- dovecot - dovecot.org

[Dovecot] help a journalist: What do you wish the CIO understood about fighting spam?
by Esther Schindler 30 Jan '07

30 Jan '07

Hi, folks. I'm senior online editor at CIO.com, and I'm working on an article for which I'd very much like your help. There's often a lack of communication between techies and top company management. Maybe they don't want to hear about problems; perhaps you give them technical details that are far more granular than they want to know. But dealing with spam is a topic that every e-mail admin has to cope with -- and I'm not sure that the CIO knows the real issues. I have the ear of the boss, however. Essentially, I'm trying to put together the collected wisdom of e-mail and network admins in a fashion that CIOs will understand. Or at least one teeny corner of it. So I have a very simple question to pose to you: ***If you could get your CIO (or top management) to understand one thing, just ONE thing, about fighting spam, what would it be?*** And the follow-up: why did you pick that one item? Feel free to share anecdotes, horror stories, even success stories. While I hope that every CIO will read this article, I also hope that it becomes the document you bring to a new manager ("Here: this is what's important to me"). I'm sure there are plenty of other things that you wish your CIO grokked, whether about e-mail administration or other topics (not the least of which is "the e-mail admin is underpaid"). But I do have to limit myself somehow, and "what's important about fighting spam" has a lot of leeway. I'll be sure to stop by here (as I expect others want to participate in the conversation), but feel free to cc me with your response or send me a private message. I'm hoping for a rather fast turnaround on this article, so please blurt out your first thoughts rather than plan on writing a nice, leisurely response. If all goes well, I'd like to get this article posted in the next couple of weeks. Please be sure to let me know how to refer to you in the article; the usual format is &name, &title, &company and &location ("Esther Schindler is a senior developer at the Groovy Corporation in Scottsdale Arizona"). If you give me some kind of context I'm willing to work without one. That is, I do need some identifying characteristics to give the article credibility ("Esther works at a large finance company in the Southwest"). Esther Schindler senior online editor, CIO.com http://blogs.cio.com/blog/37

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[Dovecot] ACL problem
by Barry Kwok 30 Jan '07

30 Jan '07

I am using 1.0-rc19 version. I made a global ACL file in /etc/dovecot-acls/Public as: owner lrsi user=manager rl The owner cannot delete/move mail inside his Public folder as I want. But the user "manager" cannot subscribe/view to other's Public folder. What I have missed? Barry

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[Dovecot] mail_plugins = mail_log (pop3) crashing 1.0.rc18 and rc19
by GK 30 Jan '07

30 Jan '07

Hello Thank for adding mail_log plugin in Dovecot POP3/IMAP server. But when I am use "mail_log" in pop3 secction Dovecot getting the following log message: ... Jan 26 15:34:11 rtr dovecot: pop3-login: Login: user=<gk2>, method=PLAIN, rip=8x.xx.xx.xx, lip=8x.xx.xx.xxx Jan 26 15:34:11 rtr dovecot: POP3(gk2): dlopen(/opt/dovecot/v1.0rc19/lib/dovecot/pop3/lib20_mail_log_plugin.so) failed: /op t/dovecot/v1.0rc19/lib/dovecot/pop3/lib20_mail_log_plugin.so: undefined symbol: str_sanitize Jan 26 15:34:11 rtr dovecot: child 29501 (pop3) returned error 89 Jan 26 15:34:19 rtr dovecot: pop3-login: Login: user=<kp>, method=PLAIN, rip=8x.xx.xx.xx, lip=8x.xx.xx.xx Jan 26 15:34:19 rtr dovecot: POP3(kp): dlopen(/opt/dovecot/v1.0rc19/lib/dovecot/pop3/lib20_mail_log_plugin.so) failed: /opt /dovecot/v1.0rc19/lib/dovecot/pop3/lib20_mail_log_plugin.so: undefined symbol: str_sanitize Jan 26 15:34:19 rtr dovecot: child 29507 (pop3) returned error 89 ... Mail_log in IMAP section works fine. OS: CentOS 4.4 / PLD 2

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[Dovecot] Cannot fill the maildir with mails
by Peter Selter 30 Jan '07

30 Jan '07

Hello! I have installed Dovecot yesterday as a simple connection between a local mailbox and Novell Evolution. I have set up a POP3 service that I can succesfully connect to. I chose the Maildir structure but the whole box is empty. When I try "echo ´test´ | mail -s ´test´ user42" it doesn´t reach the mailbox. What can I do? I could also try the mbox format but Evolution has problems connection to an mbox file, it just says "loading..." and nothing happens. Any help would be appreciated :-) regards, Peter ____________ Virus checked by G DATA AntiVirusKit

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[Dovecot] popa3d migration
by FiL ＠ Kpoxa 30 Jan '07

30 Jan '07

Hello, I'm sure there is no good answer to my question, but it doesn't take much to ask, so I will. I am about to migrate my current Dovecot IMAP + Popa3d mailbox server to Maildir. I need to keep both protocols (IMAP and POP3) and will be switching to Dovecot on both. The question is simple - is there any way to keep POP3 UIDs through migration, so people won't get duplicates in their inboxes. Second question is not that important but if somebody has a good answer it will be really nice - is there any way to keep IMAP UIDs? With IMAP it won't create dups, but loosing (changing) UIDs will create extra load on the server. I know, this is more about mailbox->Maildir conversion, not dovecot, but this is the only place I can ask this question P.S. am running dovecot on linux FC5 right now, but will be upgrading to FC6 / dovecot 1.0 release at the time of migration. Won't do it before 1.0 final comes out Thank you, FiL

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[Dovecot] dirsize quotas crashing 1.0.rc19
by Dean Brooks 30 Jan '07

30 Jan '07

Hi, I've been trying to get dirsize quotas to work properly with 1.0rc19 and Dovecot consistently crashes when attempting to do file copies once a user is over quota. Dovecot works fine for us for regular mbox based IMAP, but as soon as I add the following two entries in their respective locations in dovecot.conf: mail_plugins = quota imap_quota (in the imap{} section) quota = dirsize:storage=2000 (in the plugin{} section) If a user goes over quota, and they attempt to copy a file to a folder via IMAP, all I get is this: dovecot: [ID 684838 mail.error] child 20868 (imap) killed with signal 10 Is anyone successfully using dirsize:storage quotas with 1.0rc19? If so, can someone else verify if they see crashes like this? As soon as I remove the quota plugin, the crashes go away and all is good, so there's obviously some sort of problem in the quota plugin. Regards, Dean Brooks dean(a)iglou.com

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Re: [Dovecot] repeat downloads of message headers in 1.0rc19
by James Garrison 29 Jan '07

29 Jan '07

I reported this against rc7 and rc8, and still see it occasionally. (I'm running the rc8 that comes with Fedora 5). It is always associated with this message in dovecot.log: dovecot: Oct 23 19:26:17 Error: POP3(user(a)domain.tld): mbox sync: UID inserted in the middle of mailbox /var/mail/vhosts/domain.tld/user (12 > 4, seq=2, idx_msgs=5) Once this happens, dovecot will refuse to clear out the mbox file when the user retrieves email via POP. Each time the user logs in to retrieve mail s/he gets everything in the mbox, which continues to grow. The only fix I've been able to find is to manually delete the mbox file. I'm using postfix as the MTA. -- James Garrison Athens Group, Inc. mailto:jhg@athensgroup.com 5608 Parkcrest Dr http://www.athensgroup.com Austin, TX 78731 SKYPE callto:jhg-athensgroup (512) 345-0600 x150 PGP Key ID: 0x22E8DA2A

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[Dovecot] repeat downloads of message headers in 1.0rc19
by Brian G. Peterson 29 Jan '07

29 Jan '07

I upgraded one server to 1.0rc19 (from rc15) over the weekend, and have since received several reports of dovecot erroneously retrieving older messages as new mail. I've seen this myself intermittently on KMail, and users have reported it on Thunderbird, Squirrelmail, and Outlook. I see some things in the archives that suggest that this was a problem in older 1.0 release candidates, but hadn't experienced the problem myself until just now. Has anyone else seen this problem? Regards, - Brian

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Re: [Dovecot] PLONK THE TROLL... WAS: Re: Best small server config
by Jakob Curdes 29 Jan '07

29 Jan '07

Stewart Dean schrieb: > I just occurred to me that Dovecot has arrived! It is only when a > product is stable, has a substantial leadership, followship, community > and reputation, that the remoras and lampreys of the computer world > come to attach themselves for a ride...as expressed in their outraged > demands for free, immediate and substantial assistance... > It's been said that "imitation is the sincerest form of > flattery"....perhaps there's a Dean's Law, something along the lines of: > "Newbie leeching is the surest sign of an open-source application's > acceptance" > > Congratulations, Timo and the core team. You are accepted as a > success. Go buy yourselves a magnum of champagne with your own money > and celebrate! I copy the congratualations although if the conclusion holds, dovecot has arrived *some* time ago ... we had some odd questions on this list a good while ago. JC ps. I don't see a list copy of this msg so I forwarded him one for the congratulations...

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[Dovecot] Best small server config
by - 29 Jan '07

29 Jan '07

Hi, Busy with dovecot on a linux server with not very much RAM in it (512 MB max total). On this server dovecot will only handle about 12 users, with never more than 3 IMAP webmail users at a time, and a maximum of 2 POP3 users at a time using it. I'm going all secure later on, but first I would like your opinion on what configuration best to use with, say, max 5 users busy at one time, and have it use as little RAM and CPU as possible. (Same machine is also running httpd, squirrelmail, php5, postfix, clamd, clamsmtpd, sshd.) Here's my /etc/dovecot.conf now: # protocols = imap pop3 imap_listen = * pop3_listen = my.servers.ip.address (hidden for this list) ssl_cert_file = /etc/ssl/certs/imapd.pem ssl_key_file = /etc/ssl/private/imapd.pem ssl_parameters_file = /var/run/dovecot/ssl-parameters.dat ssl_parameters_regenerate = 320 login_dir = /var/run/dovecot-login login = imap login = pop3 default_mail_env = maildir:/home/%u/Maildir mailbox_idle_check_interval = 40 mail_full_filesystem_access = yes login_user = dovecot login_process_size = 64 login_process_per_connection = no login_processes_count = 4 login_max_processes_count = 4 login_max_logging_users = 5 max_mail_processes = 140 imap_process_size = 192 pop3_process_size = 64 first_valid_uid = 500 last_valid_uid = 520 mail_cache_fields = MessagePart mbox_locks = fcntl mbox_read_dotlock = no mbox_lock_timeout = 380 auth = default auth_mechanisms = plain auth_userdb = passwd auth_passdb = pam auth_process_size = 64 auth_user = root # Any insight or advice welcomed! Ben de G.

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