Nov '10

26 Nov '10

Hello, is it possible to provide service auth on tcp-socket instead of unix-socket? I changed my conf and dovecot 2.0.5 is restarting but on telnet test it throws: dovecot: auth: Fatal: getsockname(12) failed: Socket operation on non-socket Want to separate smtp and imap to different servers but keep using dovecot auth for postfix-sasl. Whats to do? hmm, is postfix able to use non-unix socket for dovecot-sasl? Thanks, Hajo

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[Dovecot] proxy (director) and destination ports
by Oliver Eales 26 Nov '10

26 Nov '10

Hello, i am delivering Mail from postfix via LMTP to dovecot. I am using the director also for LMTP. As long as i connect to the dovecot LMTP TCP socket from postfix everything is working. postfix main.cf: virtual_transport= lmtp:localhost:30025 But when i try to switch to the local socket postfix main.cf: virtual_transport = lmtp:unix:private/dovecot-lmtp The dovecot proxy tries to connect to the backend server port 0 which is obviously not working. The proxy always seems to connect to the same port on the backend as it was accessed itself. Nov 24 14:55:09 auth: Debug: master out: PASS 1 user=1000000000030 proxy Nov 24 14:55:09 lmtp(7330): Debug: auth input: user=1000000000030 proxy host=10.1.1.151 proxy_refresh=450 Nov 24 14:55:09 lmtp(7330): Error: lmtp client: connect(10.1.1.151, 0) failed: Connection refused Nov 24 14:55:11 director: Error: director(15.189.34.59:13459/out): connect() failed: Connection refused Is it possible to set the destination port (30025) of the backend server to the proxy ? Regards, Oliver

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[Dovecot] Director
by Diego Damian Garcia 26 Nov '10

26 Nov '10

Hi. I am try to setup director in dovecot 2.0.7-1_123 but I don´t unserstand how this work. Have any tutorial with instructions to setup the director to autenticate users and send to the real mail servers? Sincerely Thanks. Diego.

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