March 2017 - dovecot - dovecot.org

Re: Email Push to Iphone
by Ricardo Branco 29 Mar '17

29 Mar '17

there is this plugin to use APNS to notify phones, its a faf though as you need a legal OSX Server to generate the signing keys, I never ended up implementing it. https://github.com/st3fan/dovecot-xaps-daemon Aki Tuomi wrote on 29/03/2017 07:29: > > On 29.03.2017 07:24, mca(a)caloro.ch wrote: >> Hello >> >> >> >> Please exist in Dovecot 2.2.13 the E-Mail Push function? >> >> >> >> So that the Email on me Iphone are available at this moment that will be >> transfered, I see or found any other 3part software "Z-push", but it's this >> function are not included on dovecot? >> >> >> >> Thanks and regards >> >> Mauri >> >> > There exists a push notification framework for dovecot, but it does not support iPhone push directly. See https://wiki2.dovecot.org/Plugins/PushNotification > > Aki

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Tip: update dovecot MD5 password from PAM
by Steinar Bang 29 Mar '17

29 Mar '17

This is a PAM module that listens for password changes, and will update the MD5 password for a user, in a file that dovecot can read, when the user's password is changed: https://github.com/steinarb/pam_dovecotmd5pwd Caveat emptor! (Works for me...! :-) )

5 9

The challenge of customizing Dovecot
by Robert Moskowitz 29 Mar '17

29 Mar '17

I have been running Dovecot for sometime, but I have just used someone else efforts on customizing it. Many of these throw out the dovecot/conf.d files for a single dovecot.conf with no explanation on what does what. So tell you a few conf.d files to edit. So over the past few days, I have rolled up my sleeves and did my best to work out how to modify the proper conf.d files. To 'stay true' to the Dovecot maintainer's config organization. The target is Centos7 with Dovecot 2.2.10-7 It was HARD! Besides dovecot.conf, I had to modify 13 conf.d files. Add 3 .ext files in /etc/dovecot, and set up sieve. I will soon have my total instructions available on my server, but to share with you what I have done for Dovecot customization and maybe to get some recommendations on improvements. For the most part, I have used SED to modify the conf files. I use a few env variables: your_domain_tld= your_host_only= your_host_tld=$your_host_only.$your_domain_tld Postfix_Database_Password= What follows are the pieces of my customization, all comments welcomed (this is NOT adequately tested! That is later in the week!): sed -i -e "/^#protocols/s/$/ sieve/w /dev/stdout" /etc/dovecot/dovecot.conf sed -i -e "s/^#protocols/protocols/w /dev/stdout" /etc/dovecot/dovecot.conf sed -i -e "s/#quota = /sqlquota = /w /dev/stdout" /etc/dovecot/dovecot.conf sed -i -e "/^auth_mechanisms/s/$/ login/w /dev/stdout" /etc/dovecot/conf.d/10-auth.conf sed -i -e 's/^#!include auth-sql.conf.ext/!include auth-sql.conf.ext/w /dev/stdout' /etc/dovecot/conf.d/10-auth.conf sed -i -e "0,/#userdb {/ s/#userdb {/userdb {/w /dev/stdout" /etc/dovecot/conf.d/auth-sql.conf.ext sed -i -e "s/# driver = prefetch/ driver = prefetch\n }/w /dev/stdout" /etc/dovecot/conf.d/auth-sql.conf.ext sed -i -e "/^#mail_location/s/$/maildir:\/home\/vmail\/%d\/%n/w /dev/stdout" /etc/dovecot/conf.d/10-mail.conf sed -i -e "s/^#mail_location/mail_location/w /dev/stdout" /etc/dovecot/conf.d/10-mail.conf sed -i -e "s/first_valid_uid = 1000/first_valid_uid = 101/w /dev/stdout" /etc/dovecot/conf.d/10-mail.conf sed -i -e "s/#first_valid_gid = 1/first_valid_gid = 12/w /dev/stdout" /etc/dovecot/conf.d/10-mail.conf sed -i "/unix_listener auth-userdb/ a mode = 0666\n user = vmail\n group = mail" /etc/dovecot/conf.d/10-master.conf sed -i "/#unix_listener \/var\/spool/ a mode = 0666\n user = postfix\n group = postfix\n }" /etc/dovecot/conf.d/10-master.conf sed -i -e "s/#unix_listener \/var\/spool/unix_listener \/var\/spool/w /dev/stdout" /etc/dovecot/conf.d/10-master.conf sed -i "/unix_listener dict/ a mode = 0666\n user = vmail\n group = mail" /etc/dovecot/conf.d/10-master.conf sed -i -e "s/^mode/ mode/w /dev/stdout" /etc/dovecot/conf.d/10-master.conf sed -i -e "s/dovecot\/certs\/dovecot.pem/tls\/certs\/$your_host_tld.crt/w /dev/stdout" /etc/dovecot/conf.d/10-ssl.conf sed -i -e "s/dovecot\/private\/dovecot.pem/tls\/private\/$your_host_tld.key/w /dev/stdout" /etc/dovecot/conf.d/10-ssl.conf sed -i -e "/^#postmaster_address/s/$/ postmaster@$your_domain_tld/w /dev/stdout" /etc/dovecot/conf.d/15-lda.conf sed -i -e "s/^#postmaster_address/postmaster_address/w /dev/stdout" /etc/dovecot/conf.d/15-lda.conf sed -i "/#mail_plugins/ a mail_plugins = quota sieve" /etc/dovecot/conf.d/15-lda.conf sed -i -e "s/^mail_plugins/ mail_plugins/w /dev/stdout" /etc/dovecot/conf.d/15-lda.conf sed -i -e "s/^#lda_mailbox_autocreate = no/lda_mailbox_autocreate = yes/w /dev/stdout" /etc/dovecot/conf.d/15-lda.conf sed -i -e "s/^#lda_mailbox_autosubscribe = no/lda_mailbox_autosubscribe = yes/w /dev/stdout" /etc/dovecot/conf.d/15-lda.conf sed -i "/#mail_plugins / a mail_plugins = quota imap_quota trash" /etc/dovecot/conf.d/20-imap.conf sed -i -e "s/^mail_plugins/ mail_plugins/w /dev/stdout" /etc/dovecot/conf.d/20-imap.conf sed -i "/#imap_client_workarounds/ a imap_client_workarounds = delay-newmail" /etc/dovecot/conf.d/20-imap.conf sed -i "/#mail_plugins/ a mail_plugins = sieve" /etc/dovecot/conf.d/20-lmtp.conf sed -i -e "s/^mail_plugins/ mail_plugins/w /dev/stdout" /etc/dovecot/conf.d/20-lmtp.conf sed -i -e "s/^#lmtp_save_to_detail_mailbox = no/lmtp_save_to_detail_mailbox = yes/w /dev/stdout" /etc/dovecot/conf.d/20-lmtp.conf sed -i -e "s/#service managesieve-login/service managesieve-login/w /dev/stdout" /etc/dovecot/conf.d/20-managesieve.conf sed -i -e "s/#inet_listener sieve {/inet_listener sieve {/w /dev/stdout" /etc/dovecot/conf.d/20-managesieve.conf sed -i -e "s/# port = 4190/ port = 4190\n }/w /dev/stdout" /etc/dovecot/conf.d/20-managesieve.conf sed -i "/#vsz_limit/ a }" /etc/dovecot/conf.d/20-managesieve.conf sed -i "/#mail_plugins/ a mail_plugins = quota" /etc/dovecot/conf.d/20-pop3.conf sed -i -e "s/^mail_plugins/ mail_plugins/w /dev/stdout" /etc/dovecot/conf.d/20-pop3.conf sed -i "/#pop3_client_workarounds/ a pop3_client_workarounds = outlook-no-nuls oe-ns-eoh" /etc/dovecot/conf.d/20-pop3.conf sed -i -e "s/#acl = /acl = /w /dev/stdout" /etc/dovecot/conf.d/90-acl.conf sed -i -e "s/#sieve_before =/sieve_before = \/home\/sieve\/globalfilter.sieve/w /dev/stdout" /etc/dovecot/conf.d/90-sieve.conf cat <<EOF>>/etc/dovecot/conf.d/90-quota.conf || exit 1 plugin { quota = dict:user::proxy::sqlquota trash = /etc/dovecot/dovecot-trash.conf.ext } EOF cat <<EOF>/etc/dovecot/dovecot-trash.conf.ext || exit 1 # Spam mailbox is emptied before Trash 1 Spam # Trash mailbox is emptied before Sent # 2 Trash # If both Sent and "Sent Messages" mailboxes exist, the next oldest message # to be deleted is looked up from both of the mailboxes. # 3 Sent # 3 Sent Messages EOF cat <<EOF>/etc/dovecot/dovecot-sql.conf.ext || exit 1 driver = mysql connect = host=localhost dbname=postfix user=postfix password=$Postfix_Database_Password default_pass_scheme = MD5-CRYPT # following should all be on one line. password_query = SELECT username as user, password, concat('/home/vmail/', maildir) as userdb_home, concat('maildir:/home/vmail/', maildir) as userdb_mail, 101 as userdb_uid, 12 as userdb_gid FROM mailbox WHERE username = '%u' AND active = '1' # following should all be on one line user_query = SELECT concat('/home/vmail/', maildir) as home, concat('maildir:/home/vmail/', maildir) as mail, 101 AS uid, 12 AS gid, CONCAT('*:messages=30000:bytes=', quota) as quota_rule FROM mailbox WHERE username = '%u' AND active = '1' EOF cat <<EOF>/etc/dovecot/dovecot-dict-sql.conf.ext || exit 1 connect = host=localhost dbname=postfix user=postfix password=$Postfix_Database_Password map { pattern = priv/quota/storage table = quota2 username_field = username value_field = bytes } map { pattern = priv/quota/messages table = quota2 username_field = username value_field = messages } EOF mkdir /home/sieve cat <<EOF>/home/sieve/globalfilter.sieve || exit 1 require "fileinto"; if header :contains "X-Spam-Flag" "YES" { fileinto "Spam"; } if header :contains "subject" "***SPAM***" { fileinto "Spam"; } EOF sievec /home/sieve/globalfilter.sieve chown -R vmail:mail /home/sieve

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Re: UID Purge?
by Aki Tuomi 28 Mar '17

28 Mar '17

On 28.03.2017 10:55, Kevin Myers wrote: >> Does this happen if you do this on wire? >> >> telnet localhost 143 >> a LOGIN username password >> s SELECT INBOX >> s STORE 1:1 FLAGS (\Deleted) # or some other message-set >> n NOOP >> l LOGOUT >> >> Aki > Good point. No. And if I just delete it in Thunderbird (my client) it > does as it's told and just marks it deleted. Maybe it's a > Thunderbird/Dovecot thing? you could try looking at https://wiki2.dovecot.org/Debugging/Rawlog to find out. Aki

3 4

UID Purge?
by Kevin 28 Mar '17

28 Mar '17

Hi, I've just migrated to Dovecot from cyrus-imapd, and I notice that when I move emails from one folder to another they appear to be automatically marked deleted (expected) and also purged (not expected). With cyrus, I am used to emails being marked deleted, but still existing until a manual purge (expunge). Is this normal behaviour with Dovecot, and is it configurable? Thanks. Kevin.

2 1

replicator crashing - oom
by Daniel Miller 24 Mar '17

24 Mar '17

I have the following in my log: Mar 21 14:46:59 bubba dovecot: replicator: Panic: data stack: Out of memory when allocating 1073741864 bytes Mar 21 14:46:59 bubba dovecot: replicator: Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0x97c90) [0x7f4638a7cc90] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x97d6e) [0x7f4638a7cd6e] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f4638a14322] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x95e3f) [0x7f4638a7ae3f] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x9608b) [0x7f4638a7b08b] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xb15f8) [0x7f4638a965f8] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x93c42) [0x7f4638a78c42] -> /usr/local/lib/dovecot/libdovecot.so.0(buffer_write+0x74) [0x7f4638a78fb4] -> dovecot/replicator(replicator_queue_push+0x13b) [0x40519b] -> dovecot/replicator() [0x4049c2] -> dovecot/replicator() [0x4040a8] -> dovecot/replicator() [0x404275] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x52) [0x7f4638a907d2] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xe7) [0x7f4638a91d17] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x3c) [0x7f4638a9086c] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f4638a90a28] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f4638a1dfc3] -> dovecot/replicator(main+0x17a) [0x40342a] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f4638640ec5] -> dovecot/replicator() [0x4034c5] Mar 21 14:47:00 bubba dovecot: replicator: Fatal: master: service(replicator): child 15650 killed with signal 6 (core dumped) -- Daniel

4 7

One way dsync replication with dsync -R
by Wolfgang Hennerbichler 24 Mar '17

24 Mar '17

Hi dovecot users, I’ve found the -R parameter for dsync. Does this enable one-way syncing if enabled on the slave in replication_dsync_parameters? The documentation doesn’t mention much what happens if I enable this on the “replciation slave”. Before you ask: Two way synchronisation causes issues in my installation (see the unanswered thread here: http://www.dovecot.org/list/dovecot/2017-March/107431.html) it causes unread, deleted messages to re-appear. I would hope that one-way synchronisation would avoid this, but I’d also like to know if the -R parameter is safe to use. I am also still wondering if anybody has a perfectly working 2-way-synchronised dovecot installation (and I’m interested in your dovecot -n). wogri

2 5

FTS on shared/virtual folders
by Daniel Miller 24 Mar '17

24 Mar '17

A question on how FTS is implemented with regards to shared & virtual mailbox. In particular - with Solr. Does Dovecot treat each shared and virtual mailbox as completely independent - which means Solr would reindex each appearance independently? If that's the case, has any thought been given to potentially identifying such queries and passing them to Solr against the "native" or private mailboxes that are referenced? -- Daniel

1 0

"Connection queue full" error
by Mark Moseley 24 Mar '17

24 Mar '17

Just a quickie: why is "Connection queue full" logged under Info, instead of something like error? Or at least have the word 'error' in it? Seems like a pretty error-ish thing to happen. Anything that causes the connection to fail from the server side should show up in a grep -i for error. I.e. I don't care about clients failing to match up SSL cipher suites; that's fine as Info (SSL errors ironically do have 'error' in them, though I assume that's coming from the ssl libs). But the server dropping connections due to running out of available daemons (and any other "server isn't working right" conditions) is definitely worthy of Error.

1 0

dsync with namespaces
by Tom Sommer 23 Mar '17

23 Mar '17

I have a major dsync headache which I am hoping someone can help me with. I have to migrate mails from a 'namespace/inbox/prefix=INBOX.' server to a 'namespace/inbox/prefix=' server. So I'm trying # dsync -o 'namespace/inbox/prefix=' sync -1 -f -u xx(a)xx.com tcp:1.2.3.4 It works fine for some accounts, however for others many hundreds and sometimes thousands of mails go missing from the destination inbox, and a resync doesn't pick them up. The debug output doesn't recognize these either. If I remove the 'namespace/inbox/prefix=' part, then I get 'Error: Couldn't find namespace for mailbox X' errors. Both source and destination is running 2.2.27 I can't imapsync :S Thanks. -- Tom

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