September 2010 - dovecot

[Dovecot] Documentation for "altpath" / "altmove" / ?"Alternate storage"
by William Blunn 06 Sep '10

06 Sep '10

I was thinking about documentation for alternate storage. We have a few mentions at: http://wiki2.dovecot.org/MailboxFormat/dbox http://wiki2.dovecot.org/Tools/Doveadm http://wiki2.dovecot.org/Tools/Doveadm/Altmove But I was thinking it would be helpful if there could be a page about alternate storage. I could write the page, but I currently have so many unknowns that I think it would be better to gather some more information before writing the first draft. Note that I don't necessarily fully understand all the surrounding concepts, so I could have written something below which is based on a (vague) belief. Please correct me if I am wrong, or even if it's sort-of right but doesn't quite hit the point squarely. We might want to have a name for the wiki page. Perhaps "AlternateStorage"? Of course if it only applies to dbox, then another idea is to make it a section on the page "MailboxFormat/dbox". All suggestions gratefully received. I would be interested in an overview of what alternate storage is. It seems to be a way of transparently moving message data to alternare storage, with the idea that the alternate storage may be on a different filesystem which may be cheaper and/or slower than the main storage, which may be an economic way to store messages where the fastest access to them is less important. It is transparent in as much as IMAP/POP users will not normally be able to tell if any given message has been moved to alternate storage. A single mail folder can end up containing a mixture of messages stored in main storage and alternate storage. (Another question begged here of what consistent term should be used to refer to the main storage. Could be "main storage", "normal storage", "ordinary storage".) Also I would be interested to know the development/stability status of alternate storage: experimental / alpha / beta / stable. Also I would be interested to know the applicability against mailbox formats: mbox / maildir / sdbox / mdbox / cydir. Also I would be interested to know which data gets moved to the alternate storage, and which data stays in the main storage: message-data / control-data / index-data / combined-control-and-index-data. Also I would be interested to know how data can be moved to alternate storage. Seems to be that is only done by invocation of "doveadm altmove". There is a page for that already so we can link to that. Also it would be interesting to have some idea of how it works. For example there might be an "alternate storage" flag in the indexes, or Dovecot tries the main location first and if not found there then it tries the alternate storage. Just a brief overview, and any pertinent ramifications of that. Bill

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Re: [Dovecot] \" character in folder name results in strange LIST
by Samuel Kvasnica 06 Sep '10

06 Sep '10

Hi Timo, >> * LIST (\HasNoChildren) "/" "folder1" >> * LIST (\HasNoChildren) "/" "folder2" >> * LIST (\HasNoChildren) "/" {9} >> six"wafer >> . OK List completed. >> >> Note the {9} length of the following real folder name. Is this normal >> handling of special folder names ? >Yes. Well, I did try other servers and e.g. on scalix I'm getting this: * LIST (\X-DirectRef=000d7f94a4731510 \X-ModDate=20100814200222) "/" "six\"wafer" I cannot find anything relevant in RFC3501 >> Mail clients do not seem to like this response. >What clients? They're buggy then.. Well, of course, way too many clients are :( at least Thunderbird will go totally crazy when getting this kind response. (My old python scripts expecting string, not a tuple go crazy as well... :-< )

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[Dovecot] Alternate mail_location prefix for homedir
by Henry C. 05 Sep '10

05 Sep '10

Hi, I'm switching from UW-imap to dovecot 2.0.1 and was wondering about the mail_location config: mail_location = mbox:~/.:INBOX=/var/mail/%u Notice '.' in '~/.' above. This seems to resolve the ~/mail problem when switching from UW-imap (ie, no 'mail' prefix). doc/wiki/Migration.UW.txt doesn't mention using '~/.', so I was wondering whether there are any gotchas anyone can think of. Thanks Henry

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[Dovecot] psr2md
by Benoit LORAND 05 Sep '10

05 Sep '10

hello, I just write script who converts outlook pst files to the maildir format. I want to share it to community. I have tried it with outlook 2003 and outlook 2007. http://www.blorand.org/index.php/Pst2md i hope it will help someone. -- Benoît LORAND http://www.blorand.org benoit.lorand(a)blorand.org

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Re: [Dovecot] Problems with dovecot 2.0, sieve and mdbox
by Patrick Westenberg 04 Sep '10

04 Sep '10

Why so complicated?   ---- Originalnachricht ---- Von: fakessh <fakessh(a)fakessh.eu> Gesendet: 4 Sep 2010 17:31 +02:00 An: Patrick Westenberg <pw(a)wk-serv.de> CC: <dovecot(a)dovecot.org> Betreff: Re: [Dovecot] Problems with dovecot 2.0, sieve and mdbox On Sat, 04 Sep 2010 15:27:26 +0200, Patrick Westenberg <pw(a)wk-serv.de> wrote: > Hi guys, > > I tried to use a global sieve skript to sort spam mails into > a subfolder of INBOX. I´m using mdbox. > > The log shows that the script is called and executed but it is > not able to find or create the mailbox: > > Sep 4 15:18:55 mercury dovecot: lmtp(6237, mail(a)steulerfliesen.de) > Debug: Namespace : Permission lookup failed from > /var/mail/steulerfliesen.de/mail/mdbox/mailboxes/Spamverdacht > Sep 4 15:18:55 mercury dovecot: lmtp(6237, mail(a)steulerfliesen.de) > Debug: Namespace : Using permissions from > /var/mail/steulerfliesen.de/mail/mdbox: mode=0700 gid=-1 > > Sep 4 15:22:37 mercury dovecot: lmtp(6261, mail(a)steulerfliesen.de) > Debug: Namespace : Permission lookup failed from > /var/mail/steulerfliesen.de/mail/mdbox/mailboxes/INBOX.Spamverdacht > Sep 4 15:22:37 mercury dovecot: lmtp(6261, mail(a)steulerfliesen.de) > Debug: Namespace : Using permissions from > /var/mail/steulerfliesen.de/mail/mdbox: mode=0700 gid=-1 > > My skript looks like this: > > require "fileinto"; > if header :contains "X-Spam-Flag" "YES" { > fileinto "Spamverdacht"; > } > > I also tried: > > require "fileinto"; > if header :contains "X-Spam-Flag" "YES" { > fileinto "INBOX.Spamverdacht"; > } > > How can I fix this? > > Regards > Patrick the script should be require ["fileinto","regex","comparator-i;ascii-numeric","reject","relational"]; # rule:[spammanage-before] if header :value "ge" :comparator "i;ascii-numeric" ["X-Spam-score"] ["500"] { discard; stop; } if header :value "ge" :comparator "i;ascii-numeric" ["X-Spam-score"] ["100"] { fileinto "Junk.spam"; stop; } if header :value "ge" :comparator "i;ascii-numeric" ["X-Spam-score"] ["10"] { fileinto "Junk"; } elsif anyof ( header :contains "Received" [ "[4.63. "[218.160.", "[218.242.]" ] ) { fileinto "Junk"; } elsif anyof ( header :contains ["SPAM", "X-Spam-hits"] ["ADDRESSES_ON_CD", "X_OSIRU_DUL", "X_OSIRU_SPAMWARE_SITE", "X_OSIRU_SPAM_SRC" ] ) { fileinto "Junk"; }

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[Dovecot] fts, solr, and client support
by Kelsey Cummings 04 Sep '10

04 Sep '10

I've been playing around with the fts plugins and currently have solr up and running. While the initial indexing time is pretty rough, the search performance is impressive. I've run into a problem though- so far as I can tell, thunderbird (and most other popular clients?) won't actually take advantage of it. Even using thunderbird's advanced search and checking the 'run serach on server' box doesn't push the search to the server. If most popular clients don't support it, there doesn't seem much point in setting it up; which is a shame, solr beats the snot out of the built in search for thunderbird. That said, is anyone running any of the fts plugins in a large scale environment? If so, what kind of scaling issues do you see? How do the search servers compare hardware wise to users count/spool size? -- Kelsey Cummings - kgc(a)corp.sonic.net sonic.net, inc. System Architect 2260 Apollo Way 707.522.1000 Santa Rosa, CA 95407

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[Dovecot] a question about QRESYNC extension
by Joe Wong 04 Sep '10

04 Sep '10

Hi Timo, How long is the MODSEQ NUMBER kept for each UID ever exists in the mailbox? - Joe

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[Dovecot] user/domain-dependent autosubscribe ?
by Per Jessen 03 Sep '10

03 Sep '10

Newbie alert! Dovecot 2.0rc3 I've got autosubscribe working very well, but I need to make it dependent on the domain - e.g. domain example.com will have folders (a,b,c), while domain example2.com will have (d,e,f). Any hints on how to achieve that? /Per Jessen, Zürich

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[Dovecot] SIS for maildir?
by Mike Abbott 03 Sep '10

03 Sep '10

When might deduplication of attachments work with maildir?

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[Dovecot] Best way to migrate from qmail-ldap's autoreply?
by Attila Nagy 03 Sep '10

03 Sep '10

Hi, qmail-ldap uses four LDAP attributes for handling autoreplies in qmail-local: - deliverymode (to see whether the autoreply should be send) - mailreplytext, which is a base64 encoded multiline string* - mailreplystart and mailreplystop, unix dates I'm wondering how this could be handled with Dovecot (2.0) in the most easier way. All I could find out so far: - patching the code - writing a plugin (it it possible to get these LDAP attributes in the LMTPd with a single userdb-lookup and get it from the plugin during a new mail event? Any examples?) - conditionally provide these values to a sieve script and process them accordingly (the base64 string and maybe the dates seem to be hard for the first glimpse) the mad stuff: - using an LD_PRELOAD library, which emulates per user sieve scripts according to LDAP lookups (gives a lot more flexibility) - an LMTP proxy/server, which does all this and forwards the traffic to the Dovecot LMTPd/deliver process * a sample mailreplytext looks like this: '''%HEADER% Content-type: text/plain; charset="utf-8" távol vagyok''' (of course this is in UTF-8).

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