- dovecot - dovecot.org

[Dovecot] Dovecot sieve support
by Daniel L. Miller 17 Jul '10

17 Jul '10

Is sieve going to be merged into the main server source, or at this time is it going to remain an external patch? -- Daniel

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[Dovecot] dovecot 2.0.beta6 dies when I try to delete a folder with thunderbird
by Sven Kirmess 16 Jul '10

16 Jul '10

When I try to delete a folder with Thunderbird 3.1 I get the following log entry and the folder is not deleted. Filesystem is ZFS. Jun 27 15:32:36 azati dovecot: [ID 583609 mail.error] master: Error: service(imap): child 18215 killed with signal 11 (core not dumped - set drop_priv_before_exec=yes) Jun 27 15:32:36 azati dovecot: [ID 583609 mail.error] master: Error: service(imap): child 18213 killed with signal 11 (core not dumped - set drop_priv_before_exec=yes) # 2.0.beta6: /etc/opt/dovecot/dovecot/dovecot.conf # OS: SunOS 5.10 i86pc zfs first_valid_uid = 100 mail_location = mdbox:/l/dovecot/%u/dbox namespace { inbox = yes location = prefix = separator = / type = private } passdb { driver = pam } protocols = imap service imap-login { inet_listener imap { port = 0 } } service imap { vsz_limit = 1073741824 } ssl = required ssl_cert = </etc/opt/dovecot/dovecot/certs/dovecot.pem ssl_key = </etc/opt/dovecot/dovecot/private/dovecot.pem userdb { driver = passwd } verbose_proctitle = yes

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[Dovecot] Dovecot 2.0.rc2 fd passing regression
by Tomi Vainio 16 Jul '10

16 Jul '10

Hi, I've tried to compile 2.0.rc2 and configure fails this which used to work or at least last time when I tried beta4. > configure:19606: checking whether fd passing works > configure:19680: cc -o conftest -xO4 -I./src/lib ./src/lib/fdpass.c -I/usr/sfw/include/mysql -I/usr/sfw/include -R/usr/sfw/lib:/usr/lib/sasl -L/usr/sfw/lib -L/usr/lib/sasl conftest.c -lrt -lnsl -lsocket -lrt >&5 > ./src/lib/fdpass.c: > "./src/lib/fdpass.c", line 100: incomplete struct/union/enum const_iovec: iov > "./src/lib/fdpass.c", line 109: improper member use: iov_base > "./src/lib/fdpass.c", line 109: warning: assignment type mismatch: > pointer to void "=" pointer to const void > "./src/lib/fdpass.c", line 110: improper member use: iov_len > cc: acomp failed for ./src/lib/fdpass.c > conftest.c: Tomppa

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[Dovecot] Temporary files
by Timo Sirainen 16 Jul '10

16 Jul '10

In v1.0 .. v1.1 deliver was writing incoming >128k mail to /tmp file (to avoid reading it all into memory). In v1.2 I moved it to user's home directory. This slowed deliveries for NFS users. Also people with filesystem quota had trouble since now user required twice as much available quota to save a message. The FS quota problem was "solved" by having quota-fs plugin change the default temp file path to /tmp. So why was the move made in the first place? Because a) some people had small (maybe ramfs) /tmp and Dovecot was eating it all up and b) to avoid any potential security issues with storing per-user files to a shared directory. I'm now thinking about a new setting (mail_temp_dir?) for v2.0 where these temp files would be stored (lda, lmtp, some others in future). Maybe the b) problem isn't that huge, so maybe there doesn't need to be a way to store them to user's home. So that leaves a) problem. Maybe the setting could default to /var/tmp instead of /tmp? That probably has more disk space available usually. (I hope /var/tmp is available everywhere?) Any thoughts?

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[Dovecot] Ok, I've given up
by Chuck McManis 15 Jul '10

15 Jul '10

Sigh, In the interest of moving forward on this project I've given up trying to get Dovecot to support mailboxes, rather I've tweaked around in qmail and had it deliver into a mail directory on a disk, that isn't NFS mounted. That got me past the various locking complaints and "operation not supported" on home directories that were mounted from the NetApp filer. Going as vanilla as possible I've managed to both send an email that qmail delivered and fetch the email with my 3 test clients (Eudora, Thunderbird, and Evolution) (I know they are, in a sense, all variations on a theme but MUA monoculture seems to be inevitable these days). So a few questions for the other esteemed system operators here if you know the answer I'd love to hear it. Question 1) Are my user's passwords safe from prying eyes? First, part of this effort was to move off of an APOP infrastructure into something more secure against password eavesdropping. To that end I've configured Dovecot with simply: protocols = pop3 service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } Note that there is NO port = 110 listener and yet Dovecot seems to listen there anyway. My question, can I be sure that it is not accepting non-SSL based connections? Attempts to use plaintext on 110 were rebuffed so that seems to be the case. My intent is that if my user is using this in an airport they won't give away their email password to a bad guy who is sniffing all the packets. Question 2) Is there any way to run dovecot from tcpserver ? One of the things I like is the program tcpserver. I like it because I can simply "not allow" large chunks of the internet to connect at all to certain ports. (I use this for SSH in particular since all the kids love throwing dictionary attacks around). I'd like to give my POP3 ports equivalent protection. I also like the logging facilities of the supervise / multilog service. To use this I'd need Dovecot to accept the connection handed to it, and not do the whole setsid daemon thing since tcpserver will start another one if needed. I can send the logging out to stderr (thanks!) and get the logging stuff but still wondering about the 'hand you a connection.' --Chuck

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[Dovecot] How to Upgrade to dovecot 2.0rc2 from dovecot 1.x
by Wilberth Perez 15 Jul '10

15 Jul '10

Hi: Exists some instructions for /upgrade dovecot/ v1./2 to dovecot v2.0rc2 ? Cheers. /

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[Dovecot] IMAP super user
by Thiago Henrique 15 Jul '10

15 Jul '10

Hello, Is there any directive in Dovecot similar to 'imap_admins' of Cyrus? I plan to migrate from Cyrus to Dovecot. But I need a admin user which is able to obtain information about the quotas of common users. Thank you. -- []'s Thiago Henrique Network Administration Digirati Networks K8 Networks

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[Dovecot] help on migrating some old Maildirs
by Leonardo Rodrigues 15 Jul '10

15 Jul '10

Hi, i need to restore some old mail backups from a system i wasnt the admin. Emails are on Maildir, which i'm using on the actual server, so should be no big deal. I'm just thinking of copying files from the folders i need, from the old backup, to the specific dirs on the actual system. buuuut, watching the backup, i noticed that LOTS of files on the Maildirs do not have the S= parameters on its name nor W=. For example: 1230230396.V80bI4e007fM790805.correio.domain.com.br:2, 1230463524.V80bI4e0080M837823.correio.domain.com.br:2, 1230571206.V80bI4e0081M519106.correio.domain.com.br:2, 1231170098.V80bI4e0083M519957.correio.domain.com.br:2, 1231682500.V80bI4e0084M584988.correio.domain.com.br:2, files from the actual system looks like: 1278311553.M754372P13693.correio.domain.com.br,S=5742,W=5864:2, 1278668323.M110437P31421.correio.domain.com.br,S=4489,W=4590:2, 1278311669.M981814P13835.correio.domain.com.br,S=7404,W=7563:2, 1278669074.M556000P31506.correio.domain.com.br,S=4397,W=4504:2, i've already tested copying those files to a current Maildir and it works just fine, no problem at all on that. There's no problem on the restore of those messages itself. Anyway, my questions are .... 1) do the lack of S= and W= parameters will negatively impact on something ? Quota calculation comes to my head about that .... as i'll have to restore several thousands of messages, i'm worried about negative impacts on anything 2) is there any way of having dovecot to calculating the S= and W= parameters and renaming those files and, thus, avoiding some negative impact caused by the lack of them ? i'm using dovecot 1.2.11 ...... thanks ! -- Atenciosamente / Sincerily, Leonardo Rodrigues Solutti Tecnologia http://www.solutti.com.br Minha armadilha de SPAM, NÃO mandem email gertrudes(a)solutti.com.br My SPAMTRAP, do not email it

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[Dovecot] Director proxy timeout
by Brad Davidson 15 Jul '10

15 Jul '10

Timo, Is the director proxy inactivity timeout configurable? I just recently attempted to switch our production webmail's imapproxy system to use a pool of two directors and ran into problems with it apparently disconnecting them unexpectedly. I don't believe that it IDLEs, I think it just UNSELECTs to reset the state and then keeps the connection open until it's used again, or until a configurable delay has elapsed, after which it logs out on its own. I've got the imapproxy inactivity delay set to 300 seconds, and it seems like the director is disconnecting them before that time is up. I haven't had the same problem when imapproxy connects directly to the backend servers, which are running 1.2.12. On the webmail system, imapproxy is logging a LOT of: Jul 11 21:10:21 cc-mailapps1 in.imapproxyd[28477]: IMAP_Line_Read(): connection closed prematurely. The director shows: Jul 11 21:10:14 cc-popmap7p dovecot: imap-login: proxy(jacintha): disconnecting 172.25.142.164 The backend server shows: Jul 11 21:10:14 cc-popmap2p dovecot: imap: user=<jacintha>, rip=10.142.0.162, pid=8629: Connection closed bytes=855/46109 Roundcube seems to handle the disconnects pretty badly, leaving a bunch of Apache processes chewing up CPU time. -Brad

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[Dovecot] pigeonhole, regex, UTF-8
by Trever L. Adams 14 Jul '10

14 Jul '10

Hello, I am just learning about pigeonhole and thinking of using it. I see that regex doesn't supportf UTF-8. Any particular reason for this? If it is a library problem is the library, have you looked at tre? I am using it in a project (I am using it in wchar_t mode because elsewhere all date is converted to wchar_t). It does work with UTF-8. Thanks, Trever

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