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[Dovecot] Using NFS - which OS would you chose
by Jonathan 09 Oct '06

09 Oct '06

Hi, I'm still looking at a large (under 100,000) user deployment of Dovecot, with a NetApp NFS server as the back-end storage. I've read a few remarks about needing the latest NFS patches from Trond Myklebust to prevent lock-ups. My management would be happiest with a vendor-supported distribution (and especially Suse Linux Enterprise Server 9 or 10). We will be running on an x86 platform. Under these circumstances, which operating system/distribution would you choose? And why? Suse SLES9 OpenSuse Debian RedHat FreeBSD Solaris_x86 Nexenta (www.nexenta.org) Many thanks for your thoughts/war stories. Jonathan.

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[Dovecot] Cache fields
by Tony Kay 09 Oct '06

09 Oct '06

Hi, We are using Dovecot with maildir, and the mail client requests flags, internaldate, and uid for all messages on folder open, which on average takes 3 seconds, but for large folders is much longer. It seems like I want mail_cache_fields to include "flags", but which date corresponds to internaldate? date.received? Is UID always cached for messages, or does it have to read through the directory to get them? Are there other optimizations I can do that will improve the speed of folder opens? -- Anthony Kay University Computing Center (541) 346-1719 GPG Fingerprint: B0DB D46A 60AF FAE7 A94A 5075 0CB4 4D88 9F4F 7F09 This isn't right. This isn't even wrong. Wolfgang Pauli

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[Dovecot] Date Received question
by Timothy Martin 09 Oct '06

09 Oct '06

I migrated from Courier to Dovecot, and today I notice that all my "date received" fields in my client (apple mail) show as the approx date/time of the migration rather than when the emails were received from the smtp server. Is this expected behavior? I normally sort by received date rather than sent -- since I don't care when someone sends something as much as when i get it. But those fields are totally bogus now. .tim

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[Dovecot] Tru64 Unix and SIA
by Simon L Jackson 09 Oct '06

09 Oct '06

I have recently written a (minimal) Tru64 Unix SIA password module for Dovecot as part of testing a Dovecot installation. Has anyone else written a Tru64 Unix SIA module? Is anyone else interested in such a module? If so, how might I/we go about getting this/such a module into the main Dovecot source? Thanks -- Simon L Jackson Carringbush.Net +- Carringbush.Net Hosting * Development * Advice Web: www.carringbush.net <http://www.carringbush.net/> Email: simon.jackson(a)carringbush.net <mailto:simon.jackson@carringbush.net> Office: +61 3 9411 4400 Support: +61 3 9411 4444 Fax: +61 3 9411 4499 Level 1 15 Bedford Street Collingwood VIC 3066 Australia P.O. Box 1464 Collingwood VIC 3066 Australia +-

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[Dovecot] dovecot starts and then exit
by Ed Lucero 08 Oct '06

08 Oct '06

I've just installed dovecot on FreeBSD 6.1. Running MySQL 5.0 on another server. Postfix version 2.3.3 Dovecot starts then exits with no error messages. I've run it as a daemon and on the command line with -F option How do I run it in debug mode so I can figure out why it does not stay running. The maillog has a startup message dovecot: Dovecot v1.0.rc7 starting up Ed Dovecot.conf ## Dovecot configuration file # IC - EL 2006.09.29 protocols = imap imaps pop3 pop3s # IC - EL 2006.09.29 disable_plaintext_auth = no # IC - EL 2006.09.29 ssl_disable = no # IC - EL 2006.09.29 ssl_cert_file = /usr/share/ssl/s/Cert.pem ssl_key_file = /usr/share/ssl/s/PrivateKey.pem login_process_size = 64 # IC - EL 2006.09.29 login_processes_count = 6 # IC - EL 2006.09.29 login_greeting = InternetCrusade ready. # IC - EL 2006.09.29 #default_mail_env = maildir:/var/mail/%Ld/%Ln/%2.256Hp default_mail_env = maildir:/var/mail/%Ld/%Ln/ mail_extra_groups = mail verbose_proctitle = yes first_valid_gid = 0 protocol imap { imap_client_workarounds = delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep } protocol pop3 { # IC - EL 2006.09.29 pop3_uidl_format = %v.%u pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol lda { sendmail_path = /usr/sbin/sendmail } auth default { # IC - EL 2006.09.29 mechanisms = plain login cram-md5 digest-md5 ntlm # IC - EL 2006.09.29 passdb sql { args = usr/local/etc/dovecot-sql.conf } # IC - EL 2006.09.29 userdb static { args = uid=5000 gid=5000 home=/var/mail/%Ld/%Ln } # IC - EL 2006.09.29 socket listen { client { user = postfix group = postfix path = /var/spool/postfix/private/auth mode = 0660 } } } #dict { #quota = mysql:/etc/dovecot-dict-quota.conf #} dovecot-sql.conf driver = mysql connect = host=db1.sandiegort.com user=dovecot password=BuatSmiT dbname=icmail default_pass_scheme = PLAIN password_query = SELECT password FROM emails WHERE account = '%n' AND domain = '%d' AND alias = 0

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Re: [Dovecot] SSL errors
by Bill Boebel 08 Oct '06

08 Oct '06

On Fri, September 29, 2006 11:46 am, Dominic Marks <dom(a)helenmarks.co.uk> said: >> Actually, I found in the archives that I should increase login_process_size if >> I'm not running with login_process_per_connection. I have done this and that >> seems to have taken care of the malloc failure. However I am still getting a ton >> of these every few seconds: >> >> Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF >> [70.171.61.190] >> Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF >> [24.236.204.154] >> Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF >> [70.171.61.190] >> Sep 29 11:30:08 director4 dovecot: imap-login: SSL_read() syscall failed: EOF >> [65.242.19.3] >> > > These are client disconnects, I believe. > Yep, all of my customers who had IMAP SSL problems are reporting that the problem is fixed now that I have increased login_process_size to 64 MB. In just two hours though the imap-login process is up to 33 MB, and continuing to grow. Is that normal? This particular server handles 1200 IMAP connections and 800 IMAPS connections concurrently on average. Bill

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[Dovecot] Outlook "IMAP server closed connection"
by Mark Adams 08 Oct '06

08 Oct '06

Hi All, Dovecot 1.0rc2. Currently having a problem with Outlook clients popping up with the error; "Your IMAP server has closed the connection. This may occur if you have left the connection idle for to long" I initially though this would be the imap_client_workarounds = outlook-idle option, but this is currently set and always has been. I dont think this is a known issue that has been fixed with newer releases, as we have rc2 on another server that does not have this problem. Any help thankfully recieved. Regards, Mark

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Re: [Dovecot] dovecot-1.0.rc7 install probs
by Timo Sirainen 08 Oct '06

08 Oct '06

On Fri, 2006-10-06 at 19:55 -0400, Steve Maring wrote: > and the make and make install appear to go smoothly. However I am > struck by the lack on an include directory in the install location. > I'm not sure if that means anything. Doesn't mean anything. No header files are installed. > AUXLIBS=" \ > -L/usr/local/dovecot-1.0.rc7/lib/dovecot \ Postfix doesn't need any Dovecot libraries or anything to build Dovecot SASL support. > but the postfix make always dies with: > > smtpd.c:4534: error: âdovecotâ undeclared (first use in this function) Well, don't know about that. I'd ask from Postfix list.

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[Dovecot] Add virtual users to the Dovecot configuration
by Jens E. Madsen Jr. 08 Oct '06

08 Oct '06

Dear Dovecot Mail List, I have used Dovecot for quite a while to service remote users on my SOHO network. A local not-for-profit asked about getting their own dedicated domain name for mail. I followed: http://www.howtoforge.com/linux_postfix_virtual_hosting to set up a virtual, but the article leaves out system accounts and I have not been able to access both system and virtual users at the same time. I have the following lines: default_mail_env = maildir:/var/spool/vmail/%d/%n/ which, when commented out, works for system users default_mail_env = mbox:~/mail/:INBOX=/var/spool/mail/%u which, when commented out, which works for virtual users If both are uncommented, only system users work. Wiki-ing and Googling, I learned that namespace could be applied to the problem. Here is the namespace from the configuration file. #namespace private { # Hierarchy separator to use. You should use the same separator for all # namespaces or some clients get confused. '/' is usually a good one. # The default however depends on the underlying mail storage format. #separator = # Prefix required to access this namespace. This needs to be different for # all namespaces. For example "Public/". #prefix = # Physical location of the mailbox. This is in same format as # default_mail_env, which is also the default for it. #location = # There can be only one INBOX, and this setting defines which namespace # has it. #inbox = yes # If namespace is hidden, it's not advertised to clients via NAMESPACE # extension or shown in LIST replies. This is mostly useful when converting # from another server with different namespaces which you want to deprecate # but still keep working. For example you can create hidden namespaces with # prefixes "~/mail/", "~%u/mail/" and "mail/". #hidden = yes #} How do I specify which users use which namespace. Is there a good description of namespaces and how to use them? Thanks Jens

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Re: [Dovecot] Automatically deleting Trash a la Courier
by Jeff Kowalczyk 08 Oct '06

08 Oct '06

Timo Sirainen wrote: > # Expire plugin. Mails are expunged from mailboxes after being there the > # configurable time. The first expiration date for each mailbox is stored in > # a dictionary so it can be quickly determined which mailboxes contain > # expired mails. The actual expunging is done in a nightly cronjob, which > # you must set up: > # dovecot --exec-mail ext /usr/libexec/dovecot/expire-tool > #expire = Trash 7 Spam 30 > #expire_dict = db:/var/lib/dovecot/expire.db For users implementing the expire-tool as an email retention policy, it may be helpful to add path wildcarding and exclusion to handle users with folder heirarchies. e.g., To implement a 1-year retention policy on messages in all folders, excluding all messages in and in subfolders of 'Archived Email': expire = Trash 7 Spam 30 * 365 expire_exclude = Archived\ Email\\*

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