- dovecot - dovecot.org

[Dovecot] Improving interaction/performance with Mail.app?
by Alan Schmitt 01 Jul '06

01 Jul '06

Hello, I'm using dovecot as my IMAP server just for me, and I access it from three machines, all using Apple Mail.app. Unfortunately the performance is really bad, especially when deleting or copying a lot of messages. I know this is the fault of Mail.app, whose IMAP support leaves a lot to desire, but I was wondering if there could be some dovecot configuration tricks that make the interaction smoother. Thanks a lot, Alan -- Alan Schmitt <http://alan.petitepomme.net/> The hacker: someone who figured things out and made something cool happen. .O. ..O OOO

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[Dovecot] file_wait_lock with dovecot 0.99.14-1sarge
by Jorge Salamero Sanz 01 Jul '06

01 Jul '06

hi all, i've just installed dovecot from debian sarge and i get this error: Jun 28 16:31:50 server pop3(user): file_wait_lock() failed with custom flags file /mnt/nfs/users/user//mail/.customflags: No locks available (maildir in nfs) how seriously i should take it ? is it fixed in newer versions ? thanks !

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RE: [Dovecot] APPEND bug in dovecot-20060628
by Bill Boebel 01 Jul '06

01 Jul '06

Timo, > >I'm running maildir quotas with rc1 (dovecot-20060628) and get the > >following when trying to APPEND: > >"NO Unknown error" > >System logs show: > >Quota: Couldn't get new message's size > > > >.... and the file isn't there (unknown if Dovecot removed it, or if the > >lack of the file is the cause of the error). > > I am seeing this problem as well. Running this morning's CVS. It is hitting this condition on line 229 of src/lib-storage/index/maildir/maildir-mail.c, in function maildir_mail_get_physical_size(): /* size can be included in filename */ if (!maildir_filename_get_size(fname, MAILDIR_EXTRA_FILE_SIZE, &size)) { if (_mail->uid != 0) { if (maildir_file_do(mbox, _mail->uid, do_stat, &st) <= 0) { return (uoff_t)-1; } } else { /* saved mail which hasn't been committed yet */ if (do_stat(mbox, fname, &st) <= 0) { >> line 229 >>>>>> return (uoff_t)-1; } } size = st.st_size; }

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[Dovecot] 1.0rc1 location variable bug
by Chris Wakelin 01 Jul '06

01 Jul '06

I think I've found a bug in Dovecot 1.0 rc1 where if you have namespaces without the "location = " setting defined, it fails to use default_mail_env as it should. This seems to have been broken by :- 2006-06-16 18:13 Timo Sirainen <tss(a)iki.fi> * src/master/: auth-process.c, login-process.c, mail-process.c, main.c, master-settings.c: Settings parser nowadays returns "" instead of NULL when it reads an empty value from config file (due to some good reason I unfortunately didn't write to commit message and can't remember anymore). Fixed a lot of existing checks which checked for empty strings with NULL instead of "" checks. Looks like Timo missed (at least) one! I'm surprised nobody else has seen this. Do you all have "location" defined? Patch attached. Best Wishes, Chris -- --+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+- Christopher Wakelin, c.d.wakelin(a)reading.ac.uk IT Services Centre, The University of Reading, Tel: +44 (0)118 378 8439 Whiteknights, Reading, RG6 2AF, UK Fax: +44 (0)118 975 3094 --- dovecot-1.0.rc1.orig/src/master/mail-process.c Tue Jun 27 22:00:46 2006 +++ dovecot-1.0.rc1/src/master/mail-process.c Fri Jun 30 16:08:40 2006 @@ -161,7 +161,7 @@ for (i = 1; ns != NULL; i++, ns = ns->next) { t_push(); - location = ns->location != NULL ? ns->location : + location = *ns->location != '\0' ? ns->location : default_location; location = expand_mail_env(location, table); env_put(t_strdup_printf("NAMESPACE_%u=%s", i, location));

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[Dovecot] ssl-parameters.dat permissions
by Thomas Hummel 01 Jul '06

01 Jul '06

Hello, I'm using 1.0rc1 with login_dir = /var/dovecot-1.0/run/dovecot/login #login_user = dovecot but when launched, I've got dovecot: imap-login: Can't open SSL parameter file ssl-parameters.dat: Permission denied as a matter of fact, ssl-parameters.dat is created with the following permissions : -rw------- 1 root dovecot 230 Jun 30 14:35 /var/dovecot-1.0/run/dovecot/login/ssl-parameters.dat -- Thomas Hummel | Institut Pasteur <hummel(a)pasteur.fr> | Pôle informatique - systèmes et réseau

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[Dovecot] set quota on INBOX only
by Kristian Vlahovicek 01 Jul '06

01 Jul '06

Hello, how can I configure the IMAP quota plugin to force quotas on inbox only? I would like to limit the size of each of the user's inbox (in /var/mail/%u) to 50 meg and I do not want to force any quotas in their folders (mbox style). They should keep their inbox small :) thanks, Kristian

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[Dovecot] help for static user
by JC 01 Jul '06

01 Jul '06

Hi everybody, I have been long (for 2 days) trying, but I really need some help. I would like to use virtual static users. I configured my file as indicated in the documentation and then I created the following directory, with the needed rights (mail account) and leave them empty : /var/mail/virtual/<mon_domaine>.fr/toto/ I am not sure that it is the good method, but I understand it as follows : dovecot looks up in the directories and takes them as usernames and domain names. When I try to open the imap box from a client (evolution), I get a "Unknown error - the server closed the connection" message, that doesn't appear in the server's syslog. My dovecont.conf : << base_dir = /var/run/dovecot/ protocols = pop3s imaps imap_listen = *:143 pop3_listen = * ssl_cert_file = /etc/ssl/certs/dovecot.pem ssl_key_file = /etc/ssl/private/dovecot.pem disable_plaintext_auth = yes log_path = /var/log/dovecot.log log_timestamp = "%b %d %H:%M:%S " login_dir = /var/run/dovecot/login login_chroot = yes login = imap login_executable = /usr/lib/dovecot/imap-login login_user = dovecot login_process_size = 32 login_process_per_connection = yes login_processes_count = 3 login_max_processes_count = 128 login_max_logging_users = 256 login = pop3 login_executable = /usr/lib/dovecot/pop3-login max_mail_processes = 1024 verbose_proctitle = yes first_valid_uid = 8 last_valid_uid = 0 first_valid_gid = 1 last_valid_gid = 0 mail_extra_groups = mail client_workarounds = outlook-idle outlook-pop3-no-nuls mailbox_check_interval = 0 mailbox_idle_check_interval = 30 mail_full_filesystem_access = no mail_max_flag_length = 50 mail_save_crlf = no mail_read_mmaped = no maildir_stat_dirs = no maildir_copy_with_hardlinks = no maildir_check_content_changes = no mbox_lock_timeout = 300 mbox_dotlock_change_timeout = 30 umask = 0077 imap_executable = /usr/lib/dovecot/imap imap_process_size = 256 imap_use_modules = no imap_modules = /usr/lib/dovecot/imap pop3_executable = /usr/lib/dovecot/pop3 pop3_process_size = 256 pop3_use_modules = no pop3_modules = /usr/lib/dovecot/pop3 auth = cram-md5 auth_mechanisms = cram-md5 auth_realms = auth_userdb = passwd static uid=8 gid=8 home=/var/mail/virtual/%d/%u auth_passdb = passwd-file /etc/dovecot/cram-md5.pwd auth_user = dovecot auth_chroot = auth_executable = /usr/lib/dovecot/dovecot-auth auth_process_size = 256 auth_count = 1 auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ >> Thank you in advance for any help.

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[Dovecot] Secure connection from "localhost" in jails
by Dirk Engling 01 Jul '06

01 Jul '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear dovecot developers, first: thanks for this really cool imapd, on my server it serves some hundred domains, all in all some thousand users, some having hundred thousand mails in their Maildirs (their spam boxes mostly). Since I put this installation in an FreeBSD geli encrypted disc image I had no choice but to choose an imapd with clever indexes - dovecot was perfect. However, since I reconfigured the disc image to work as a FreeBSD jail, I had some trouble with my web mail solution. Squirrelmail does not work with imaps (or at least not smoothly, out of the box, or whatever) and I didn't like to hack php to support SSL. Plus: there is no point in using ssl for a local connection. In a FreeBSD jail a sockets source address is always rewritten to the jails address, so squirrelmail opening a connection to dovecot will not come from 127.0.0.1 but from the same (jails) address, dovecot listens to. Still, dovecot only considers 'localhost' addresses as secure and allows LOGIN or PLAIN auth. With the little patch below dovecot allows clients from the jail to authenticate via LOGIN, when they connect from the IP it accepts connections at. Something similar is lurking around in pop3 auth code, I am sure, you get the point. Regards erdgeist ======== 8< ======== 8< ======== 8< ======== 8< ======== 8< ======== 8< dovecot-1.0.rc1/src/imap-login 18:59:44 #> diff -u client.c* - --- client.c Thu Jun 29 18:59:39 2006 +++ client.c_new Thu Jun 29 18:59:19 2006 @@ -411,7 +411,7 @@ const struct ip_addr *ip) { struct imap_client *client; - - const char *addr; + const char *addr, *local_addr; if (max_logging_users > CLIENT_DESTROY_OLDEST_COUNT && hash_size(clients) >= max_logging_users) { @@ -429,8 +429,10 @@ client->common.tls = ssl; addr = net_ip2addr(ip); + local_addr = net_ip2addr(local_ip); client->common.secured = ssl || (IPADDR_IS_V4(ip) && strncmp(addr, "127.", 4) == 0) || + (IPADDR_IS_V4(ip) && strncmp(addr, local_addr, strlen(local_addr)) == 0) || (IPADDR_IS_V6(ip) && (strcmp(addr, "::1") == 0 || strncmp(addr, "::ffff:127.", 11) == 0)); -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (Darwin) iD8DBQFEpmKwImmQdUyYEgkRAmWJAKCISUFtjdwvIZvHucqREHXKmB3s3ACeO7ql phwkh3m/KTjQCKsRetLxORA= =VnV4 -----END PGP SIGNATURE-----

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[Dovecot] How to use filters with the LDA?
by martin f krafft 30 Jun '06

30 Jun '06

Hi, I am trying to deploy dovecot LDA and liking it so far. However, I need to pass the message through some filters before it's delivered to the user (e.g. spamc). I realise I can just set up a chain (postfix delivers to spamc, pipes to foo, pipes to bar, pipes to deliver), but there's no reliable error handling with that approach. Furthermore, I cannot seem to figure out whether sieve can pass messages through external filters, or how you'd do that. How do people approach this? What would be really sweet is an LDA plugin that can call arbitrary filters for each message it processes. Has something (obvious) like this been done? Thanks, -- martin; (greetings from the heart of the sun.) \____ echo mailto: !#^."<*>"|tr "<*> mailto:" net@madduck spamtraps: madduck.bogus(a)madduck.net "doesn't he know who i think i am?" -- phil collins

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[Dovecot] some basic questions
by David 29 Jun '06

29 Jun '06

I'm seeking a small IMAP server, and dovecat was recommended by those more savvy than me. (The sign on my monitor is "My programming language is solder..") so I'll be getting help to deploy this, but first... I've read through the wiki docs but still have questions, ones likely too obvious for most readers.... There will be <100 users, the platform will Debian, and I need IMAP/PO over SSL/TSL and locally-hosted Squirrelmail [unless someone has a better webmail client...]. Other boxes here run postfix, so that is a first choice. Clients will be Eudora, maybe TBird/Apple mail; no M$ Outlook. A) I need multi-domain support, with <joe(a)xyz.com> and <joy(a)qbc.net> being separate users. B) I have a problem with storage-abusers & really want the carrot-stick quota system my favorite ISP, Panix, has. You get N bytes {or messages, I can live with either/both} and when you get near, you get nagged until you solve it. When you exceed quota, you get no more incoming mail, just nagging. It's shunted aside until you make room. After D days, if it's still there, the shunted mail is returned. Regular reports as to who's naughty and nice would be great. C) Password changes. How can I have user-changable pw's, with crack/sanity checking of the new ones? Do I have to have accessible shell accounts on the box for each user? [argh] D) Spam: assume I can run spam-assassin and have it move suspected mail into a Junque mailbox; true? E) Non-guru creation/deletion of accounts: It appears from "Virtual Users" that this is possible via a text file, but I'm not sure... Comments?

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