- dovecot - dovecot.org

lda: Warning: Failed to parse return-path header: Invalid character in localpart
by Christian Authmann 01 Feb '18

01 Feb '18

Hello, Sometimes, when delivering mails, this warning appears in my syslog: > lda(...): Warning: Failed to parse return-path header: Invalid character in localpart dovecot-lda still exits with 0 and the mail is inserted into my inbox. Looking at the mails in question, I determined that the error is caused by a multiline Return-Path header. Here's a testcase: --- snip --- Return-Path: <nowhere(a)example.com> From: "Nowhere" <nowhere(a)example.com> To: redacted(a)example.com Subject: Testcase for lda warnings Date: Wed, 31 Jan 2018 12:00:00 +0000 This is a message body. --- snap --- Copy into a file, with \r\n line endings, then run something like this: > cat testcase.txt | /usr/lib/dovecot/dovecot-lda -e -d '<username>' with a username recognized by your running dovecot installation. The header is 'Return-Path:', \r\n, two spaces, '<...>', \r\n According to rfc2822 folding rules, that should be valid - the Return-Path header allows CFWS at that location. The error message originates in lib-lda/mail-deliver.c in mail_deliver_get_return_address(), while the invalid character message seems to originate from one of several places in lib-lda/mail-deliver.c Ciao, Christian Authmann

2 4

Error in virtual mailbox dovecot 2.3-devel maybe in mailcount
by Jakobus Schürz 01 Feb '18

01 Feb '18

Hi there! I splitted my Mailarchiv to an extra namespace. Because i have some Problems with the Archiv. I can open all Folders from Mailarchiv with dovecot. But i want to have a "all archives" Mailbox to search in all messages in only one virtual mailbox. Trying to open this virtual folder from thunderbird, I get in a big archiv this error in logs from dovecot: Jän 12 10:54:41 aldebaran dovecot[839]: imap(jakob)<11302><9ILYQJFipPlcPAkS>: Error: virtual index /var/mail/virtual/ARCHIV: Broken mailbox_count header Jän 12 10:54:41 aldebaran dovecot[839]: imap(jakob)<11302><9ILYQJFipPlcPAkS>: Error: virtual index /var/mail/virtual/ARCHIV: Broken mailbox_count header Jän 12 10:54:41 aldebaran dovecot[839]: imap(jakob)<11302><9ILYQJFipPlcPAkS>: Panic: Leaked view for index /var/lib/dovecot/db/indexes/archiv/jakob/Archiv/2016/Mailinglisten/stvkr-a/dovecot.index: Opened in index-storage.c:336 Jän 12 10:54:41 aldebaran dovecot[839]: imap(jakob)<11302><9ILYQJFipPlcPAkS>: Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0xc6021) [0x7f391bf02021] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xc60ed) [0x7f391bf020ed] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f391be74481] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xf3942) [0x7f391c2a1942] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(index_storage_mailbox_close+0x72) [0x7f391c278ec2] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_close+0x1a) [0x7f391c1f8c0a] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xa7e0) [0x7f39174637e0] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(virtual_backend_box_open+0x2b) [0x7f391746397b] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(virtual_storage_sync_init+0x1026) [0x7f3917466926] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x4d) [0x7f391c1fb05d] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x37) [0x7f391c1fb117] -> dovecot/imap [jakob 92.60.9.18 select](cmd_select_full+0x171) [0x55759e0911a1] -> dovecot/imap [jakob 92.60.9.18 select](command_exec+0x64) [0x55759e098ca4] -> dovecot/imap [jakob 92.60.9.18 select](+0x1b0b2) [0x55759e0970b2] -> dovecot/imap [jakob 92.60.9.18 select](+0x1b13c) [0x55759e09713c] -> dovecot/imap [jakob 92.60.9.18 select](client_handle_input+0x1a5) [0x55759e097565] -> dovecot/imap [jakob 92.60.9.18 select](client_input+0x82) [0x55759e097be2] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f391bf19c09] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7f391bf1b4a9] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7f391bf19d12] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f391bf19f28] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f391be971e3] -> dovecot/imap [jakob 92.60.9.18 select](main+0x328) [0x55759e089768] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f391babd2b1] -> dovecot/imap [jakob 92.60.9.18 select](_start+0x2a) [0x55759e08994a] Jän 12 10:54:41 aldebaran dovecot[839]: imap(jakob)<11302><9ILYQJFipPlcPAkS>: Fatal: master: service(imap): child 11302 killed with signal 6 (core not dumped) and if i search the virtual mailbox with doveadm i get almost the same error. The "Broken mailbox_count_header" is missing there. The full amount of emails in archiv is about 28000 # ulimit -n 256000 # doveadm search -u jakob mailbox Real/Archiv all doveadm(jakob): Panic: Leaked view for index /var/lib/dovecot/db/indexes/archiv/jakob/Archiv/2016/Diverses/Standard-foren/dovecot.index: Opened in index-storage.c:336 doveadm(jakob): Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0xc6021) [0x7f8259fe6021] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xc6079) [0x7f8259fe6079] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f8259f58481] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xf3942) [0x7f825a385942] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(index_storage_mailbox_close+0x72) [0x7f825a35cec2] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_close+0x1a) [0x7f825a2dcc0a] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xa7e0) [0x7f82559507e0] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(virtual_backend_box_open+0x2b) [0x7f825595097b] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(virtual_storage_sync_init+0x1026) [0x7f8255953926] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x4d) [0x7f825a2df05d] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x37) [0x7f825a2df117] -> doveadm(doveadm_mail_iter_init+0x94) [0x56303334be94] -> doveadm(+0x33715) [0x56303334f715] -> doveadm(+0x29a88) [0x563033345a88] -> doveadm(+0x2a702) [0x563033346702] -> doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x230) [0x563033347570] -> doveadm(doveadm_cmd_run_ver2+0x575) [0x563033357155] -> doveadm(doveadm_cmd_try_run_ver2+0x37) [0x5630333571a7] -> doveadm(main+0x1d2) [0x5630333360c2] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f8259ba12b1] -> doveadm(_start+0x2a) [0x5630333364ca] Abgebrochen Thanks Jakob

1 1

Why does dovecot reject password when authorizing by a certificate?
by yuryb 01 Feb '18

01 Feb '18

We have FreeBSD-server with dovecot installed on it as IMAP-server. My user and password database is a text file with plaintext passwords. Clients connect to imap-server via TLS protocol and plaintext password. All works fine. But I want to configure ability to authorize with a client certificates. I have generated a client certificate and imported it to email-client. Also I have configured dovecot to verify client certificates. But email-client cannot authorize: Password mismatch. Why dovecot reject my password in this case? Please help! My log:dovecot: imap-login: Valid certificate: /C=UA/ST=Kyiv/L=Kyiv/O=Contoso Ltd: user=<>, rip=10.1.1.59, lip=10.1.1.99, TLS handshaking, session=<fp5P5SBkhtMKAQE7> dovecot: imap-login: Valid certificate: /C=UA/ST=Kyiv/O=Contoso Ltd/OU=IT/CN=sysadmin/emailAddress=sysadmin(a)contoso.ua: user=<>, rip=10.1.1.59, lip=10.1.1.99, TLS handshaking, session=<fp5P5SBkhtMKAQE7> dovecot: auth: passwd-file(sysadmin,10.1.1.59,<fp5P5SBkhtMKAQE7>): Password mismatch dovecot: imap-login: Disconnected (auth failed, 1 attempts in 6 secs): user=<sysadmin>, method=EXTERNAL, rip=10.1.1.59, lip=10.1.1.99, TLS, session=<fp5P5SBkhtMKAQE7> My configuration: # 2.2.24 (a82c823): /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 10.2-RELEASE-p20 amd64 ufs auth_debug = yes auth_mechanisms = plain login external auth_ssl_require_client_cert = yes auth_ssl_username_from_cert = yes auth_username_format = %Ln auth_verbose = yes disable_plaintext_auth = no lda_mailbox_autocreate = yes mail_debug = yes mail_gid = 999 mail_location = maildir:/mnt/mail/%n mail_uid = 999 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 { args = /usr/local/etc/dovecot/users driver = passwd-file } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } } service imap-login { inet_listener imaps { ssl = yes } } ssl_ca = </etc/ssl/cacert.pem ssl_cert = </etc/ssl/certs/dovecot.pem ssl_dh_parameters_length = 2048 ssl_key = </etc/ssl/private/dovecot.pem ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 !TLSv1 ssl_require_crl = no ssl_verify_client_cert = yes userdb { args = /usr/local/etc/dovecot/users driver = passwd-file } verbose_ssl = yes

2 4

test-net.c failure
by Rupert Gallagher 31 Jan '18

31 Jan '18

test-net.c:79: Assert failed: strcmp(net_ip2addr(&ip), "::5") == 0 test-net.c:83: Assert failed: strcmp(net_ip2addr(&ip), "::5") == 0 net_ip2addr() ........................................................ : FAILED Hello, Is it possible to disable DOVECOT_IPV6? We do not use IPv6 (and hope we shall never do on e-mails).

3 3

2.3.0 on 10.13.3 (macos): all testing errors
by Rupert Gallagher 30 Jan '18

30 Jan '18

Enclosed.

1 0

send specific NDR message for users in certain OU
by lists 30 Jan '18

30 Jan '18

Hi, The question can perhaps be made more generic like this: Can dovecot generate a *specific* NDR (or an autoreply) for accounts that meet a specific criterium, such as: - user account was found under OU=to-delete,CN=company... contrary to the regular location CN=Users,CN=company... We would like to move to-be-deleted users to this container, before actually deleting them. That gives us an easy way to revert, if the deletion turns out to be erroneous. We could do that with via a sieve config for those accounts, but if dovecot could send a "delivery failure"-type specific for those accounts (with instructions who to contact to revert the situation) it would be very easy: only move the user to the specific OU, and have the system do the rest. Can this be done? (dovecot 2.1.17 on wheezy, yes we know we should upgrade, and we also will, but it runs rock solid...) MJ

2 2

2 panics, 1 segmentation fault in dovecot 2.3.0 (fts)
by Infoomatic 30 Jan '18

30 Jan '18

Hi, While testing our migration to dovecot 2.3.0, we encountered 2 panics, 1 segmentation fault while we wanted to rebuild the solr indizes. Problem [1] was encountered while rebuilding the indizes, and now I don't know how many mails/documents are indexed or where it got stuck. [2] and [3] encountered while just playing around, since I did not know of "tokenize" and did not find a lot of information about it. This is a ubuntu 16.04 machine, dovecot 2.3.0 compiled from source ( + the patch for the recent zlib problem). "doveadm index" runs on a ~ 4GB mdbox-zipped-mailbox for about 3-4 minutes before aborting with the message above, beforehand I did a "/opt/dovecot/bin/doveadm fts rescan -A". When I repeat "doveadm index" it aborts after about 4 seconds, after a "/opt/dovecot/bin/doveadm fts rescan -A" it runs again for 3-4 minutes. Apache tika logs, but those are probably not related to the problem, however, the devs might want investigate the last line: WARN Parse exception Expected ';', got "," determining content disposition javax.mail.internet.ParseException: Expected ';', got "," and org.apache.tika.exception.ZeroByteFileException: InputStream must have > 0 bytes I would be happy if you could have a look at this, please, and of course just tell me what further information you need. Thanks, infoomatic [1] /opt/dovecot/bin/doveadm index -u user1 '*' doveadm(user1): Panic: file unichar.c: line 160 (uni_ucs4_to_utf8_c): assertion failed: (uni_is_valid_ucs4(chr)) doveadm(user1): Error: Raw backtrace: /opt/dovecot/lib/dovecot/libdovecot.so.0(+0xc5eea) [0x7ff27755beea] -> /opt/dovecot/lib/dovecot/libdovecot.so.0(+0xc5f59) [0x7ff27755bf59] -> /opt/dovecot/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7ff2774ce5e1] -> /opt/dovecot/lib/dovecot/libdovecot.so.0(uni_ucs4_to_utf8_c+0xa0) [0x7ff277593300] -> /opt/dovecot/lib/dovecot/libdovecot.so.0(+0xa74f9) [0x7ff27753d4f9] -> /opt/dovecot/lib/dovecot/libdovecot.so.0(mail_html2text_more+0xc5) [0x7ff27753d705] -> /opt/dovecot/lib/dovecot/lib20_fts_plugin.so(+0xcf5c) [0x7ff276460f5c] -> /opt/dovecot/lib/dovecot/lib20_fts_plugin.so(fts_parser_more+0x27) [0x7ff276460c37] -> /opt/dovecot/lib/dovecot/lib20_fts_plugin.so(fts_build_mail+0x511) [0x7ff27645eb51] -> /opt/dovecot/lib/dovecot/lib20_fts_plugin.so(+0x110a6) [0x7ff2764650a6] -> /opt/dovecot/lib/dovecot/libdovecot-storage.so.0(mail_precache+0x2e) [0x7ff27784618e] -> /opt/dovecot/bin/doveadm(+0x2f697) [0x55dd2f912697] -> /opt/dovecot/bin/doveadm(+0x29827) [0x55dd2f90c827] -> /opt/dovecot/bin/doveadm(+0x2a4bb) [0x55dd2f90d4bb] -> /opt/dovecot/bin/doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x21d) [0x55dd2f90e2cd] -> /opt/dovecot/bin/doveadm(doveadm_cmd_run_ver2+0x575) [0x55dd2f91deb5] -> /opt/dovecot/bin/doveadm(doveadm_cmd_try_run_ver2+0x37) [0x55dd2f91df07] -> /opt/dovecot/bin/doveadm(main+0x1d2) [0x55dd2f8fd032] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7ff2770ec830] -> /opt/dovecot/bin/doveadm(_start+0x29) [0x55dd2f8fd439] Aborted (core dumped) [2] This was just about my curiosity since I haven't used "tokenize" and did not find too much info about it: /opt/dovecot/bin/doveadm fts tokenize -A '*' Panic: file doveadm-print.c: line 142: unreached Error: Raw backtrace: /opt/dovecot/lib/dovecot/libdovecot.so.0(+0xc5eea) [0x7f38ac5c2eea] -> /opt/dovecot/lib/dovecot/libdovecot.so.0(+0xc5f59) [0x7f38ac5c2f59] -> /opt/dovecot/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f38ac5355e1] -> /opt/dovecot/bin/doveadm(+0x3b3d3) [0x55c728e8b3d3] -> /opt/dovecot/bin/doveadm(+0x2a63a) [0x55c728e7a63a] -> /opt/dovecot/bin/doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x21d) [0x55c728e7b2cd] -> /opt/dovecot/bin/doveadm(doveadm_cmd_run_ver2+0x575) [0x55c728e8aeb5] -> /opt/dovecot/bin/doveadm(doveadm_cmd_try_run_ver2+0x37) [0x55c728e8af07] -> /opt/dovecot/bin/doveadm(main+0x1d2) [0x55c728e6a032] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f38ac153830] -> /opt/dovecot/bin/doveadm(_start+0x29) [0x55c728e6a439] Aborted (core dumped) [3] /opt/dovecot/bin/doveadm fts tokenize -u user1 "@" Segmentation fault (core dumped)

2 2

Dovecot 2.2.33.2 doveadm log reopen don't work
by Айхэд 30 Jan '18

30 Jan '18

dovecot -n # 2.2.33.2 (d6601f4ec): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: FreeBSD 11.1-RELEASE-p1 amd64 zfs from logrotate.conf: /var/log/dovecot/dovecot.log { rotate 180 missingok nomail noolddir compress create 0600 nobody nobody postrotate # /usr/local/bin/doveadm log reopen /usr/sbin/service dovecot reload endscript } After upgrade to 2.2.33.2 (prev version was 2.2.29.1) there are only messages from sieve in /var/log/dovecot/dovecot.log like this: Jan 29 00:00:12 lda(***): Info: sieve: msgid=<20180128210012.3A9A11138B8E@***>: stored mail into mailbox 'INBOX.' (INBOX) Messages from pop3, pop3-login, imap, imap-login are absent. If i replace /usr/local/bin/doveadm log reopen with /usr/sbin/service dovecot reload all works fine. Before upgrade all worked fine.

1 0

Change destination of dsync
by Sergio Belkin 29 Jan '18

29 Jan '18

Hi, I have the following command for retrieving mails from another IMAP mail server dsync -D -v backup -R -u jon.doe imapc: I't ok and works, but I'd want to copy messages outside of /var directory, is there a way to do that? Thanks in advance! -- -- Sergio Belkin LPIC-2 Certified - http://www.lpi.org

2 1

problem with lda
by Infoomatic 27 Jan '18

27 Jan '18

Hello, I am currently testing the upgrade from our dovecot v2.2.23 to 2.3.0. I have a strange problem with lda. We use bounce mails for internal users if they try to send virus/spammails. The exact same config works with 2.2.23, but not with 2.3.0. The relevant postfix/master.cf part: dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/opt/dovecot/libexec/dovecot/deliver -d ${recipient} -f ${sender} On the same machine, with 2.2.23 I get a bounce mail when trying to send a virus, with the subject "VIRUS in message apparently from you (Eicar-Test-Signature)", to both the users inbox as well as to the mailbox of virusalert(a)ourdomain.internal With 2.3.0, in the logs I get an error: relay=dovecot, delay=0.01, delays=0/0/0/0, dsn=5.3.0, status=bounced (command line usage error. Command output: lda: Fatal: Invalid -f parameter: Missing domain and the alert message is only sent to virusalert(a)ourdomain.internal, but not to the user who tried to send the mail. The relevant part of our dovecot.conf: protocol lda { mail_plugins = " quota zlib sieve acl mail_log notify" postmaster_address = postmaster(a)ourdomain.internal } Does anyone know how to solve this problem? Or is there a workaround via postfix/amavis/spamassassin? Any hints are highly appreciated, thanks! Regards, infoomatic

3 6