May 2018 - dovecot - dovecot.org

lda / postfix / dovecot -- bounced messages not working
by Scott Ruckh 25 May '18

25 May '18

I saw another thread about this topic, but I did not understand the solution. . . I recently discovered my bounced messages were not getting delivered. Obviously since I was not getting any messages, I thought everything was fine. Anyway, my maillog has entries similar to below for bounced messages: Mar 29 10:48:09 firewall postfix/pipe[9089]: 19565807: to=<myuser(a)my.domain>, relay=dovecot, delay=0.11, delays=0.02/0.01/0/0.08, dsn=5.3.0, status=bounced (command line usage error. Command output: lda: Fatal: Invalid -f parameter: Missing domain ) In the previous thread discussing this issue it mentioned that this was a dovecot error and possibly due to a dovecot 2.3.0 upgrade. I am running dovecot-2.3.0-1.1 on a CentOS 7 server. The solution from the other thread simply stated that the original poster is instead using lmtp instead of lda, or at least that it was I got from the thread. If using lmtp instead of lda is the correct solution, could I get an example of what configuration changes need to be made to make that happen? Otherwise, has anyone else seen this error and know the solution to make it work. My current dovecot configuration for postfix (master.cf) is using the de-facto standard from many web docs: dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/libexec/dovecot/deliver -f ${sender} -d ${recipient} This is the same configuration that was originally setup and has worked for years; until the bounced message problem was recently discovered. If anyone has seen this error and knows the solution, I would appreciate the help. Thank You. Scott

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last login tracking error
by David Mehler 25 May '18

25 May '18

Hello, I'm running dovecot 2.2 and trying to do last login tracking. I am using a MySQL database. When a user logs in I get this in the log: 2018-04-07 16:55:14 imap(user(a)example.com)<54415><BmevY0hpMN5/AAAB>: Error: last_login_dict: Failed to write value for user user(a)example.com: dict-server returned failure: sql dict: commit failed: Field 'name' doesn't have a default value (reply took 0.018 secs (0.000 in dict wait, 0.009 in other ioloops, 0.001 in locks, async-id reply 0.000 secs ago, started on dict-server 0.006 secs ago, took 0.006 secs)) Here's an excerpt from my dovecot-dict-sql.conf.ext file: map { pattern = shared/last-login/$user table = accounts value_field = last_login value_type = uint fields { username = $user } } The username does have a value. Can anyone see what I've got wrong? Thanks. Dave. doveconf -n 2018-04-07 16:55:14 imap(user(a)example.com)<54415><BmevY0hpMN5/AAAB>: Error: last_login_dict: Failed to write value for user user(a)example.com: dict-server returned failure: sql dict: commit failed: Field 'name' doesn't have a default value (reply took 0.018 secs (0.000 in dict wait, 0.009 in other ioloops, 0.001 in locks, async-id reply 0.000 secs ago, started on dict-server 0.006 secs ago, took 0.006 secs)) # 2.3.1 (8e2f634): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.1 (d9bc6dfe) # OS: FreeBSD 11.1-RELEASE-p4 amd64 # Hostname: localhost auth_cache_size = 24 M auth_cache_ttl = 18 hours auth_default_realm = example.com auth_mechanisms = plain login auth_realms = example.com nickandwill.com dict { acl = mysql:/usr/local/etc/dovecot/dovecot-dict-sql.conf.ext lastlogin = mysql:/usr/local/etc/dovecot/dovecot-dict-sql.conf.ext quota = mysql:/usr/local/etc/dovecot/dovecot-dict-sql.conf.ext } first_valid_gid = 999 first_valid_uid = 999 hostname = mail.example.com imap_idle_notify_interval = 10 mins last_valid_gid = 999 last_valid_uid = 999 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lda_original_recipient_header = X-Original-To listen = 127.0.0.1 66.228.47.34 log_path = /var/log/dovecot/dovecot.log log_timestamp = "%Y-%m-%d %H:%M:%S " mail_access_groups = vmail mail_gid = vmail mail_home = /home/vmail/mailboxes/%d/%n mail_location = maildir:~/mail:LAYOUT=fs mail_plugins = acl mail_log notify quota trash virtual welcome zlib mail_privileged_group = vmail mail_server_admin = mailto:postmaster@example.com mail_uid = vmail mailbox_idle_check_interval = 59 secs managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext spamtest spamtestplus virustest editheader imapflags notify imapsieve vnd.dovecot.imapsieve namespace { location = maildir:/home/vmail/public/:CONTROL=~/mail/public:INDEX=~/mail/public mailbox TestFolder { auto = subscribe comment = Public Folder for message sharing } prefix = Public/ separator = / subscriptions = yes type = public } namespace { hidden = no location = maildir:/home/vmail/shared/office/.Maildir:CONTROL=~/.Maildir/control/office:INDEX=~/.Maildir/index/office prefix = office/ separator = / } namespace inbox { inbox = yes location = mailbox Archives { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe autoexpunge = 30 days special_use = \Junk } mailbox Trash { auto = subscribe autoexpunge = 30 days special_use = \Trash } mailbox virtual/All { comment = All my messages special_use = \All } prefix = separator = / type = private } namespace virtual { location = virtual:/usr/local/etc/dovecot/virtual:INDEX=~/virtual:CONTROL=~/virtual prefix = virtual/ separator = / } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile:/usr/local/etc/dovecot/global-acls:cache_secs=300 acl_anyone = allow acl_globals_only = yes acl_shared_dict = proxy::acl fts = lucene fts_autoindex = yes fts_autoindex_max_recent_msgs = 80 fts_index_timeout = 90 fts_lucene = whitespace_chars=@. normalize no_snowball imapsieve_mailbox1_before = file:/home/vmail/sieve/global/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/home/vmail/sieve/global/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * last_login_dict = proxy::lastlogin last_login_key = last-login/%n mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size quota = dict:User quota::proxy::quota quota_exceeded_message = Storage quota for this account has been exceeded, please try again later. quota_grace = 10%% quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO quota_vsizes = true quota_warning = storage=100%% quota-exceeded 100 %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=90%% quota-warning 90 %u quota_warning4 = storage=85%% quota-warning 85 %u quota_warning5 = storage=75%% quota-warning 75 %u sieve = ~/.dovecot.sieve sieve_before = /home/vmail/sieve/before.d sieve_default = /home/vmail/sieve/default.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags +spamtest +spamtestplus +virustest +editheader sieve_global_dir = /home/vmail/sieve sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute +vnd.dovecot.environment sieve_max_redirects = 30 sieve_max_script_size = 1M sieve_pipe_bin_dir = /home/vmail/sieve sieve_plugins = sieve_imapsieve sieve_extprograms sieve_spamtest_max_header = X-Spamd-Result: default: [[:alnum:]]+ \[-?[[:digit:]]+\.[[:digit:]]+ / (-?[[:digit:]]+\.[[:digit:]]+)\] sieve_spamtest_status_header = X-Spamd-Result: default: [[:alnum:]]+ \[(-?[[:digit:]]+\.[[:digit:]]+) / -?[[:digit:]]+\.[[:digit:]]+\] sieve_spamtest_status_type = score sieve_user_log = /home/vmail/sieve/sieve_error.log sieve_virustest_status_header = X-Virus-Scan: Found to be (.+)\. sieve_virustest_status_type = text sieve_virustest_text_value1 = clean sieve_virustest_text_value5 = infected trash = /usr/local/etc/dovecot/trash.conf welcome_script = welcome %u postmaster@%d welcome_wait = yes } postmaster_address = postmaster(a)example.com protocols = imap lmtp sieve sendmail_path = /usr/local/sbin/sendmail service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } user = root } service imap-login { inet_listener imap { address = 127.0.0.1 } inet_listener imaps { address = 66.228.47.34 port = 993 ssl = yes } } service imap-postlogin { executable = script-login /usr/local/etc/dovecot/trackauth.sh user = vmail } service imap { executable = imap } service lmtp { executable = lmtp unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0666 user = postfix } } service managesieve-login { inet_listener sieve { address = 127.0.0.1 port = 4190 } } service quota-status { client_limit = 1 executable = quota-status -p postfix unix_listener /var/spool/postfix/private/dovecot-quota { group = postfix mode = 0660 user = postfix } } service quota-warning { executable = script /usr/local/etc/dovecot/quota-warning.sh unix_listener quota-warning { group = vmail mode = 0660 user = vmail } user = vmail } service welcome { executable = script /usr/local/etc/dovecot/welcome.sh unix_listener welcome { user = vmail } user = vmail } ssl = required ssl_cert = </usr/local/etc/ssl/acme/example.com/fullchain.pem ssl_cipher_list = ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256 ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { info_log_path = /var/log/dovecot/dovecot-lmtp.log log_path = /var/log/dovecot/dovecot-lmtp-errors.log mail_plugins = acl mail_log notify quota trash virtual welcome zlib sieve } protocol lda { mail_plugins = acl mail_log notify quota trash virtual welcome zlib sieve } protocol imap { mail_max_userip_connections = 20 mail_plugins = acl mail_log notify quota trash virtual welcome zlib imap_acl imap_quota imap_sieve imap_zlib last_login fts fts_lucene } protocol sieve { info_log_path = /var/log/dovecot/dovecot-sieve.log log_path = /var/log/dovecot/dovecot-sieve-errors.log }

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Bug: subscriptions file
by Rupert Gallagher 24 May '18

24 May '18

Dovecot does not clear the subscription file from non-existent folders.

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question on setting ulimit on debian
by Sophie Loewenthal 24 May '18

24 May '18

Hi, I’ve been trying to increase the number of open files for the dovecot user on Debian 9 and have so far, failed! I’ve tried this: # cat /etc/security/limits.d/limits_dovecot.conf dovecot soft nofile 2048 dovecot hard nofile 8192 # cat /etc/systemd/system/dovecot.service.d/service.conf LimitNOFILE=8192 But to no avail: # prlimit -p 27208|grep -i nofile NOFILE max number of open files 1024 4096 files Lost me :( Any ideas? Thanks,Sophie.

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Dovecot send duplicated certificates when using ssl_alt_cert
by Jean-Daniel Dupas 24 May '18

24 May '18

Hello, I'm running dovecot 2.3.1 (c5a5c0c82) and trying to experiment with using both RSA and ECDSA certificates. My configuration is as follow: ssl_alt_cert = </path/to/my.rsa.key ssl_alt_key = </path/to/my.rsa.key ssl_cert = </path/to/my.ecdsa.pem ssl_key = </path/to/my.ecdsa.key Both certificates are let's encrypt certificate, so both are using the same intermediate CA. The certificate chain are: for rsa: - my certificate - Let's Encrypt Authority X3 - DST Root CA X3 for ecdsa: - my certificate - Let's Encrypt Authority X3 - DST Root CA X3 My problem is that when connecting, dovecot includes 2 copies of Let's Encrypt Authority X3 in the certificate chain. I think this is a bug. When building the chain, dovecot should ignore duplicated certificates and when opening the connection, it should only send intermediates related to the used certificate (either RSA or ECDSA). (and as a side note, when using dovecot -n, dovecot hides the ssl_key (ssl_key = # hidden, use -P to show it) but not the ssl_alt_key. This is probably a bug too). --------------- openssl s_client -showcerts -host imap.example.com -port 993 -servername imap.example.com CONNECTED(00000005) depth=1 C = US, O = Let's Encrypt, CN = Let's Encrypt Authority X3 verify error:num=20:unable to get local issuer certificate verify return:0 --- Certificate chain 0 s:/CN=imap.example.com i:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 -----BEGIN CERTIFICATE----- MIIHPDCCBiSgAwIBAgISA2e3bP2o1mpdOr9kTDm/R/zuMA0GCSqGSIb3DQEBCwUA … -----END CERTIFICATE----- 1 s:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 i:/O=Digital Signature Trust Co./CN=DST Root CA X3 -----BEGIN CERTIFICATE----- MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/ MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT … -----END CERTIFICATE----- 2 s:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 i:/O=Digital Signature Trust Co./CN=DST Root CA X3 -----BEGIN CERTIFICATE----- MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/ MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT … -----END CERTIFICATE----- --- Server certificate subject=/CN=imap.example.com issuer=/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 --- No client certificate CA names sent --- SSL handshake has read 5140 bytes and written 468 bytes --- New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384 Server public key is 4096 bit Secure Renegotiation IS supported Compression: NONE Expansion: NONE No ALPN negotiated SSL-Session: Protocol : TLSv1.2 Cipher : ECDHE-RSA-AES256-GCM-SHA384 Session-ID: 591240C021A02B399CCB010F37AF7AD83227DC1770C606F73B3EEA3514AF07FB Session-ID-ctx: Master-Key: 7D5A5BFC1B4B8EECF4F41DC084265AF6D32B82130F381B8DDF685B589D54D9BDEBFC20F1DD80E150CD56850C0D062E9E TLS session ticket lifetime hint: 300 (seconds) TLS session ticket: 0000 - 3a 72 98 05 72 af 3d ed-26 a9 e7 2b 68 6b 0a 25 :r..r.=.&..+hk.% … Start Time: 1526482021 Timeout : 300 (sec) Verify return code: 0 (ok) ---

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Re: lazy_expuge + mdbox
by Matt Bryant 24 May '18

24 May '18

To a degree I agree .. given mdbox doesnt delete until purge .. but then would be nice if purge took a dovecot search rather than just ditch everything with refcount=0 ... in that way could say purge everything thats been marked as delete according to a specified criteria. rgds Matt completly unrelated moved mailserver back home and listed on cyren so atm getting bounced by dovecot.fi .. have requested de-listing > Aki Tuomi <mailto:aki.tuomi@dovecot.fi> > 24 May 2018 at 3:35 pm > > I am not sure if lazy expunge makes much sense with mdbox, at least if > you use the same mdbox storage with it. It might make sense with > separate mdbox/sdbox/something for .EXPUNGED. > > Aki > Matt Bryant <mailto:matt@the-bryants.net> > 24 May 2018 at 11:53 am > So moving on from earlier issue now looking at converting mail inbox to > mdbox and keeping lazy_expunge as mdbox also .. but again seeing some > wierdness so questions .... > > 1) When i purge trash folder I seem to get 2 copies of the message in > .EXPUNGED/Trash folder .. however if I set > lazy_expunge_only_last_instance = yes then dont seem to get ANY copy .. > just nothing. > > 2) If I go into Trash and delete a message ... then it does not get > moved .. I assume that a delete in Trash is not actually an expunge on > TB and hence does get caught by the plugin. > > 3) Since mdbox doesnt delte anything anyway until purged would it be > better not to use lazy-expunge but just have a job that moves any > messages in mdbox_deleted: storage to the hidden .EXPUNGED namespace .. > does doveadm move work with mdbox_deleted ??? > > any help appreciated > > rgds > > Matt

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lazy_expuge + mdbox
by Matt Bryant 24 May '18

24 May '18

So moving on from earlier issue now looking at converting mail inbox to mdbox and keeping lazy_expunge as mdbox also .. but again seeing some wierdness so questions .... 1) When i purge trash folder I seem to get 2 copies of the message in .EXPUNGED/Trash folder .. however if I set lazy_expunge_only_last_instance = yes then dont seem to get ANY copy .. just nothing. 2) If I go into Trash and delete a message ... then it does not get moved .. I assume that a delete in Trash is not actually an expunge on TB and hence does get caught by the plugin. 3) Since mdbox doesnt delte anything anyway until purged would it be better not to use lazy-expunge but just have a job that moves any messages in mdbox_deleted: storage to the hidden .EXPUNGED namespace .. does doveadm move work with mdbox_deleted ??? any help appreciated rgds Matt

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Released Pigeonhole v0.4.24 for Dovecot v2.2.36.
by Stephan Bosch 24 May '18

24 May '18

Hello Dovecot users, Here is the Pigeonhole release that goes with the new Dovecot v2.2.36 release. Apart from the changes that were already in the RC, this final release adds one new feature: a plugin for the IMAP FILTER=SIEVE capability. The is a vendor-defined feature that adds the ability to manually invoke Sieve filtering in IMAP. Changelog v0.4.24: + Implement plugin for the a vendor-defined IMAP capability called "FILTER=SIEVE". It adds the ability to manually invoke Sieve filtering in IMAP. More information can be found in doc/plugins/imap_filter_sieve.txt. - Fix assert panics triggered by empty messages that are being forwarded using redirect or vnd.dovecot.report. This does not likely normally occur, but this is seen as a result of certain benign failures in object storage. - Make the length of the subject header for the vacation response configurable and enforce the limit in UTF-8 codepoints rather than bytes. The subject header for a vacation response was statically truncated to 256 bytes, which is too limited for multi-byte UTF-8 characters. - Sieve editheader extension: Fix assertion panic occurring when it is used to manipulate a message header with a very large header field. - Properly abort execution of the sieve_discard script upon error. Before, the LDA Sieve plugin attempted to execute the sieve_discard script when an error occurs. This can lead to the message being lost. - Fix the interaction between quota and the sieve_discard script. When quota was used together with a sieve_discard script, the message delivery did not bounce when the quota was exceeded. The release is available as follows: https://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.24.t… https://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.24.t… Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for more information. Have fun testing this release and don't hesitate to notify me when there are any problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl

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Autofile Junk for all users
by ＠lbutlr 23 May '18

23 May '18

How would I get the rule if header :contains "X-spam-flag" "YES" { fileinto "Junk"; } To apply to all users mail at delivery time?

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Creating users on the fly, for testing?
by Eric Abrahamsen 23 May '18

23 May '18

I'm trying to set up a reproducible test environment for a MUA I'm working on, with accounts and dummy data that can be trashed and restored while testing. I'd like to exercise the IMAP client part of the MUA, and am looking into using a local dovecot instance to do that. I'm trying to make this as minimal-config as possible: ideally the test environment could create a dummy (virtual) user, insert dummy message data, allow the MUA to log in and manipulate the messages, and then destroy both user and message data at the end of the session. I have the sense that I'll be able to get there by shipping a custom config file along with the test library, that sets up a virtual user with a mail_location under /tmp, and then all operations are done with dovecot -c customconfig.conf Then the temp folder is trashed at the end of the session. Is this likely to work? Is anything likely to bite me? Thanks, Eric

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