November 2007 - dovecot

[Dovecot] Broken system.
by Marcelo Iturbe 22 Nov '07

22 Nov '07

Hello, I had an Inbox with 975,604 emails on ext3 filesystem. I keept getting dropped on the comand "copy 1:2000 inbox2", the syslog gave me an error message indicating "out of memory" problems. This despite the fact that the server has 800MB of ram free. Anyways, I asked if I could manuanlly move the files at the filesystem level or if that would mess up dovecot (break the GUIDs etc). I was informed that dovecot does not use GUIDs and that I could go ahead and move the emails at the shell level. So I did that, now the /cur folder only has 40,000 emails, but when I connect to the account via telnet, I still get the following: telnet localhost 143 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK Dovecot ready. 110 login somelameuser somelamepass 110 OK Logged in. 111 select inbox * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 975604 EXISTS * 0 RECENT * OK [UNSEEN 1] First unseen. * OK [UIDVALIDITY 1188426666] UIDs valid * OK [UIDNEXT 979500] Predicted next UID 111 OK [READ-WRITE] Select completed. So even though there are only 40,000 emails in /cur, dovecot still thinks that there are 9756304 emails. How can I fix this? Thanks Marcelo

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[Dovecot] dovecot loading during boot
by Robert W Nocella 22 Nov '07

22 Nov '07

I have two RHEL4 email servers running postfix/MailScanner which use dovecot. They work great. But during bootup the nfslock script in my init.d loads rpc.statd and calls portmap to get a port number. Portmap keeps giving rpc.statd the imaps port number (993). I then have to stop my mail server services, manually start dovecot, then restart the mail server services and everything goes merrily on its way. Stopping the mail server services drops rpc.statd from using port 993(according to netstat -tlnp). This allows dovecot to take it by default. How to I reserve imap and imaps ports exclusively for use by dovecot. The imap and imaps ports are listed in /etc/services. Thanks for any insight. -- Robert W Nocella Systems Analyst III Computer Support Group Manager UNM ECE Department UNM SOE IT Agent

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[Dovecot] Getting two mails.....
by Bjørn T Johansen 22 Nov '07

22 Nov '07

When I receive a mail that is addressed to my email address and also with a cc to a mailinglist I subscribe to, I get two mails, which I guess is expected... But I have just moved to Dovecot from Cyrus, and Cyrus seems to know that this is the same mail, so only one of those two mail is stored on the imap srv... Is there some option I am missing in Dovecot or isn't this possible using Dovecot? Regards, BTJ -- ----------------------------------------------------------------------------------------------- Bjørn T Johansen btj(a)havleik.no ----------------------------------------------------------------------------------------------- Someone wrote: "I understand that if you play a Windows CD backwards you hear strange Satanic messages" To which someone replied: "It's even worse than that; play it forwards and it installs Windows" -----------------------------------------------------------------------------------------------

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[Dovecot] Creating "special" folders?
by Bjørn T Johansen 22 Nov '07

22 Nov '07

Is there anyway to make dovecot create Sent, Draft, etc folder automatically? Or is this the job for a MUA? Regards, BTJ -- ----------------------------------------------------------------------------------------------- Bjørn T Johansen btj(a)havleik.no ----------------------------------------------------------------------------------------------- Someone wrote: "I understand that if you play a Windows CD backwards you hear strange Satanic messages" To which someone replied: "It's even worse than that; play it forwards and it installs Windows" -----------------------------------------------------------------------------------------------

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[Dovecot] pop3_lock_session and NFS
by salimlist＠sdv.fr 22 Nov '07

22 Nov '07

Hello, I need an advice about POP3 and NFS with Dovecot 1.0 (as 1.1 is still tagged beta) . I currently have all messages and indexes under a NFS partition . I thus turned cache off using actimeo=0 . Of course, my current architecture does not allow me to keep the same user on the same dovecot server. Now, I have some NFS issues with high percentages of getattr() . If I understood well, the cache must be disabled, because of the case of 2 differents computers could log on the same time and mess up the index file . If I use the directive pop3_lock_session and enable it, that should block conccurent pop3 access using a lock file . Can I consider it safe enough to turn on the NFS cache (ie removing actimeo=0) ? Thanks in advance Salim Ps: For you info, we use dovecot here for a big cable broadband ISP, with 2,000,000 mailboxes using 30 dovecot POP3 servers,10 dovecot proxy servers and we are really happy with your nice software, we expect a lot from 1.1 .

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[Dovecot] virtual user login
by Paul A 21 Nov '07

21 Nov '07

Hi, I have server with multiple virtual domains and this server also accepts mail for the local domain. I'm using postfix and have the following setup for a virtual sales(a)domain.com mapped to custsales@localhost I was wondering if there is a way to login with the virtual email address, for example sales(a)domain.com? I would also like to still be able to login with the local user as well. TIA, P

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[Dovecot] Re-download emails from pop3 server
by Evaggelos Balaskas 21 Nov '07

21 Nov '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 i use dovecot-1.0.7 for pop3 & imap and virtual users (via text) without any problem. But when my thunderbird is setup not to delete from server (pop3) every time i do get i redownload all my emails from the server. Can anybody advice ? - -ebalaskas.gr Unix System Engineer Informatics Engineer Technological Education -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHREmuWIK+Pe9twhoRAvCkAJ9WwdL9gqcfQGMMlfcZlmjtYxrkcgCgvJPt 5DwvkNFPEOwb7FT4Dt4YSns= =pyHc -----END PGP SIGNATURE-----

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[Dovecot] convert plugin
by maximatt 21 Nov '07

21 Nov '07

hi.... i have problems with convert plugin, because he delete the message maildir inbox (i dont know this is't right)... i set dovecot (Dovecot v1.0.7) to listen with pop and imap protocols... for example.... if user1 sends to user2 a msg via pop3 or imap, i can see the msg in user2 imap account, but when i read messages from user2 pop account, i see the message, but the message was deleted from imap account.... ¿:(? these are my settings about this issue: mail_location: maildir:/export/home/vmail/prueba/%n mail_plugins(imap): quota imap_quota convert mail_plugins(pop3): quota convert pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %u plugin: quota: maildir convert_mail: mbox:~/mail:INBOX=/export/home/vmail/prueba/%u maybe i not understand yet wich if this plugin do :( thanks!!! :)

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[Dovecot] Limiting the size of index files
by Edgar Fuß 21 Nov '07

21 Nov '07

Is there a way to limit the amount of disc space dovecot will use for its index cache? Other than putting that on a separate partition, I mean. We host our mail data on the file server, however, the index files are located on local discs on each of the mail servers and seem to grow without bounds. We're above 250M now and soon /var will run out of space. Thanks for any help.

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[Dovecot] dovecot mysql support
by jan gestre 21 Nov '07

21 Nov '07

Hi Guys, I'm using CentOS 4.5, is the dovecot default rpm comes with mysql support? Do I need to rebuild it? TIA. jan

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