- dovecot - dovecot.org

Restrict IMAP login, but allow Postfix SASL
by lutz.niederer＠gmx.net 03 Jun '22

03 Jun '22

Hi, we have a very simple user-/passdb (like passwd) to authenticate virtual IMAP users. We also use this for Postfix authentication. Nothing special. But, we need to exclude some of the users from IMAP login. This means, some users should be allowed to send mail via Postfix (submission) and therefore authenticate via SASL against dovecot successfully, but they should not be allowed to login to their IMAP mail box. How could this be done? Thanks! -lutzn

9 9

Building dovecot-core
by Dmitriy Fitisov 03 Jun '22

03 Jun '22

Hi all, do we have any info on building dovecot-core? INSTALL.md suggests usual way: ./configure … Needless to say, there is no .configure in root dir. I think, instructions need to be updated to correct this. Thank you. Dmitriy

4 4

What is the state of SMTPUTF8 support?
by Sylvhem 02 Jun '22

02 Jun '22

Hi! It’s been some time since I last saw a mention of SMTPUTF8 here. Last time I heard about it, it was worked on. Does anybody have news about that? -- Sylvhem

5 8

doveadm-deduplicate deletes non-duplicates
by Ryan Kavanagh 31 May '22

31 May '22

Hi, I've been trying to use `doveadm deduplicate` to deduplicate mailboxes. According to doveadm-deduplicate(1), "deduplication will be done by message GUIDs". However, deduplication deletes messages with distinct message GUIDs, i.e., it deletes messages that are not duplicates. Is this a case of user error, do I have some form of corruption going on, or am I running into a bug? In case it helps, I'm including: 1) the list of GUIDs for messages in my INBOX before a deduplication run (as documented in doveadm-deduplicate(1)), 2) the output of `doveadm -D deduplicate -u rak mailbox INBOX`, 3) the list of GUIDs after deduplication, 4) a diff of (1) and (3), 5) the output of doveconf -n. Thanks, Ryan $ doveadm -f table fetch -u rak 'guid uid' mailbox INBOX | sort 0b3bee1414118f6282db0000226807b0 7100 0b4b681c18168f6220940000226807b0 7104 0b83ac1d79cf2962eb3a0100226807b0 6153 0b97791e83108f6282db0000226807b0 7095 1614451513.M180742P77875.hades.rak.ac,S=3516,W=3600 22 1614451513.M180779P77875.hades.rak.ac,S=5252,W=5370 52 1614452870.M315137P88362.hades.rak.ac,S=5516,W=5623 68 1614452870.M315152P88362.hades.rak.ac,S=5977,W=6085 69 23a5a0179e108f6282db0000226807b0 7097 33318e0686108f6282db0000226807b0 7096 3351581c9c0e8f624cd50000226807b0 7091 3359032360108f6282db0000226807b0 7093 3b3927352be48c62b65b0000226807b0 7072 3ba2252814118f62a2540100226807b0 7101 4154be0c2fc77761c2550000226807b0 4050 5b3a7327d73b866299cd0000226807b0 7013 638e073255235d62a5280100226807b0 6660 63b6422e14118f6282db0000226807b0 7102 8b9b942909118f6282db0000226807b0 7099 8bc95639a6168f62ad4e0000226807b0 7105 a316ee28980d8f627c460000226807b0 7090 ab802c1e37ac3d6214680100226807b0 6343 b3d12f21cd108f6282db0000226807b0 7098 bb89431b6e728d6230920000226807b0 7076 c386310f062adb61d1980000226807b0 5306 cb56992484478d62f3090100226807b0 7074 cb79bf3503128f6275220100226807b0 7103 eb2818367d108f62484b0100a558518d 7094 eb709020e70f8f62292e0000226807b0 7092 f19a8c06409a7d61271c0000226807b0 4128 f338ad1ff65e8562ff390100226807b0 7007 f9cd03363c457c613a0e0000226807b0 4107 guid uid $ doveadm -D deduplicate -u rak mailbox INBOX Debug: Loading modules from directory: /usr/local/lib/dovecot/doveadm Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) Debug: Module loaded: /usr/local/lib/dovecot/doveadm/lib10_doveadm_sieve_plugin.so Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_flatcurve_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) May 31 12:50:35 Debug: Loading modules from directory: /usr/local/lib/dovecot May 31 12:50:35 Debug: Module loaded: /usr/local/lib/dovecot/lib15_notify_plugin.so May 31 12:50:35 Debug: Module loaded: /usr/local/lib/dovecot/lib20_replication_plugin.so May 31 12:50:35 Debug: Module loaded: /usr/local/lib/dovecot/lib20_virtual_plugin.so May 31 12:50:35 Debug: Loading modules from directory: /usr/local/lib/dovecot/doveadm May 31 12:50:35 Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) May 31 12:50:35 Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) May 31 12:50:35 Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) May 31 12:50:35 Debug: Skipping module doveadm_fts_flatcurve_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) May 31 12:50:35 Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: Cannot load specified object (this is usually intentional, so just ignore this message) May 31 12:50:35 doveadm(rak)<74469><>: Debug: auth-master: userdb lookup(rak): Started userdb lookup May 31 12:50:35 doveadm(rak)<74469><>: Debug: auth-master: conn unix:/var/dovecot/auth-userdb: Connecting May 31 12:50:35 doveadm(rak)<74469><>: Debug: auth-master: conn unix:/var/dovecot/auth-userdb (pid=6157,uid=0): Client connected (fd=9) May 31 12:50:35 doveadm(rak)<74469><>: Debug: auth-master: userdb lookup(rak): auth USER input: rak uid=1002 gid=1002 home=/home/vmail/rak /etc/mail/auth May 31 12:50:35 doveadm(rak)<74469><>: Debug: auth-master: userdb lookup(rak): Finished userdb lookup (username=rak uid=1002 gid=1002 home=/home/vmail/rak /etc/mail/auth) May 31 12:50:35 doveadm(rak)<74469><>: Debug: Unknown userdb setting: plugin//etc/mail/auth=yes May 31 12:50:35 doveadm(rak)<74469><PLteAltHlmLlIgEAImgHsA>: Debug: Effective uid=1002, gid=1002, home=/home/vmail/rak May 31 12:50:35 doveadm(rak)<74469><PLteAltHlmLlIgEAImgHsA>: Debug: open(/proc/self/stat) failed: No such file or directory May 31 12:50:35 doveadm(rak)<74469><PLteAltHlmLlIgEAImgHsA>: Debug: open(/proc/self/io) failed: No such file or directory May 31 12:50:35 doveadm(rak)<74469><PLteAltHlmLlIgEAImgHsA>: Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:INDEX=~/indexes May 31 12:50:35 doveadm(rak)<74469><PLteAltHlmLlIgEAImgHsA>: Debug: fs: root=/home/vmail/rak/mail, index=/home/vmail/rak/indexes, indexpvt=, control=, inbox=/home/vmail/rak/mail, alt= May 31 12:50:35 doveadm(rak)<74469><PLteAltHlmLlIgEAImgHsA>: Debug: Namespace virtual: type=private, prefix=Virtual/, sep=/, inbox=no, hidden=no, list=yes, subscriptions=yes location=virtual:/etc/dovecot/virtual:LAYOUT=fs:INDEX=~/virtual May 31 12:50:35 doveadm(rak)<74469><PLteAltHlmLlIgEAImgHsA>: Debug: fs: root=/etc/dovecot/virtual, index=/home/vmail/rak/virtual, indexpvt=, control=, inbox=, alt= May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: Mailbox opened May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7007: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7013: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7090: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7091: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7094: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7096: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7099: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7101: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7103: Expunge requested May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7007: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7013: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7090: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7091: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7094: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7096: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7099: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7101: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: UID 7103: Mail expunged May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: Purging (new file_seq=1654009655): Too many deleted records (9/23) May 31 12:50:35 doveadm(rak): Debug: Mailbox INBOX: Purging finished, file_seq changed 1654009654 -> 1654009655, size=75108 -> 53936, max_uid=7105 May 31 12:50:35 doveadm(rak): Debug: User session is finished May 31 12:50:35 doveadm(74469): Debug: auth-master: conn unix:/var/dovecot/auth-userdb (pid=6157,uid=0): Disconnected: Connection closed (fd=9) $ doveadm -f table fetch -u rak 'guid uid' mailbox INBOX | sort 0b3bee1414118f6282db0000226807b0 7100 0b4b681c18168f6220940000226807b0 7104 0b83ac1d79cf2962eb3a0100226807b0 6153 0b97791e83108f6282db0000226807b0 7095 1614451513.M180742P77875.hades.rak.ac,S=3516,W=3600 22 1614451513.M180779P77875.hades.rak.ac,S=5252,W=5370 52 1614452870.M315137P88362.hades.rak.ac,S=5516,W=5623 68 1614452870.M315152P88362.hades.rak.ac,S=5977,W=6085 69 23a5a0179e108f6282db0000226807b0 7097 3359032360108f6282db0000226807b0 7093 3b3927352be48c62b65b0000226807b0 7072 4154be0c2fc77761c2550000226807b0 4050 638e073255235d62a5280100226807b0 6660 63b6422e14118f6282db0000226807b0 7102 8bc95639a6168f62ad4e0000226807b0 7105 ab802c1e37ac3d6214680100226807b0 6343 b3d12f21cd108f6282db0000226807b0 7098 bb89431b6e728d6230920000226807b0 7076 c386310f062adb61d1980000226807b0 5306 cb56992484478d62f3090100226807b0 7074 eb709020e70f8f62292e0000226807b0 7092 f19a8c06409a7d61271c0000226807b0 4128 f9cd03363c457c613a0e0000226807b0 4107 guid uid $ diff -u /tmp/guid-prededuplicate.txt /tmp/guid-postdeduplicate.txt --- /tmp/guid-prededuplicate.txt Tue May 31 12:50:24 2022 +++ /tmp/guid-postdeduplicate.txt Tue May 31 12:51:00 2022 @@ -7,27 +7,18 @@ 1614452870.M315137P88362.hades.rak.ac,S=5516,W=5623 68 1614452870.M315152P88362.hades.rak.ac,S=5977,W=6085 69 23a5a0179e108f6282db0000226807b0 7097 -33318e0686108f6282db0000226807b0 7096 -3351581c9c0e8f624cd50000226807b0 7091 3359032360108f6282db0000226807b0 7093 3b3927352be48c62b65b0000226807b0 7072 -3ba2252814118f62a2540100226807b0 7101 4154be0c2fc77761c2550000226807b0 4050 -5b3a7327d73b866299cd0000226807b0 7013 638e073255235d62a5280100226807b0 6660 63b6422e14118f6282db0000226807b0 7102 -8b9b942909118f6282db0000226807b0 7099 8bc95639a6168f62ad4e0000226807b0 7105 -a316ee28980d8f627c460000226807b0 7090 ab802c1e37ac3d6214680100226807b0 6343 b3d12f21cd108f6282db0000226807b0 7098 bb89431b6e728d6230920000226807b0 7076 c386310f062adb61d1980000226807b0 5306 cb56992484478d62f3090100226807b0 7074 -cb79bf3503128f6275220100226807b0 7103 -eb2818367d108f62484b0100a558518d 7094 eb709020e70f8f62292e0000226807b0 7092 f19a8c06409a7d61271c0000226807b0 4128 -f338ad1ff65e8562ff390100226807b0 7007 f9cd03363c457c613a0e0000226807b0 4107 guid uid $ doveconf -n # 2.3.19 (b3ad6004dc): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.19 (4eae2f79) # OS: OpenBSD 7.1 amd64 # Hostname: hades.rak.ac default_vsz_limit = 128 M doveadm_password = # hidden, use -P to show it first_valid_uid = 1000 mail_attribute_dict = file:%h/dovecot-attributes mail_location = maildir:~/mail:LAYOUT=fs:INDEX=~/indexes mail_plugins = " notify replication virtual" 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 imapsieve vnd.dovecot.imapsieve mbox_write_locks = fcntl mmap_disable = yes namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Bin { auto = subscribe special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } prefix = separator = / } namespace virtual { location = virtual:/etc/dovecot/virtual:LAYOUT=fs:INDEX=~/virtual mailbox All { auto = subscribe comment = All my messages special_use = \All } mailbox Flagged { auto = subscribe special_use = \Flagged } prefix = Virtual/ separator = / } passdb { args = /etc/mail/auth driver = passwd-file } plugin { fts = flatcurve fts_autoindex = yes fts_autoindex_exclude = \Trash \Junk fts_enforced = yes fts_languages = en fts_tokenizers = generic email-address imapsieve_mailbox1_before = file:/usr/local/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY,APPEND imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/usr/local/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * imapsieve_mailbox3_before = file:/usr/local/dovecot/sieve/report-ham.sieve imapsieve_mailbox3_causes = COPY,APPEND imapsieve_mailbox3_name = RAK imapsieve_url = sieve://localhost/ mail_replica = tcps:eos.rak.ac:12507 plugin = fts fts_flatcurve replication_dsync_parameters = -d -l 30 -U -n "" sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /usr/local/dovecot/sieve-before.d/ sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment sieve_pipe_bin_dir = /usr/local/dovecot/sieve-pipe sieve_pipe_socket_dir = sieve-pipe sieve_plugins = sieve_imapsieve sieve_extprograms } protocols = imap lmtp sieve replication_dsync_parameters = -d -l 30 -U -n "" service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = _dovecot } unix_listener replication-notify { user = _dovecot } } service auth { unix_listener auth-userdb { user = vmail } } service doveadm { inet_listener { port = 12507 ssl = yes } vsz_limit = 512 M } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } } service imap { vsz_limit = 512 M } service indexer-worker { vsz_limit = 512 M } service lmtp { drop_priv_before_exec = yes process_min_avail = 5 } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } service stats { unix_listener stats-reader { user = vmail } unix_listener stats-writer { user = vmail } } ssl_client_ca_file = /etc/ssl/cert.pem ssl_dh = # hidden, use -P to show it userdb { args = uid=vmail gid=vmail home=/home/vmail/%u /etc/mail/auth driver = static } userdb { args = /etc/mail/auth driver = passwd-file } protocol lmtp { mail_plugins = " notify replication virtual sieve" } protocol lda { mail_plugins = " notify replication virtual sieve" } protocol imap { imap_metadata = yes mail_plugins = " notify replication virtual imap_sieve" } -- |)|/ Ryan Kavanagh | 4E46 9519 ED67 7734 268F |\|\ https://rak.ac | BD95 8F7B F8FC 4A11 C97A

1 0

iPhone does not show 'read marks'.
by Heinz Bruederlin 31 May '22

31 May '22

The iPhone mail app does not show the read marks.The OS/X mail sets and shows the read marks correctly.Is there a way to fix or at least debug this behaviour ?

1 0

Disconnected: Auth process broken (disconnected before auth was ready ... ???
by Hippo Man 30 May '22

30 May '22

I've been running dovecot 2.2.36.4 (baf9232c1) on my Debian-8 host for a long time with no problems. I am trying to move my email server to a Debian-11 host, and I have Dovecot configured exactly the same way that I have it configured under Debian-8. However, when I try to connect to that server via imap, I always get the following error: 2022.05.30-18:17:21 imap-login: Info: Disconnected: Auth process broken (disconnected before auth was ready, waited 0 secs): user=<>, rip=::1, lip=::1, secured, session=<2+nKqj7g4t4AAAAAAAAAAAAAAAAAAAAB> The output of "dovecot -n" appears at the bottom of this message. I'm using mysql on the Debian-8 server for my authentication database, and I'm using mariadb on the Debian-11 server. The contents of the database on the new, Debian-11-based server are exactly the same as those on the Debian-8 server. These are the contents of /opt/local/etc/dovecot/dovecot-sql.ext with the comments removed. I can manually run the following queries against the database with a valid login ID, and these queries succeed ... driver = mysql connect = host=127.0.0.1 user=postfix password=XXXXXXXX dbname=postfix default_pass_scheme = CRYPT password_query = SELECT username AS user, domain, password FROM mailbox WHERE (username = '%u' OR find_in_set('%u', loginid) > 0) AND active = 1 user_query = SELECT concat('/var/vmail/', maildir) AS home, 1003 AS uid, 1003 AS gid FROM mailbox WHERE (username = '%u' OR find_in_set('%u', loginid) > 0) AND active = 1 Also ... % ls -Flas /var/run/dovecot/auth-userdb 0 srw-rw-rw- 1 dovecot root 0 May 30 18:30 /var/run/dovecot/auth-userdb= % ls -Flas /opt/local/etc/dovecot/dovecot-master-users-passwords 4 -rw-rw-r-- 1 root dovecot 36 Dec 16 2018 /opt/local/etc/dovecot/dovecot-master-users-passwords % ls -Flas /opt/local/etc/dovecot/ad-hoc-userdb 4 -rw-rw-r-- 1 root root 416 May 7 14:53 /opt/local/etc/dovecot/ad-hoc-userdb % ls -Flas /opt/local/etc/dovecot/dovecot-master-users-passwords 4 -rw-rw-r-- 1 root dovecot 36 Dec 16 2018 /opt/local/etc/dovecot/dovecot-master-users-passwords When I start up dovecot, the following line appears at the bottom of /var/log/mailclient.log ... 2022.05.30-18:31:37 master: Info: Dovecot v2.2.36.4 (baf9232c1) starting up for imap, pop3, lmtp, imap, pop3 (core dumps disabled) However, if I then run "telnet localhost 143", the following lines appear at the end of /var/log/mailclient.log ... 2022.05.30-18:32:44 master: Error: service(auth): command startup failed, throttling for 2 secs 2022.05.30-18:32:44 auth: Fatal: master: service(auth): child 235327 killed with signal 11 (core dumps disabled) 2022.05.30-18:32:44 imap-login: Info: Disconnected: Auth process broken (disconnected before auth was ready, waited 0 secs): user=<>, rip=::1, lip=::1, secured, session=<8ezN4T7gJOAAAAAAAAAAAAAAAAAAAAAB> The exact, same actions on my Debian-8 host do not fail. And here is the output from "dovecot -n". As you can see, all "verbose" and debug-related options are set to "yes". Thank you for any suggestions you might be able to offer: # 2.2.36.4 (baf9232c1): /opt/local/etc/dovecot/dovecot.conf # OS: Linux 5.10.0-14-amd64 x86_64 Debian 11.3 ext4 # Hostname: my.hostname.com auth_debug = yes auth_debug_passwords = yes auth_master_user_separator = : auth_mechanisms = plain login auth_socket_path = /var/run/dovecot/auth-userdb auth_verbose = yes auth_verbose_passwords = plain base_dir = /var/run/dovecot/ disable_plaintext_auth = no log_path = /var/log/mailclient.log log_timestamp = "%Y.%m.%d-%H:%M:%S " mail_debug = yes mail_location = maildir:/var/vmail/%d/%n/ namespace inbox { inbox = yes list = 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 = INBOX. separator = . } passdb { args = /opt/local/etc/dovecot/dovecot-master-users-passwords driver = passwd-file master = yes pass = yes } passdb { args = /opt/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = scheme=plain username_format=%u /opt/local/etc/dovecot/ad-hoc-userdb driver = passwd-file } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = postmaster(a)my.hostname.com protocols = imap pop3 lmtp imap pop3 service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service imap { executable = imap postlogin } service pop3 { executable = pop3 postlogin } service postlogin { executable = script-login -d rawlog } ssl_cert = </etc/letsencrypt/live/my.hostname.com/fullchain.pem ssl_cipher_list = HIGH:!SSLv2:!aNULL@STRENGTH ssl_client_ca_dir = /etc/ssl/certs ssl_client_ca_file = ca-certificates.crt ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { args = /opt/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { args = scheme=plain username_format=%u /opt/local/etc/dovecot/ad-hoc-userdb driver = passwd-file } protocol imap { mail_max_userip_connections = 128 } -- hippoman(a)gmail.com Take a hippopotamus to lunch today.

1 1

Force TCP socket disconnect on imap login failure?
by Lloyd Zusman 27 May '22

27 May '22

I'm running dovecot 2.2.13 under Debian 8. I'd like to force an immediate TCP socket disconnect after any imap login attempt that fails. Right now, if invalid credentials are supplied during an imap login, the client can keep retrying logins with different credentials. However, I want to prevent that from occurring by causing the socket connection to be closed as soon as there is any failed login attempt. I haven't been able to find any dovecot configuration setting which could control this behavior, but I'm hoping that I just missed something. Thank you very much for any suggestions. -- hippoman(a)gmail.com Take a hippopotamus to lunch today.

16 28

solr-jetty package in Debian 11 bullseye
by John Gateley 25 May '22

25 May '22

Hello, I am in the process of upgrading the OS on my mailserver, currently Debian 9, to Debian 11. The solr-jetty package does not appear to exist in Debian 11. Does anyone know where it is? Thanks John

2 1

Re: Duplicate messages if message is moved when using dsync
by Thom Pol 25 May '22

25 May '22

Hi, Thanks for your reply! The dsync is triggered on IMAP/POP3/LDA/LMTP activity. See my config dump from the first email. I'm wondering if my config is not OK so it causes dsync to sync twice? > you need / preferably use a database for your user auth I already do this. > run the command doveadm user '*' - it needs to return a list of users > that will trigger replication (after doing config above) This part works fine. Thanks, Thom Pol On 18/05/2022 16:51, Paul Kudla (SCOM.CA Internet Services Inc.) wrote: > ok - question > > when you say dsync are you running that manually or as a cronjob ?? > > or using replication via dsync > > there is a difference > > replication is designed to handle mailbox changes by quing the changes > on the fly and then update in the background. > > replication tracks all changes in a mailbox and then sends them one at a > time to the target server. > > i run replication with tcp (not tcps or dsync) > > I find (other then the 300+folder issues) that it runs pretty good in > real time. > > if you are running dsync manually then yes timing on its own will be a > hit and miss and it will never sync properly if something appears during > the dsync process. > > if you have the sive running as discussed that is the first step > > you should setup replication so things are handled in real time. > > pls advise if you have already done replication or just manually dsyncing. > > Below is basic replication setup but you need to make sure various > pre-requirements are in place a head of time. > > 1. you need / preferably use a database for your user auth > > you need to setup an iterate sql statement that returns the user > list of users to be replicated > > Example (i use pgsql) : > > # cat dovecot-pgsql.conf > driver = pgsql > connect = host=localhost port=5433 dbname=scom_billing user=pgsql password= > default_pass_scheme = PLAIN > > password_query = SELECT username as user, password FROM email_users > WHERE username = '%u' and password <> 'alias' and status = True and > destination = '%u' > > user_query = SELECT home, uid, gid FROM email_users WHERE username = > '%u' and password <> 'alias' and status = True and destination = '%u' > > iterate_query = SELECT "username" as user, domain FROM email_users WHERE > status = True and alias_flag = False > > #iterate_query above is what returns the user lists > > 2. run the command doveadm user '*' - it needs to return a list of users > that will trigger replication (after doing config above) > > 3. in general here is my relative parts for tcp replication > > In dovecot.conf > > --------------------------------------------------------------------------- > > mail_plugins = " virtual notify replication fts fts_lucene " > > replication_dsync_parameters = -d -N -l 300 -U > > dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u > > plugin { > > ..... > mail_replica = tcp:10.221.0.19:12345 > > #(note this is the ip address of the other server) > #it is the only config change ie server one above > #server2 would be the other server for communicating. > > > > ..... > > } > > protocol imap { > mail_max_userip_connections = 50 > mail_plugins = $mail_plugins notify replication > } > > protocol pop3 { > mail_max_userip_connections = 50 > mail_plugins = $mail_plugins notify replication > } > > protocol imaps { > mail_max_userip_connections = 25 > mail_plugins = $mail_plugins notify replication > } > > protocol pop3s { > mail_max_userip_connections = 25 > mail_plugins = $mail_plugins notify replication > } > > replication_max_conns = 100 (optional) > > replication_full_sync_interval = 1d > > service replicator { > client_limit = 0 > drop_priv_before_exec = no > idle_kill = 4294967295s > process_limit = 1 > process_min_avail = 0 > service_count = 0 > vsz_limit = 8g > unix_listener replicator-doveadm { > mode = 0600 > user = vmail > } > vsz_limit = 8192M > } > > service aggregator { > process_limit = 1000 > #vsz_limit = 1g > fifo_listener replication-notify-fifo { > user = vmail > group = vmail > mode = 0666 > } > > } > > > > ---------------------------------------------------------------------------- > > that should do it? > > > > > > > > > > > > > Happy Wednesday !!! > Thanks - paul > > Paul Kudla > > > Scom.ca Internet Services<http://www.scom.ca> > 004-1009 Byron Street South > Whitby, Ontario - Canada > L1N 4S3 > > Toronto 416.642.7266 > Main?1.866.411.7266 > Fax?1.888.892.7266

1 0

Panic: file userdb-blocking with Dovecot 2.3.19
by Niklas Meyer 25 May '22

25 May '22

Hello all, since we´ve tested around with the new dovecot release in the mailcow project we´ve came across a curious and new error with Dovecot: /auth: Panic: file userdb-blocking.c: line 124 (userdb_blocking_iter_next): assertion failed: (ctx->conn != NULL)/ *System Information:* *Dovecot Version: 2.3.19 (b3ad6004dc)** * *OS: Debian 11 (dovecot is running in a docker container)* *CPU: x86* *Filesystem: ext4* The error occurs only with the newest Dovecot release (2.3.19), the config hasn´t been changed. In the Attachment you can find all (hopefully) helpful informations. Maybe it is a simple fix. Kind regards and thanks for your help. -- The mailcow Team - Niklas --- The Infrastructure Company GmbH Parkstr. 42 47877 Willich Handelsregister: Amtsgericht Krefeld, HRB 15904 USt-IdNr.: DE308854956 Geschäftsführer: Martin Vogt /*Hinweis: *Der Inhalt dieser E-Mail ist vertraulich und nur für den in der Nachricht angegebenen Empfänger bestimmt. Es ist strengstens untersagt, irgendeinen Teil dieser Nachricht ohne schriftliche Zustimmung des Absenders an Dritte weiterzugeben. Wenn Sie diese Nachricht irrtümlich erhalten haben, antworten Sie bitte auf diese Nachricht und folgen Sie mit ihrer Löschung, so dass wir sicherstellen können, dass ein solcher Fehler in Zukunft nicht mehr vorkommt./

3 2