June 2016 - dovecot - dovecot.org

Mail dates
by ＠lbutlr 18 Jun '16

18 Jun '16

Where exactly does dovecot get the date that it reports via IMAP? I have a lot of messages that were restored from an archive and so all have the same date, despite being over the span over several years. I tried setting the timestamps of the files to the date in the Received header, but that didn’t seem to make any difference to what my IMAP clients see. Do I have to rename the files to the right epoch seconds in order for dovecot to show the right dates to the IMAP clients? … It seems I’ve been here before, but I don’t remember the solution … -- 'What is this thing, anyway?' said the Dean, inspecting the implement in his hands. 'It's called a shovel', said the Senior Wrangler. 'I've seen the gardeners use them. You stick the sharp end in the ground. Then it gets a bit technical.' --Reaper Man

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Advice needed: SMTP/LMTP or IMAP for internal message delivery
by KT Walrus 17 Jun '16

17 Jun '16

I’ve implemented “next day” delivery this week by taking messages submitted through Postfix, queuing the messages in a MySQL database, and sending them out for delivery through another Postfix instance/Dovecot LMTP proxy with final delivery using the destination mail servers LMTP service. Delivery is sent to a “next day” mail server which is sync’d to the recipient’s mail server using “doveadm sync -A tcp:next-day-mail:12345” on each mail server in the early morning. This all appears to be working well. I do have a need to deliver these messages into specific mail folders in the recipient’s mailbox and I was planning on using global Sieve scripts running on the “next day” mail server to place the messages in the proper folder (not all messages are delivered to the INBOX folder). I am using a PHP script to move the messages from Postfix to the MySQL database and then later sending them via SMTP to the internal Postfix instance for delivery to the “next day” mail server. I started investing how to code the Sieve scripts today and it occurred to me that I could greatly simplify message delivery by using IMAP to deliver the messages to the “next day” mail server. The PHP script would be able to deliver the exact message that should be stored to the proper folders setting the \Seen flags appropriately. My backend “next day” mail server already supports Master password login so I figure the PHP script should be able to login via IMAP to access the folders in the recipient mailboxes. Also, the PHP script could do other mailbox maintenance tasks when it connects to the user’s mailbox such as purge folders by age, message count, etc. The PHP script could also retrieve info about the current state of the user’s mailbox folders (like the date of the oldest unread message, how many messages have been read in the last week or so, etc) and store this data in the MySQL DB. I’m looking for any advice on whether to scrap the current plan of deploying internal Postfix SMTP/Dovecot LMTP proxy/Dovecot LMTP/Sieve script for “next day” mail delivery and just write PHP script to access Dovecot IMAP (direct to the “next day” mail server or to the user’s mail server for “immediate” delivery). This would allow me to drop using Dovecot LMTP at all. Postfix SMTP would only be configured to invoke a PHP script to deliver messages to the database (which is already implemented). Postfix would still use Dovecot IMAP authentication, but only Dovecot IMAP service would need to be “highly available”. Any opinions? Should I dump LMTP? Kevin

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Migrate email account from Dovecot to Dovecot servers
by Marco Usai 17 Jun '16

17 Jun '16

Hello, 1) I needto migrate some mbox imap email accounts from a shared webhosting provider toanother one. 2) Bothservers seem to use Devecot, as a telnet command on port 143 shows an identicalresponse:* OK[CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE NAMESPACESTARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready. 3) I don'tknow Dovecot version because I don't have access to "dovecot --version"command. 4) I can'tuse "doveadm-sync" because the command is not available on my sharedhosting account. 5) I preferto leave imapsync perl script as the last option because I want to preserve theUID. So, I needto know what migration procedure can be adopted: if I copythe /home/user/mail/ directory containing all email account from the sourceserver to the destination server, can I expect to see all accounts working withall the emails transferred ? Should I firstcreate from cPanel all the email account with identical names and password onthe destination server ? Anysuggestion will be much appreciated. Thanks in advance!

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Double variable expansion / multiple password mechanisms
by Leon Kyneur 17 Jun '16

17 Jun '16

Hi, Trying to solve the problem of supporting multiple auth mechanisms + proxy and really don't want to store user passwords in plain test and fine to do master user to backend. I had the crazy thought I could do something like the following: For each user Store supported password schemes as LDAP attributes: userPasswordCRAM-MD5: {CRAM-MD5}xxx userPasswordDIGEST-MD5: {DIGEST-MD5}xxxx userPasswordSCRAM: {SCRAM-SHA-1}xxxx userPasswordNTLM: {NTLM}xxxx then: =password=%{ldap:userPassword%m} <- Though this doesn't work.. just wondering if it could possibly work or if I should give up on this crazy idea :) Thanks Leon

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Multiple ACTIVE Sieve scripts
by Aaron Müller 17 Jun '16

17 Jun '16

Hi! Is there a reason the email filter sieve can only activate one single script? > list "mailinglists.sieve" "spam.sieve" ACTIVE > activate mailinglists.sieve > list "mailinglists.sieve" ACTIVE "spam.sieve" > I can't see the logic here ... I am doing something wrong? Aaron

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Mailbox location
by Doug Hardie 17 Jun '16

17 Jun '16

I am running a small server with a fixed number of users. Postfix is using dovecot lda so that I can run pigeonhole. I have setup a user file with the ids and passwords and everything authenticates properly. Postfix uses that also. However, mail is consistently delivered to user@domain. How do I tell it to deliver to just user? I have tried setting a variety of different things like: 10-mail.conf:mail_location = maildir:/var/mail/home_mail/%u userdb { driver = static args = uid=2222 gid=2222 home=/var/mail/home_mail/%u } and a few other things. None of them affected the mailbox location. Fortunately, this is a test system as I probably have mucked up the config files by now. — Doug

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sieve-extprogram: How to hand over a variable or pipe a mail so a shell script?
by M. Koehler 17 Jun '16

17 Jun '16

Hi, I´m just playing around with sieve-extprogram but it didn´t works like I think. I want a. execute a shell script that get the subject as parameter my try: require ["fileinto","variables","envelope","vnd.dovecot.execute"]; if header :contains "Subject" "123test" { execute :input "${1}" "exec-test"; keep; } and require ["fileinto","variables","envelope","vnd.dovecot.execute"]; if header :contains "Subject" "123test" { execute "exec-test" "${1}"; keep; } The shell script will create a file with $1 as text. But I didn´t get any output - the created file is empty b. later the complete mail should piped to the shell script require ["fileinto","variables","envelope","vnd.dovecot.execute"]; if header :contains "Subject" "123test" { execute :pipe "exec-test"; keep; } This should (as http://hg.rename-it.nl/dovecot-2.2-pigeonhole/raw-file/tip/doc/rfc/spec-bos… described) hand over the complete mail to the script But I don´t know how I handle the complete mail with a shell script? I think the mail will not hand over as a parameter to the shell script, right? But how should I store the mail into a file or should I pipe it through a sed command line (and so one) into a shell script? Hope someone could bring some lights into my darkness :) Best regards, Michael

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quota rules for mail users
by mkawada＠redhat.com 16 Jun '16

16 Jun '16

Dear All, Is it possible to make quota rules under $HOME/Maildir/* mailboxes with a specific command such as 'edquota' when the first email arrives at the $HOME/Maildir/{new,cur,tmp} of a user. In the below example, the <UserB> is the one who gets an email for the first time. edquota -p <UserA> <UserB> ---man edquot--- -p, --prototype=protoname Duplicate the quotas of the prototypical user specified for each user specified. This is the normal mechanism used to initialize quotas for groups of users. --- To configure quotas in postfix/dovecot environment, it seems that you need to use dovecot-lda plugin, and then my exact question is as follows: Is it possible to automatically run any commands or scripts in order to set a quota rule to $HOME/Maildir/* mailboxes when users receive an email for the first time? I just found the post-login service allows you to execute scripts after authentication in the following URL, but I have not found the exact way to make it. http://www.dovecot.org/list/dovecot/2009-November/044279.html Any comments/suggestions would be greatly appreciated. -- Masaharu Kawada

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Re: Multiple ACTIVE Sieve scripts
by Larry Rosenman 15 Jun '16

15 Jun '16

I have a "master" script that includes all my other snippets. And each file can have MULTIPLE scripts. Let me know if you need more info. Also, mail to you (Aaron) BOUNCES: Delivery to the following recipient failed permanently: mail(a)aaron-mueller.de Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the server for the recipient domainaaron-mueller.de by mail.aaron-mueller.de. [37.120.190.162]. The error that the other server returned was: 554 5.7.1 <mail(a)aaron-mueller.de>: Relay access denied On Wed, Jun 15, 2016 at 12:43 PM, Larry Rosenman <larryrtx(a)gmail.com> wrote: > I have a "master" script that includes all my other snippets. And > each file can have MULTIPLE scripts. Let me know if you need more > info. > > > On 6/13/16, Aaron Müller <mail(a)aaron-mueller.de> wrote: > > Hi! > > > > Is there a reason the email filter sieve can only activate one single > > script? > > > >> list > > "mailinglists.sieve" > > "spam.sieve" ACTIVE > >> activate mailinglists.sieve > >> list > > "mailinglists.sieve" ACTIVE > > "spam.sieve" > >> > > > > I can't see the logic here ... I am doing something wrong? > > Aaron > > > > > -- > Larry Rosenman http://www.lerctr.org/~ler > Phone: +1 214-642-9640 (c) E-Mail: larryrtx(a)gmail.com > US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281 > -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: larryrtx(a)gmail.com US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281

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sieve_extprograms: how to filter original message twice?
by N0T3P4D 15 Jun '16

15 Jun '16

Hi, I use dovecot and sieve_extprograms to encrypt all incoming messages with the help of a Python script. Now, I want to process the _original_ message a second time. However, as expected, the second filter is applied to the already filtered message. For reference, here's a copy of the sieve script in question: if address :matches "To" "X(a)Y.Z" { fileinto "INBOX"; filter "gpgit.py" ["X(a)Y.Z", "--encrypt"]; fileinto "encrypted"; filter "gpgit.py" ["X(a)Y.Z", "--wrap"]; # Should be applied to the original message but uses the result of the first filter command fileinto "wrapped"; stop; } Does anyone have an idea how to modify the script to get the intended result? Please cc me, as I'm not subscribed. Thanks for your help Jeremias

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