May 2019 - dovecot - dovecot.org

LDA-based vacation responses bouncing
by micah anderson 14 May '19

14 May '19

I've got dovecot vacataion auto-responses working via sieve, but when the responses are sent, they are sent as if they are to be locally delivered, which causes them to bounce for domains that I am not local for. How can I get dovecot's sieve vacation response to check the domain is local or not? Here is an example of what happens: The LDA notices it needs to send a vacation response: 2019-05-14T10:50:47.827466-07:00 brant dovecot: lda(user(a)example.org)<14817><xL6LL/f/2lzhOQAAh856Uw>: sieve: msgid=<20190514135045.012486@localhost>: sent vacation response to <someone(a)somewhere.org> but that response was sent via the postfix pipe through the dovecot lda transport... because that is local, and the domain it is sending to is not local, it bounces: 2019-05-14T10:50:47.923333-07:00 brant postfix/pipe[14821]: C998381539: to=<someone(a)somewhere.org>, relay=dovecot, delay=0.11, delays=0.04/0.01/0/0.06, dsn=5.1.1, status=bounced (user unknown) Postfix is set to do this: dovecot unix - n n - - pipe flags=DRhu user=mail argv=/usr/bin/spamc --connect-retries=1 -H -d 10.0.1.92 -s 10240000 -t 100 -u ${recipient} -e /usr/lib/dovecot/dovecot-lda -f ${sender} -d ${recipient} require ["fileinto", "vacation"]; vacation :days 2 :subject "Helllo" "Hi"; Here is my doveconf -n: # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.9.0-8-amd64 x86_64 Debian 9.8 auth_worker_max_count = 120 default_client_limit = 6144 default_process_limit = 256 default_vsz_limit = 512 M dict { expire = mysql:/etc/dovecot/dovecot-dict-sql.conf quota = mysql:/etc/dovecot/dovecot-dict-sql.conf } disable_plaintext_auth = no first_valid_gid = 8 first_valid_uid = 8 last_valid_gid = 8 last_valid_uid = 8 listen = * login_greeting = howdy, ready. login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k mail_location = mdbox:~/mdbox mail_plugins = expire quota zlib maildir_very_dirty_syncs = yes namespace { inbox = yes location = prefix = separator = . } namespace { alias_for = hidden = yes inbox = no list = no location = prefix = INBOX. separator = . } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { expire = Trash expire2 = Trash/* expire3 = Spam expire_dict = proxy::expire quota = dict:Your mail quota::proxy::quota quota_rule = *:bytes=100663296 quota_rule2 = Trash:bytes=+20%% quota_rule3 = Spam:bytes=+10%% quota_rule4 = INBOX.Trash:bytes=+20%% quota_rule5 = INBOX.Spam:bytes=+10%% quota_rule6 = INBOX.restored_from_backups:bytes=+500%% sieve = ~/.dovecot.sieve sieve_after = /var/lib/dovecot/sieve/after.sieve sieve_before = /var/lib/dovecot/sieve/default.sieve sieve_dir = ~/sieve zlib_save = gz zlib_save_level = 6 } protocols = " imap pop3" service anvil { unix_listener anvil { group = dovecot mode = 0660 user = root } } service auth { client_limit = 6144 unix_listener auth-userdb { group = mail mode = 0600 user = mail } } service dict { unix_listener dict { group = mail mode = 0600 user = mail } } service imap-login { process_min_avail = 10 service_count = 0 vsz_limit = 512 M } service imap-postlogin { executable = script-login /usr/local/sbin/postlogin_imap } service imap { executable = imap imap-postlogin process_limit = 6144 } service pop3-login { process_min_avail = 10 service_count = 0 vsz_limit = 512 M } service pop3-postlogin { executable = script-login /usr/local/sbin/postlogin_pop } service pop3 { executable = pop3 pop3-postlogin } service stats { unix_listener stats-writer { group = mail mode = 0660 } } ssl_cert = </etc/certs/wildcard/cert.pem ssl_cipher_list = ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } verbose_proctitle = yes verbose_ssl = yes protocol lda { mail_plugins = expire quota trees zlib sieve plugin { quota_exceeded_message = Sorry, your message cannot be delivered to that person because their mailbox is full. If you can contact them another way, you may wish to tell them of this problem. quota_rule7 = INBOX:bytes=+10%% } } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_plugins = expire quota trees zlib imap_quota imap_zlib plugin { quota_exceeded_message = You are over quota. To avoid losing mail, immediately empty your Trash and Sent folders and delete emails with large attachments. } } protocol pop3 { mail_plugins = expire quota trees zlib pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %g } remote 127.0.0.1 { mail_max_userip_connections = 60 } Thanks for any suggestions, micah

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Graceful dovecot reload for LE certificate renewals
by Sidsel Jensen 14 May '19

14 May '19

Hi Dovecot-gurus With the introduction of LE certificates the certificate renewal cycle is a lot faster, unfortunately even a "dovecot reload" cuts the existing connections when doing the cert updates, which is quite frustrating - and yes most clients automatically reconnect but still... Is any work going into implementing a more “graceful reload” for dovecot like the one for nginx where existing connections are preserved with the old cert and new connections get the new cert? Kind Regards, Sidsel Jensen Systems Engineer @ One.com <http://one.com/>

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Graceful dovecot reload for LE certificate renewals
by Sidsel Jensen 14 May '19

14 May '19

Hi Dovecot-gurus With the introduction of LE certificates the certificate renewal cycle is a lot faster, unfortunately even a "dovecot reload" cuts the existing connections when doing the cert updates, which is quite frustrating - and yes most clients automatically reconnect but still... Is any work going into implementing a more “graceful reload” for dovecot like the one for nginx where existing connections are preserved with the old cert and new connections get the new cert? Kind Regards, Sidsel Jensen Systems Engineer @ One.com <http://one.com/>

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weakforced and GeoIP lookups
by Tobi 14 May '19

14 May '19

Hi list hope it's okay to ask weakforced questions here as well, but I could not find a dedicated mailinglist for wforce. I want to enable GeoIP lookups in my wforce daemon. In a first step I installed luarocks and lua-compat53 to install mmdblua module. Then I added newGeoIP2DB("country", "/usr/local/share/GeoIP/GeoLite2-Country.mmdb") local mygeodb = getGeoIP2DB("country") if(mygeodb:lookupCountry(lt.remote) == 'XX') then return -1, "country blocked", "country blocked", { country="XX" } end to wforce.conf and tried to restart wforce but that ends up in a > Fatal Lua error: [string "chunk"]:28: attempt to call global > 'newGeoIP2DB' (a nil value) Any ideas what I could be missing here? Cheers tobi

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Is it possible to (re)direct only 1 imap user to the new server
by Marc Roos 14 May '19

14 May '19

I haven't used dovecot proxy or director. If I have a setup where all my users are connecting to HOSTNAMEOLD, is it possible to have 1 imap user that is connecting to HOSTNAMEOLD directed/forwarded to HOSTNAMENEW? Without changing my dns settings and preferably without creating any new servers. I think I can route one users mail to HOSTNAMENEW with sendmail ldap routing. So the only thing I need to be able to do is have the incoming imap requests on HOSTNAMEOLD been handled by HOSTNAMENEW. HOSTNAMEOLD HOSTNAMENEW +--------------+ +--------------+ | SENDMAIL | | SENDMAIL | | | | | | | | | | | V | | V | |--------------| |--------------| | lmtp | | NS /INBOX | | | | | mbox on | | V | | block device | |--------------| | | | NS /INBOX | |--------------| | mdbox on | | NS /ARCHIVE | | block device | | mdbox on | | | | clustered fs | |--------------| | | | NS /ARCHIVE | +--------------+ | mdbox on | | clustered fs | | | +--------------+

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email notification regression between 2.2 and 2.3
by Thomas Capricelli 14 May '19

14 May '19

Hi, Hello. For the last year, each time i've tried updating dovecot from 2.2.x to 2.3.x, I had to rollback because of the following problem: Users don't "see" new emails arriving in subdirs. To be specific * we mostly use/tested thunderbird client * we use maildrop for delivery * this is using imap, not pop3 * when a new email arrives, thunderbird renders the dir name in blue and appends a "(1)" (or more..). That's what we call 'see' * this happens only on 'subdirs', not the main directory. * the server is a typical linux amd64, using the gentoo distribution More testing shows that * if we switch delivery to dovecot-lda, it works ok. But we can't commit that change, or at least not now/easily. Our users heavily use .mailfilter * if the user is currently viewing the subdir, then email notification is working * better : if the user went on the subdir and then in another dir, it keeps on working. It seems we need to 'open' it at least once for notification to work * "maildir_very_dirty_syncs = no" doesn't help (we had =yes) * "mailbox_list_index = no" doesn't help * i can confirm inotify was detected/used in autoconf when installed (anyway it works well with 2.2) I'm always on freenode (orzel). I'll be in #dovecot the next days at least. greetings, -- Thomas Capricelli

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Userdb userdb_mail=, error Mailbox list driver maildir++: maildir_name not supported by this driver
by Marc Roos 14 May '19

14 May '19

I have this default configuration [0], when use the userdb_mail to point to the mdbox location, the inbox subfolders show differently in a firebird client. So I decided to copy the whole default mail_location into the userdb_mail configuration [2]. But then I get errors [3]. Should I change the namespace configuration here, how? My default namespaces are inbox and 4archives [0] [@ ]# doveconf | grep mail_loc mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u:CONTROL=~/mail/control:INDEX=/var/d ovecot/%u/index:LAYOUT=maildir++ [1] [@dovecot]# cat special-userdb test:x:8267:231:Account with special settings for dovecot:/home/popusers/test:/bin/false:userdb_mail=mdbox:~/mdbox [2] [@dovecot]# cat special-userdb test:x:8267:231:Account with special settings for dovecot:/home/popusers/test:/bin/false:userdb_mail=mdbox:~/mdbox:INBOX=/ var/spool/mail/%u:CONTROL=~/mail/control:INDEX=/var/dovecot/%u/index:LAY OUT=maildir++ [3] May 13 22:41:32 mail04 dovecot: imap-login: Login: user=<test>, method=PLAIN, rip=192.168.10.219, lip=192.168.10.44, mpid=1138, TLS, session=<Gk4K8cqIkdHAqArb> May 13 22:41:32 mail04 dovecot: imap(test): Debug: Loading modules from directory: /usr/lib64/dovecot May 13 22:41:32 mail04 dovecot: imap(test): Debug: Module loaded: /usr/lib64/dovecot/lib15_notify_plugin.so May 13 22:41:32 mail04 dovecot: imap(test): Debug: Module loaded: /usr/lib64/dovecot/lib20_listescape_plugin.so May 13 22:41:32 mail04 dovecot: imap(test): Debug: Added userdb setting: mail=mdbox:~/mdbox:INBOX=/var/spool/mail/test:CONTROL=~/mail/control:IND EX=/var/dovecot/test/index:LAYOUT=maildir++ May 13 22:41:32 mail04 dovecot: imap(test): Debug: Effective uid=8267, gid=231, home=/home/popusers/test May 13 22:41:32 mail04 dovecot: imap(test): Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=mdbox:~/mdbox:INBOX=/var/spool/mail/test:CONTROL=~/mail/control :INDEX=/var/dovecot/test/index:LAYOUT=maildir++ May 13 22:41:32 mail04 dovecot: imap(test): Error: Namespace '': Mailbox list driver maildir++: maildir_name not supported by this driver May 13 22:41:32 mail04 dovecot: imap(test): Namespace '': Mailbox list driver maildir++: maildir_name not supported by this driver in=0 out=378

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doveadm 2.2.36-3.el7.x86_64 mailbox list -u test, does not use symlinked mailboxes
by Marc Roos 14 May '19

14 May '19

Maybe this has been already fixed, but symlinked mailboxes are not shown by [@ dovecot]# doveadm mailbox list -u test | sort Archive Archive/2018 Archive/2019 Archive/2019old Archive/Archive Drafts INBOX INBOX/test1 INBOX/test2 INBOX/test3 Junk Sent test testing-folder-home testing-folder-home/another folder Trash dovecot-2.2.36-3.el7.x86_64 CentOS Linux release 7.6.1810 (Core)

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Sieve scripting
by Lefteris Tsintjelis 14 May '19

14 May '19

I want to monitor a special folder and execute a shell script each time I put an email to it. I would like to automate that way the process of SPAM reporting (SPAMCop). Is that possible with sieve? Lefteris

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Doveadm sync, Error: read(remote) failed: EOF, Error: read(remote) failed: EOF
by Marc Roos 13 May '19

13 May '19

In the manual page this command is used for converting a mailbox doveadm sync -u test mdbox:~/mdbox -x INBOX -x INBOX/* Yet I am getting this error and the mdbox folder is not created. dsync-local(test): (version not received) doveadm(test): Fatal: execvp(mdbox:~/mdbox) failed: No such file or directory [@ dovecot]# doveconf | grep mail_locat mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u:CONTROL=~/mail/control:INDEX=/var/d ovecot/%u/index:LAYOUT=maildir++ Users are not having shell access so something like su test -c '' will also not work. What would be a work-around for this?

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