September 2015 - dovecot

My website feedback
by Muzaffer Tolga Ozses 29 Sep '15

29 Sep '15

Hi, I gave a feedback about dovecot.fi website yesterday. It's awaiting moderation because it exceeded message size because it contains a screenshot. Was this ML the right place to post this? If not, please redirect me to the appropriate place. Regards,

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Newbie why is dovecot classified diff then sendmail or courier
by David Niklas 29 Sep '15

29 Sep '15

Hello, this is probably a dumb question, but I can't for the life of me figure out why sendmail and courier are classified universally as network-mail-mta whereas dovecot is in places like network-mail-general or some such place. I've used several Linux distros and have noted this keenly (they also normally classify photorec, the HD recovery tool as hardware-photography,so this may just be a mistake). I'm concerned that I'm looking into the wrong software for an mail transport/delivery agent. Thanks, David

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doveadm fetch line wrapping
by Peter Chiochetti 28 Sep '15

28 Sep '15

The manual at http://wiki2.dovecot.org/Tools/Doveadm/Deduplicate tells how to estimate what will be expunged: > doveadm -f table fetch -u jane 'guid uid' mailbox a_Box | sort I wanted to learn the subjects: > doveadm -f table fetch -u jane 'guid hdr.Subject' mailbox a_Box In the output, long lines will be broken up, continuation lines starting with a blank (mostly), disabling the sort > doveadm -f table fetch -u jane 'guid hdr.Subject' mailbox a_Box \ > | sed -e :a -e '$!N;s/\n\s//;ta' -e 'P;D' | sort --stable Some (gnu) sed foo joins them back together, the sort works again :) -- peter

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Error saving to IMAP folder
by Peter Thomassen 28 Sep '15

28 Sep '15

Hi, I have been using dovecot for multiple years, without a problem so far. I'm running version 2.0.19-0ubuntu2.2. A few weeks ago, the following problem started. When sending an e-mail with Thunderbird, the message is saved to the "Sent" IMAP folder after sending it out. Every few days, this

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Problem with SHA2/Geotrust and dovecot 2.0.9
by Il Neofita 28 Sep '15

28 Sep '15

Hi I have renew my geotrust certificate using sha2, and I have problem with Dovecot 2.0.9 and redhat 6.7. The same certificate is working in Apache. The error is dovecot: imap-login: Fatal: Can't load ssl_cert: There is no valid PEM certificate. and the configuration file is ssl_cert=</etc/pki/dovecot/certs/2015/new.2015.pem ssl_key =</etc/pki/dovecot/private/new.2015.key ssl_ca = </etc/pki/dovecot/certs/2015/new-intermediate.crt What I should do?

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Sieve and forward
by Il Neofita 28 Sep '15

28 Sep '15

Hi I have already posted to the postfix group, however, I believe that sieve and dovecot should be able to fix this problem. When I receive a message from yahoo and the user forward it to a gmail or yahoo acount this email is considered as spam or rejected. >From yahoo is rejected since it seems that I am try to send spam since the email should be signed with dkim. Is there a way to encpuslated or sign in some way. Thank you

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dovecot, fts, solr5 patch, fuzzy search
by Sergey Urushkin 28 Sep '15

28 Sep '15

Hi! I have a patch and several thoughts about FTS in dovecot. I. SOLR v5.1 and above doesn't allow GET /select queries with Content-Type header set, so, I just removed it from the code: --- dovecot-2.2.18/src/plugins/fts-solr/solr-connection.c 2015-05-13 17:14:45.000000000 +0300 +++ dovecot-2.2.18.patch/src/plugins/fts-solr/solr-connection.c 2015-09-27 19:47:40.363843359 +0300 @@ -432,7 +432,6 @@ solr_connection_select_response, conn); http_client_request_set_port(http_req, conn->http_port); http_client_request_set_ssl(http_req, conn->http_ssl); - http_client_request_add_header(http_req, "Content-Type", "text/xml"); http_client_request_submit(http_req); conn->request_status = 0; After that it works just fine. And it seems it doesn't hurt compatibility with older versions. Tested with 3.1, 3.6.2, 4.10.4, 5.3.1 So, I think this patch should be included. II. Fuzzy search. As I understand dovecot searches the same way despite FUZZY word is given or not. In my case I'd like to have an ability to make lookups like "domain.com usernamepart" (usernamepart - part of localpart). So, I use '<str name="defType">edismax</str><int name="qs">15</int>' inside requestHandler /select in solrconfig.xml. It's very convenient for users. Besides other things, this makes searches "abc@def" and "def@abc" identical to dovecot. But the problem is that sometimes the exact match is necessary. E.g. when using "doveadm expunge". For now I found a workaround - remove fts plugins while using doveadm with -o "`dovecot -n | sed -n 's/"//; s/ *= */=/; /^mail_plugins/s/$"\| fts\(\|_[^ ]\+$\)//gp'`". But I think users should have an ability to decide which search type to use. Here is what I'm suggesting: 1. Implement fts_fuzzy_default option (default - true, current behavior). false should disable fuzzy search by default. 2. Make a way for fts backend to choose which search type to use. For solr it would be an ability to specify: a) "handler" (default=select) and "handler_fuzzy" (default=select or handler's value) (the same as handler by default). After this you have to create second select-like handler with fuzzy capabilities in solrconfig.xml. Example: fts_solr = url=http://127.0.0.1:8983/solr/dovecot/ handler=select handler_fuzzy=select2 This method will use the same index for both search types. b) "url_fuzzy" URL (different solr core or even address/port), like this: fts_solr = url=http://127.0.0.1:8983/solr/dovecot/ url_fuzzy=http://127.0.0.1:8983/solr/dovecot_fuzzy/ This method will allow to have two completely different indexes. And according to RFC 6203 search query generally may be mixed (FUZZY/EXACT). Both options will be useful in different setups. Hope, these thoughts will help. -- Best regards, Sergey Urushkin

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v2.2.19 release candidate released
by Greg Wildman 28 Sep '15

28 Sep '15

Hello, I am trying out 2.2.19.rc1 on a lightly loaded server with no problems so far. The reason I wanted to try 2.2.19.rc1 was to get access to the %{listener} variable in the auth phase so I can modify the SQL password_query according to which unix_listener is being queried. According to the docs, "These variables work only in Dovecot-auth and login_log_format_elements setting". I can confirm that %{listener} works in login_log_format_elements but it does not work if I use it in my SQL auth query. My logic is as follows: I create multiple listeners for different SASL authentications in 10 -master.conf service auth { unix_listener auth-userdb { mode = 0660 user = dovecot group = vmail } unix_listener exim-client { mode = 0660 user = dovecot group = exim } unix_listener xmpp-client { mode = 0660 user = dovecot group = mail } user = $default_internal_user } Now I want to use %{listener} in my SQL password_query in a case statement to auth according to which listener is being used. E.g. CASE '%{listener} ' \ WHEN 'exim-client' THEN ma.SMTPAUTH_allowed = 'YES' \ WHEN 'xmpp-client' THEN ma.XMPP_allowed = 'YES' \ ELSE ma.IMAP_allowed = 'YES' \ END Should the %{listener} variable work in this case ? -- Greg

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modify message with doveadm?
by Frank-Ulrich Sommer 27 Sep '15

27 Sep '15

Hello, I'm using dovecot with getmail and spamassassin. To re-learn false detected mails I created two folders and use an external script that checks the corresponding maildir directories for changes (with inotifywait). The mails found in these directories are passed to sa-learn (to re-learn the correct classification) and then moved back to the inbox or the spam folder. To access the mail I use "doveadm search" (to find all mails in the two folders), "doveadm fetch" (to get the text and pass it to sa-learn) and "doveadm move" (to move the mail to the correct location. This works as desired, except that a mail once marked as spam will forever be marked as such. Spamassassin has the -d option to remove the markup, but I need to replace the original mail with the cleaned version. The only idea I got was deleting that mail and importing the cleaned one, but as I want to implement several "special" folders for further functionality with different IMAP clients I would prefer a "cleaner" solution. What would be the correct/best way to modify the mail body/header/text from an external tool? Kind regards, Frank

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Expunged message reappeared to mailbox
by Alex 26 Sep '15

26 Sep '15

Hi, I'm using dovecot-2.2.18 on fedora22 and receiving the following messages: Sep 26 11:07:52 orion dovecot: imap(dave): Error: Sync failed for mbox file /var/spool/mail/alex: Expunged message reappeared to mailbox (UID 267101 < 267175, seq=2, idx_msgs=0) How do I troubleshoot this? Any idea what could be causing it? I've included my doveconf below. # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.0.7-300.fc22.x86_64 x86_64 Fedora release 22 (Twenty Two) mail_gid = mail mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u mail_plugins = " listescape" mail_privileged_group = mail mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } passdb { driver = pam } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 } process_min_avail = 20 service_count = 0 } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { address = 192.168.1.100 port = 995 } } ssl_ca = </etc/pki/dovecot/certs/ca-bundle.pem ssl_cert = </etc/pki/dovecot/certs/orion-2015.pem ssl_key = </etc/pki/dovecot/certs/orion-2015.key userdb { driver = passwd } userdb { driver = passwd } Thanks, Alex

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