- dovecot - dovecot.org

Re: Urgent - Help needed
by Kishore Potnuru 05 May '20

05 May '20

Thank you for the reply. Actually there are 7 emails sent by the user. 2 emails are delivered successfully. 5 are missing. All are having the same log with virtual. At present I might not be able to change those settings.... Is there any way to verify they are delivered to them or not? do we have any logs to verify the same? On Tue, May 5, 2020 at 9:16 AM Zhang Huangbin <zhb(a)iredmail.org> wrote: > > > On May 5, 2020, at 4:06 PM, Kishore Potnuru <kishore.reachme(a)gmail.com> > wrote: > > > > May 5 07:35:21 testserver postfix/virtual[29843]: EB6A2206818: to=< > selfemail(a)testing2.com>, relay=virtual, delay=0.05, delays=0.05/0/0/0, > dsn=2.0.0, status=sent (delivered to maildir) > > According to the log, this user is using Postfix builtin transport > "virtual" as LDA, not Dovecot LDA. Fixing this should get your email > delivered correctly. > > ---- > Zhang Huangbin, founder of iRedMail project: https://www.iredmail.org/ > >

1 0

Dovecot LDAP/AD with exim as mta
by Benoît PELISSIER 05 May '20

05 May '20

Hi, I have done configuration dovecot/exim/samba4ad. I use dovecot-lda not exim to deliver mail. And dovecot to authentify users. I have users with mail address on AD. When i sent mail to user mail address, its working. I have distribution group or group with mail address on AD and users as member of this groups. But when i send mail to group mail address, its not working Dovecot-lda can do it ? Or i need do it with exim (or postfix) ? Thanks Benoît

4 4

Dovecot IMAPS : Thunderbird SSL cert issue / Evolution OK
by hanasaki＠gmail.com 05 May '20

05 May '20

Recently thunderbird and Dovecot IMAPS cannot agree on SSL however Evolution, on the exact same system, is working fine with the same accounts. Tried recreating the Dovecot cert and also the thunderbird accounts from scratch. The OpenSSL raw client works fine as well. Would someone also confirm the openssl commands to create a selfsigned cert for dovecot imaps. They cert created does work with evolution; just not thunderbird. Thoughts? Apr 8 18:10:18 hh dovecot: imap-login: Debug: SSL error: SSL_accept() failed: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate: SSL alert number 42 Apr 8 18:10:18 hh dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=000, lip=0000 TLS handshaking: SSL_accept() failed: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate: SSL alert number 42, session=<--> Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x10, ret=1: before SSL initialization Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: before SSL initialization Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: before SSL initialization Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: before SSL initialization Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS read client hello Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write server hello Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write change cipher spec Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: TLSv1.3 write encrypted extensions Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write certificate Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: TLSv1.3 write server certificate verify Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write finished Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2001, ret=1: TLSv1.3 early data Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: TLSv1.3 early data Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: TLSv1.3 early data Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: TLSv1.3 early data Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: TLSv1.3 early data Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL alert: where=0x4004, ret=554: fatal bad certificate Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: error Apr 8 18:10:19 hh dovecot: imap-login: Debug: SSL error: SSL_accept() failed: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate: SSL alert number 42 Apr 8 18:10:19 firewall dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=000, lip=00, TLS handshaking: SSL_accept() failed: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate: SSL alert number 42, session=<---> reference http://forums.debian.net/viewtopic.php?f=5&t=145849

6 12

Is It possbile to convert to DBox or MDBox on a per user basis?
by Asai 04 May '20

04 May '20

Greetings, Is It possbile to convert to DBox or MDBox on a per user basis? If so, can someone point me to the correct documentation? Thank you, -- Asai

2 1

Issue with doveadm backup
by Asai 02 May '20

02 May '20

Greetings, Lately I've been seeing this error pop up when running a nightly cron to a backup share with doveadm: Error: stat(/vmail/domain.tld/user/.dovecot-box-sync.lock/tmp) failed: Not a directory: 1 Time(s) This is the command: doveadm backup -u user(a)domain.tld maildir:backupshare/daily/domain.tld/user Our main vmail directory is on an NFS share and seems to be working fine. This has only occurred recently. Can anyone offer any insights into what this is and fixing it if need be? -- Asai

1 0

Problems during replication
by Francis Augusto Medeiros-Logeay 02 May '20

02 May '20

Hi, I migrated my dovecot instance to a new server. I moved the mail directories, databases, etc. Replication is on, and I keep having these errors: May 02 16:19:45 dsync-local(francis(a)francisaugusto.com): Error: Couldn't lock /var/mail/vmail/francisaugusto.com/francis//.dovecot-sync.lock: fcntl(/var/mail/vmail/francisaugusto.com/francis//.dovecot-sync.lock, write-lock, F_SETLKW) locking failed: Timed out after 30 seconds (WRITE lock held by pid 178) May 02 16:19:45 doveadm: Error: Couldn't lock /var/mail/vmail/medeiros.co/inis//.dovecot-sync.lock: fcntl(/var/mail/vmail/medeiros.co/inis//.dovecot-sync.lock, write-lock, F_SETLKW) locking failed: Timed out after 30 seconds (WRITE lock held by pid 185) See the errors are both from dsync-local and doveadm. Any tips on how to fix this? Best, Francis

1 0

sender rewriting scheme
by Mathieu Gosset 01 May '20

01 May '20

Hello, I would like to know if dovecot/pigeonhole provide a way to do sieve redirection with sender rewriting scheme (srs)? I apologize in advance if that e-mail address isn't meant for assistance, but I've asked on the official irc channel on freenode and was told to direct my query to dovecot(a)dovecot.org, I hope you won't mind. Thanking you in advance Best Regards Mathieu Gosset

2 2

Shared folder replication - query - can it be replicated?
by Daniel Botting 01 May '20

01 May '20

Hi, Further to my earlier posting to the mailing list this morning regarding replicating of public namespaces is it possible that a shared name space can be replicated: https://wiki.dovecot.org/SharedMailboxes/Shared We use LDAP, the thought being that an LDAP service account is created and the corresponding mailbox is shared to other mail users on the server. Kind regards Daniel

1 0

Public folder replication ( not replicating) - roadmap query
by Daniel Botting 01 May '20

01 May '20

Hi, We have a server pair running Dovecot 2.3.10 (latest stable) version directly from repo.dovecot.org and have mailbox and sieve replication working as required in production. I have setup a test pair with the exact same configuration and on each server setup public name space for a mailbox address such as jobs@ where multiple users would need to subscribe to this to view recruitment emails. This is not replicating as per the advice on the below url: - https://wiki.dovecot.org/Replication Is there an easily maintainable workaround at this time and is this on the roadmap for the developers, if so what time scale is being envisaged? Kind regards Daniel

1 0

trying to authenticate postfix against Dovecot 2.3.4.1 passwd-file, using lmtp
by kelly 29 Apr '20

29 Apr '20

Sorry for all the notes; I'm trying to have postfix 3.4.8, trying to authenticate postfix against Dovecot 2.3.4.1 passwd-file, using lmtp. Not sure if I'm failing because of a smtp failure or I'm not getting authenticated by dovecot. main.cf virtual_transport=lmtp:unix:private/dovecot-lmtp _*postfix log*_ connect from unknown[192.168.212.227] Apr 28 13:42:14 mail3 postfix/smtpd[21859]: lost connection after EHLO from unknown[192.168.212.227] Apr 28 13:42:14 mail3 postfix/smtpd[21859]: disconnect from unknown[192.168.212.227] ehlo=2 starttls=1 commands=3 I keep getting smtp timed out, it takes a while, but does time out. _*Using openssl s_client -connect 192.168.0.242:25 -starttls smtp*_ subject=/C=US/ST=CA/L=Fullerton/O=xxxx Law Group/CN=mail.xxxxlawgroup.com/emailAddress=postmaster@xxxxlawgroup.com issuer=/C=US/ST=CA/L=Fullerton/O=xxxx Law Group/CN=mail.xxxxlawgroup.com/emailAddress=postmaster@xxxxlawgroup.com --- No client certificate CA names sent Peer signing digest: SHA512 Server Temp Key: ECDH, P-256, 256 bits --- SSL handshake has read 2717 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: 2F32869DCC5511285AA7D99ABAAD34C1E42EB04A7AA704C5EBC801C2625ECB7A Session-ID-ctx: Master-Key: F8D92A918AC14D31B252D981228A0AA3C0BCA379B9D12DD6E795092C8390382DA09D640B2F24AD8F279C13E71DF86434 Key-Arg : None PSK identity: None PSK identity hint: None SRP username: None TLS session ticket lifetime hint: 7200 (seconds) TLS session ticket: 0000 - 89 e1 b7 19 14 7b d6 85-88 cc 8d f0 e0 45 6f 23 .....{.......Eo# 0010 - 34 b7 30 ec 99 39 d9 98-3f 5d 70 b3 f3 fe 0a 13 4.0..9..?]p..... 0020 - 77 3c 2c 20 22 b4 62 71-ec 02 b4 ee 4e 35 78 ef w<, ".bq....N5x. 0030 - f2 2c 7d 01 e3 51 7c 2e-c4 78 65 37 d6 ef 60 32 .,}..Q|..xe7..`2 0040 - f6 62 bc e5 ba fc 82 1b-37 0a de c9 b1 82 99 f5 .b......7....... 0050 - de 6c d5 c1 56 25 5a 2a-27 8d a3 6a 8a bd 37 d8 .l..V%Z*'..j..7. 0060 - 11 65 0d fd 89 c3 e2 86-43 89 9e b9 c2 b7 a4 44 .e......C......D 0070 - dc f3 8b 94 8e 41 37 d3-32 ca 2c 4e 65 6b 1c f9 .....A7.2.,Nek.. 0080 - 04 d0 45 32 8a 2d 67 8d-36 05 23 4a 58 c2 d8 b7 ..E2.-g.6.#JX... 0090 - 65 ba e0 8d 8b 85 9c c2-45 31 78 33 86 d1 bf 1f e.......E1x3.... Start Time: 1588106358 Timeout : 300 (sec) Verify return code: 18 (self signed certificate) --- 250 CHUNKING helo 401 Syntax: HELO hostname helo mail3.xxxxlawgroup.com 250 mail3.xxxxlawgroup.com _*Dovecot Log during client login attempt*_ Apr 28 13:33:17 auth: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth Apr 28 13:33:17 auth: Debug: Module loaded: /usr/lib/dovecot/modules/auth/lib20_auth_var_expand_crypt.so Apr 28 13:33:17 auth: Debug: Module loaded: /usr/lib/dovecot/modules/auth/libdriver_mysql.so Apr 28 13:33:17 auth: Debug: Module loaded: /usr/lib/dovecot/modules/auth/libdriver_pgsql.so Apr 28 13:33:17 auth: Debug: Read auth token secret from /var/run/dovecot/auth-token-secret.dat Apr 28 13:33:17 auth: Debug: passwd-file /etc/dovecot/users: Read 3 users in 0 secs Apr 28 13:33:17 auth: Debug: auth client connected (pid=21786) Apr 28 13:33:19 auth: Debug: client in: AUTH 1 PLAIN service=imap secured=tls session=w8T7vV+keNHAqNTj lip=192.168.0.242 rip=192.168.212.227 lport=993 rport=53624 ssl_cipher=ECDHE-RSA-AES256-GCM-SHA384 ssl_cipher_bits=256 ssl_pfs=KxECDHE ssl_protocol=TLSv1.2 resp=<hidden> Apr 28 13:33:19 auth-worker(21788): Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth Apr 28 13:33:19 auth-worker(21788): Debug: Module loaded: /usr/lib/dovecot/modules/auth/lib20_auth_var_expand_crypt.so Apr 28 13:33:19 auth-worker(21788): Debug: Module loaded: /usr/lib/dovecot/modules/auth/libdriver_mysql.so Apr 28 13:33:19 auth-worker(21788): Debug: Module loaded: /usr/lib/dovecot/modules/auth/libdriver_pgsql.so Apr 28 13:33:19 auth-worker(21788): Debug: passwd-file /etc/dovecot/users: Read 3 users in 0 secs Apr 28 13:33:19 auth-worker(21788): Debug: pam(user1(a)xxxxlawgroup.com,192.168.212.227,<w8T7vV+keNHAqNTj>): lookup service=dovecot Apr 28 13:33:19 auth-worker(21788): Debug: pam(user1(a)xxxxlawgroup.com,192.168.212.227,<w8T7vV+keNHAqNTj>): #1/1 style=1 msg=Password: Apr 28 13:33:21 auth-worker(21788): Info: pam(user1(a)xxxxlawgroup.com,192.168.212.227,<w8T7vV+keNHAqNTj>): pam_authenticate() failed: Authentication failure (Password mismatch?) Apr 28 13:33:21 auth: Debug: passwd-file(user1(a)xxxxlawgroup.com,192.168.212.227,<w8T7vV+keNHAqNTj>): lookup: user=user1(a)xxxxlawgroup.com file=/etc/dovecot/users Apr 28 13:33:21 auth: Debug: client passdb out: OK 1 user=user1(a)xxxxlawgroup.com Apr 28 13:33:21 auth: Debug: master in: REQUEST 570163201 21786 1 83383e6a14e2c97c394478e56e4e7fd9 session_pid=21789 request_auth_token Apr 28 13:33:21 auth-worker(21788): Debug: passwd(user1(a)xxxxlawgroup.com,192.168.212.227,<w8T7vV+keNHAqNTj>): lookup Apr 28 13:33:21 auth-worker(21788): Info: passwd(user1(a)xxxxlawgroup.com,192.168.212.227,<w8T7vV+keNHAqNTj>): unknown user Apr 28 13:33:21 auth: Debug: passwd-file(user1(a)xxxxlawgroup.com,192.168.212.227,<w8T7vV+keNHAqNTj>): lookup: user=user1(a)xxxxlawgroup.com file=/etc/dovecot/users Apr 28 13:33:21 auth: Debug: master userdb out: USER 570163201 user1(a)xxxxlawgroup.com auth_token=918dceaf840599ad8132ae793a11ab5b9d17bb8c Apr 28 13:33:21 imap-login: Info: Login: user=<user1(a)xxxxlawgroup.com>, method=PLAIN, rip=192.168.212.227, lip=192.168.0.242, mpid=21789, TLS, session=<w8T7vV+keNHAqNTj> Apr 28 13:33:21 imap(user1(a)xxxxlawgroup.com)<21789><w8T7vV+keNHAqNTj>: Debug: Added userdb setting: plugin/=yes Apr 28 13:33:21 imap(user1(a)xxxxlawgroup.com)<21789><w8T7vV+keNHAqNTj>: Debug: Effective uid=1001, gid=1001, home=/srv/vmail/user1(a)xxxxlawgroup.com Apr 28 13:33:21 imap(user1(a)xxxxlawgroup.com)<21789><w8T7vV+keNHAqNTj>: Debug: Home dir not found: /srv/vmail/user1(a)xxxxlawgroup.com Apr 28 13:33:21 imap(user1(a)xxxxlawgroup.com)<21789><w8T7vV+keNHAqNTj>: Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=mbox:~/mail Apr 28 13:33:21 imap(user1(a)xxxxlawgroup.com)<21789><w8T7vV+keNHAqNTj>: Debug: mbox: INBOX defaulted to /srv/vmail/user1(a)xxxxlawgroup.com/mail/inbox Apr 28 13:33:21 imap(user1(a)xxxxlawgroup.com)<21789><w8T7vV+keNHAqNTj>: Debug: fs: root=/srv/vmail/user1(a)xxxxlawgroup.com/mail, index=, indexpvt=, control=, inbox=/srv/vmail/user1(a)xxxxlawgroup.com/mail/inbox, alt= Apr 28 13:33:21 imap(user1(a)xxxxlawgroup.com)<21789><w8T7vV+keNHAqNTj>: Info: Connection closed (IDLE running for 0.001 + waiting input for 0.001 secs, 2 B in + 10+10 B out, state=wait-input) in=11 out=387 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 _*The imap client logon looks to be fine;*_ Apr 27 16:57:02 auth-worker(17516): Debug: pam(user1(a)xxxxlawgroup.com,192.168.212.227,<5oeueE6k4uvAqNTj>): lookup service=dovecot Apr 27 16:57:02 auth-worker(17516): Debug: pam(user1(a)xxxxlawgroup.com,192.168.212.227,<5oeueE6k4uvAqNTj>): #1/1 style=1 msg=Password: Apr 27 16:57:04 auth-worker(17516): Info: pam(user1(a)xxxxlawgroup.com,192.168.212.227,<5oeueE6k4uvAqNTj>): pam_authenticate() failed: Authentication failure (Password mismatch?) Apr 27 16:57:04 auth: Debug: passwd-file(user1(a)xxxxlawgroup.com,192.168.212.227,<5oeueE6k4uvAqNTj>): lookup: user=user1(a)xxxxlawgroup.com file=/etc/dovecot/users Apr 27 16:57:04 auth: Debug: client passdb out: OK 1 user=user1(a)xxxxlawgroup.com Apr 27 16:57:04 auth: Debug: master in: REQUEST 3141009409 17512 1 ee216d7c96d9d2faeb794c94747d479a session_pid=17517 request_auth_token Apr 27 16:57:04 auth-worker(17516): Debug: passwd(user1(a)xxxxlawgroup.com,192.168.212.227,<5oeueE6k4uvAqNTj>): lookup Apr 27 16:57:04 auth-worker(17516): Info: passwd(user1(a)xxxxlawgroup.com,192.168.212.227,<5oeueE6k4uvAqNTj>): unknown user Apr 27 16:57:04 auth: Debug: passwd-file(user1(a)xxxxlawgroup.com,192.168.212.227,<5oeueE6k4uvAqNTj>): lookup: user=user1(a)xxxxlawgroup.com file=/etc/dovecot/users Apr 27 16:57:04 auth: Debug: master userdb out: USER 3141009409 user1(a)xxxxlawgroup.com auth_token=3866c7fac33f25e817f9d95c494a13343942f60d Apr 27 16:57:04 imap-login: Info: Login: user=<user1(a)xxxxlawgroup.com>, method=PLAIN, rip=192.168.212.227, lip=192.168.0.242, mpid=17517, TLS, session=<5oeueE6k4uvAqNTj> Apr 27 16:57:04 imap(user1(a)xxxxlawgroup.com)<17517><5oeueE6k4uvAqNTj>: Debug: Added userdb setting: plugin/=yes Apr 27 16:57:04 imap(user1(a)xxxxlawgroup.com)<17517><5oeueE6k4uvAqNTj>: Debug: Effective uid=1001, gid=1001, home=/srv/vmail/user1(a)xxxxlawgroup.com Apr 27 16:57:04 imap(user1(a)xxxxlawgroup.com)<17517><5oeueE6k4uvAqNTj>: Debug: Home dir not found: /srv/vmail/user1(a)xxxxlawgroup.com Apr 27 16:57:04 imap(user1(a)xxxxlawgroup.com)<17517><5oeueE6k4uvAqNTj>: Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=mbox:~/mail Apr 27 16:57:04 imap(user1(a)xxxxlawgroup.com)<17517><5oeueE6k4uvAqNTj>: Debug: mbox: INBOX defaulted to /srv/vmail/user1(a)xxxxlawgroup.com/mail/inbox Apr 27 16:57:04 imap(user1(a)xxxxlawgroup.com)<17517><5oeueE6k4uvAqNTj>: Debug: fs: root=/srv/vmail/user1(a)xxxxlawgroup.com/mail, index=, indexpvt=, control=, inbox=/srv/vmail/user1(a)xxxxlawgroup.com/mail/inbox, alt= _*User test on dovecot*_ _*root@mail3:/etc/dovecot# doveadm user user1(a)xxxxlawgroup.com*_ field value uid vmail gid vmail home /srv/vmail/user1(a)xxxxlawgroup.com mail mbox:~/mail _*root@mail3:/etc/dovecot# doveadm user user2(a)xxxxlawgroup.com*_ field value uid vmail gid vmail home /srv/vmail/user2(a)xxxxlawgroup.com mail mbox:~/mail _*log of test*_ r 28 12:37:53 auth-worker(21333): Debug: passwd(user1(a)xxxxlawgroup.com): lookup Apr 28 12:37:53 auth-worker(21333): Info: passwd(user1(a)xxxxlawgroup.com): unknown user Apr 28 12:37:53 auth: Debug: passwd-file(user1(a)xxxxlawgroup.com): lookup: user=user1(a)xxxxlawgroup.com file=/etc/dovecot/users Apr 28 12:37:53 auth: Debug: userdb out: USER 1 user1(a)xxxxlawgroup.com Apr 28 12:38:04 auth: Debug: master in: USER 1 user2(a)xxxxlawgroup.com service=doveadm debug Apr 28 12:38:04 auth-worker(21333): Debug: passwd(user2(a)xxxxlawgroup.com): lookup Apr 28 12:38:04 auth-worker(21333): Info: passwd(user2(a)xxxxlawgroup.com): unknown user Apr 28 12:38:04 auth: Debug: passwd-file(user2(a)xxxxlawgroup.com): lookup: user=user2(a)xxxxlawgroup.com file=/etc/dovecot/users Apr 28 12:38:04 auth: Debug: userdb out: USER 1 user2(a)xxxxlawgroup.com _*Debian 10.2 Buster*_ _*Dovecot 2.3.4.1 (installed using apt)*_ # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-6-amd64 x86_64 Debian 10.3 # Hostname: mail3.xxxxlawgroup.com auth_debug = yes auth_mechanisms = plain login auth_verbose = yes debug_log_path = /var/log/dovecot.log disable_plaintext_auth = no info_log_path = /var/log/dovecot.log log_path = /var/log/dovecot.log login_greeting = xxxx xxxxx Dovecot ready. mail_debug = yes mail_gid = vmail mail_home = /srv/vmail/%u mail_location = mbox:~/mail mail_privileged_group = vmail mail_uid = vmail 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 = separator = / } passdb { driver = pam } passdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = " imap lmtp pop3" service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service lmtp { unix_listener lmtp { group = postfix mode = 0666 user = postfix } } ssl_cert = </etc/ssl/certs/mail.xxxxlawgroup.com.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } verbose_proctitle = yes protocol lmtp { postmaster_address = postmaster(a)xxxxlawgroup.com } _*On the postfix side:*_ *main.cf* *ver 3.4.8* smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no append_dot_mydomain = no readme_directory = no compatibility_level = 2 smtpd_tls_cert_file=/etc/ssl/certs/mail.xxxxlawgroup.com.pem smtpd_tls_key_file=/etc/ssl/private/mail.xxxxlawgroup.com.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination myhostname = mail3.xxxxlawgroup.com myorigin = /etc/mailname mailbox_size_limit = 0 recipient_delimiter = + inet_protocols = all inet_interfaces = 127.0.0.1, 192.168.0.242 mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 23.120.233.17 192.168.0.0/24 192.168.39.0/24 192.168.14.0/24 192.168.212.0/24 mydestination = localhost smtpd_recipient_restrictions = permit_sasl_autheticated permit_mynetworks reject_unauth_destination relayhost = [192.168.0.253]:587 soft_bounce=yes *virtual_transport=lmtp:unix:private/dovecot-lmtp* *virtual_mailbox_domains = xxxxlawgroup.com* *virtual_mailbox_maps=hash:/etc/postfix/vmail_maps* *virtual_alias_maps=hash:/etc/postfix/virtual* *relay_domains=hash:/etc/postfix/relay_domains* *smtp_sasl_auth_enable=yes* *smtpd_sasl_type=dovecot* *smtpd_sasl_path=private/auth* *queue_directory=/var/spool/postfix* *broken_sasl_auth_clients=yes* *smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd* debug_peer_level=4 debug_peer_list=192.168.0.242 _*/etc/postfix/sasl_passwd*_ xxxxlawgroup.com username:password _*/etc/postfix/vmail_maps*_ user1(a)xxxxlawgroup.com user1(a)xxxxlawgroup.com user2(a)xxxxlawgroup.com user2(a)xxxxlawgroup.com user3(a)xxxxlawgroup.com user3(a)xxxxlawgroup.com <mailto:user3@xxxxlawgroup.com> _*master.cf*_ smtp inet n - y - - smtpd submission inet n - y - - smtpd -o syslog_name=postfix/submission -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject -o smtpd_relay_restrictions=permit_sasl_authenticated,reject -o smtpd_sasl_type=dovecot -o smtpd_sasl_path=private/auth -o smtpd_sasl_security_options=noanonymous -o smtpd_sasl_local_domain=$myhostname -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_sender_login_maps=/etc/postfix/virtual pickup unix n - y 60 1 pickup cleanup unix n - y - 0 cleanup qmgr unix n - n 300 1 qmgr tlsmgr unix - - y 1000? 1 tlsmgr rewrite unix - - y - - trivial-rewrite bounce unix - - y - 0 bounce defer unix - - y - 0 bounce trace unix - - y - 0 bounce verify unix - - y - 1 verify flush unix n - y 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - y - - smtp relay unix - - y - - smtp -o syslog_name=postfix/$service_name showq unix n - y - - showq error unix - - y - - error retry unix - - y - - error discard unix - - y - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - y - - lmtp anvil unix - - y - 1 anvil scache unix - - y - 1 scache postlog unix-dgram n - n - 1 postlogd maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} -- Jon Kelly CNE kelly(a)kel-tek.com p 714.894.0130 For service calls, please email service(a)kel-tek.com

2 1

problem with a public folder
by David Mehler 28 Apr '20

28 Apr '20

Hello, I'm trying to set up a public folder called TestFolder. I'm getting this error: #doveadm acl get -A "Public/TestFolder" doveadm(username(a)example.com): Error: Can't open mailbox Public/TestFolder: Mailbox doesn't exist: Public/TestFolder Username ID Global Rights # ls -ld /var/vmail/public drwx------ 4 vmail vmail 512 Apr 15 23:17 public/ # ls -ld public/.TestFolder drwx------ 5 vmail vmail 512 Apr 15 23:20 .TestFolder/ My goal is a public namespace under which I have several folders for internal communications that users can access, TestFolder being an example. Suggestions welcome. Thanks. Dave. #doveconf -n # 2.3.10 (0da0eff44): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (bf8ef1c2) # OS: FreeBSD 12.1-RELEASE-p3 amd64 # Hostname: mail.example.com auth_cache_size = 10 M auth_default_realm = example.com auth_mechanisms = plain login auth_realms = example.com dict { lastlogin = mysql:/usr/local/etc/dovecot/dovecot-last-login.conf } first_valid_gid = 2100 first_valid_uid = 2100 hostname = mail.example.com imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags imap_idle_notify_interval = 1 mins last_valid_gid = 2100 last_valid_uid = 2100 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lda_original_recipient_header = X-Original-To listen = xxx.xxx.xxx.xxx lmtp_rcpt_check_quota = yes log_timestamp = "%Y-%m-%d %H:%M:%S " mail_access_groups = vmail mail_fsync = never mail_gid = vmail mail_home = /var/vmail/mailboxes/%d/%n mail_location = dbox:~/mail mail_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt mail_privileged_group = vmail mail_server_admin = mailto:postmaster@example.com mail_uid = vmail 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 = sdbox:/var/vmail/public/:CONTROL=~/mail/public:INDEX=~/mail/public:INDEXPVT=~/mail/public prefix = Public/ separator = / subscriptions = yes type = public } namespace { hidden = no list = yes location = maildir:/var/vmail/shared/office/.Maildir:CONTROL=~/.Maildir/control/office:INDEX=~/.Maildir/index/office prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { inbox = yes location = 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 } prefix = separator = / type = private } 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 fts = lucene fts_autoindex = yes fts_autoindex_exclude = \Junk fts_autoindex_exclude2 = \Trash fts_autoindex_exclude3 = \Spam fts_autoindex_max_recent_msgs = 80 fts_index_timeout = 90 fts_lucene = whitespace_chars=@. normalize no_snowball imapsieve_mailbox1_before = file:/usr/local/lib/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/usr/local/lib/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * last_login_dict = proxy::lastlogin last_login_key = # hidden, use -P to show it mail_crypt_curve = prime256v1 mail_crypt_global_private_key = # hidden, use -P to show it mail_crypt_global_public_key = # hidden, use -P to show it mail_crypt_save_version = 2 mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size quota = count:User quota quota_exceeded_message = Storage quota for this account has been exceeded, please try again later. quota_grace = 10%% quota_rule2 = Trash:ignore 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 = file:/var/vmail/sieve/%d/%n/scripts;active=/var/vmail/sieve/%d/%n/active-script.sieve sieve_before = /var/vmail/sieve/global/spam-global.sieve sieve_extensions = +notify +imapflags +spamtest +spamtestplus +virustest +editheader 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 = /usr/local/lib/dovecot/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 = /var/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 %n 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 = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } user = root } service imap-login { inet_listener imap { port = 143 } process_min_avail = 1 } service imap { executable = imap } service lmtp { executable = lmtp unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { address = 172.16.21.3 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 stats { unix_listener stats-reader { group = vmail mode = 0660 user = vmail } unix_listener stats-writer { group = vmail mode = 0660 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.sh/example.com/fullchain.crt ssl_cipher_list = EECDH+AESGCM:EDH+AESGCM ssl_curve_list = P-256 ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_options = no_ticket ssl_prefer_server_ciphers = yes userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_fsync = optimized mail_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt sieve } protocol lda { mail_fsync = optimized mail_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt sieve } protocol imap { mail_max_userip_connections = 20 mail_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt imap_acl imap_quota imap_sieve imap_zlib last_login quota welcome } protocol sieve { info_log_path = /var/log/dovecot/dovecot-sieve.log log_path = /var/log/dovecot/dovecot-sieve-errors.log } mail_home = /var/vmail/mailboxes/%d/%n mail_location = dbox:~/mail

5 9

Header search on Dovecot with SOLR
by Ricardo Machini Barbosa 28 Apr '20

28 Apr '20

Hello, I am using dovecot 2.3.0 with FTS Solr 7.7.2. I started having problems where the solr stopped working, I came to the conclusion that when a specific user is accessing his email, the queries made on SOLR are dropping this service. Apr 28 11:03:59 Error: imap(tullio(a)dominio.com.br)<125772><fdHRQlqkupe6zZkj>: fts_solr: Lookup failed: Request timed out (Request queued 180.186 secs ago, 2 times retried, 3 send attempts in 180.185 secs, 60.062 in last attempt, 60.063 in http ioloop, 0.000 in other ioloops, connected 60.062 secs ago) Analyzing the solr logs, we got an example query: http://127.0.0.1:8983/solr/dovecot/select?wt=xml&fl=uid,score&rows=15824&sor t=uid+asc&q=%7b!lucene+q.op%3dAND%7dhdr:%3ceyJlX21faWQiOjE1ODUxMiwidF9pZCI6O DUxMCwiZV9jX2lkIjoxLCJjX3BfdF9pZCI6MywiY19pZCI6MzQ4MzIzMDUsImVfaWQiOjg3NjYwL CJlX3RfaWQiOjYsInRzIjoiMjAyMC0wNC0yNCAxOTozMjoxMS4wIn0%3d(a)edrone.me%3e&fq=%2 Bbox:8ba9c7227a37835cbaf20100b047fe86+%2Buser:tullio@dominio.com.br What I could see is that this query in question was a search in the headers and not in the body. Should this query type go through FTS Solr? Reading the documentation I understand that the standard behavior is that header searches are made by dovecot and only bodies searches are made by Solr. I saw about a recent option called fts_enforced, where it is possible to forward header searches to FTS, but I am not using this option. I would like to know if my understanding is incorrect or if there is some kind of problem with dovecot? Regards, Ricardo

1 0

Dovecot LDAP/AD with exim as mta
by Benoît PELISSIER 28 Apr '20

28 Apr '20

Hi, I have done configuration dovecot/exim/samba4ad. I use dovecot-lda not exim to deliver mail. And dovecot to authentify users. I have users with mail address on AD. When i sent mail to user mail address, its working. I have distribution group or group with mail address on AD and users as member of this groups. But when i send mail to group mail address, its not working Dovecot-lda can do it ? Or i need do it with exim (or postfix) ? Thanks Benoît

1 0

Quota calculation with MySQL backend and replication.
by Reio Remma 27 Apr '20

27 Apr '20

Hello! Over the weekend I converted our Dovecot server from Maildir quota to MySQL backed quota and then provisioned a fresh replica server and seeded it via Dovecot replication. This morning most mailboxes were over quota, reporting twice the actual usage. I'm fairly certain it's the effect of having sql backed quota with both Dovecot servers using the same database. Can anyone tell me if this is a one-off problem stemming from replicating the 2nd server from scratch or should I be aware of other quirks concerning sql backed quota and replication? Thanks a bunch! Reio

2 4

Hierarchy separator recommendation?
by Admin Beckspaced 27 Apr '20

27 Apr '20

Dear dovecot list, I'm using Maildir as mailbox format. Is there any recommendation for the namespace hierarchy separator? Currently I didn't set any. So it is the default of dot '.' I'm switiching from a rather unknown IMAP Server called DBMail (http://www.dbmail.org/) Planning to synchronize the mailboxes via imapsync (https://github.com/imapsync/imapsync) Is there anything I should be thinking / planning about? Or can i always change this namespace hierarchy separator later on? Any hints or insights are more than welcome ;) thanks & greetings Becki

7 14

User's mail encryption with mail-crypt-plugin
by André Rodier 26 Apr '20

26 Apr '20

Hello, I have a question about the "mail-crypt-plugin". If each user is having its own mail encryption key, is there a way to encrypt the key with the user password, and to decrypt it when the user logs in? I want to, if this is possible, to prevent any user, even root, to access another user's emails. Thanks, André

1 1

Creating folders
by Andrei Petru Mura 25 Apr '20

25 Apr '20

Hi, I managed to install dovecot 2.2.36 along postfix, with virtual users. When I send mails from my thunderbird client a Sent folder is created, which is mirrored on server by Maildir/cur/.Sent. If I try to create other directories the same thing happenes, adding to the created folder name . prefix. For example, created a_folder would be found on server under Maildir/cur/.b_dir. If I remove the client from thunderbird (with cached data) and reconfigure it, this folders are no longer available. How can I make them be available? Indication for right documentation pages is much appreciated. Thanks, Mura Andrei

2 5

error service quota-status
by Admin Beckspaced 25 Apr '20

25 Apr '20

dear dovecot users, trying to setup this quota-status thingy in dovecot so postfix can query the quota on the mailbox via following in main.cf smtpd_recipient_restrictions = ... check_policy_service inet:127.0.0.1:12340 I got this in my dovecot config service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 12340 } } plugin { ... quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is over quota / Mailbox ist voll quota_status_success = DUNNO ... } but whenever I try I get this error: Apr 24 20:04:32 cx20 dovecot[7236]: quota-status(beckidouche(a)domain.com)<7290><qQpiJzAqo156HAAAct2Jzg>: Error: quota check failed: Failed to get quota resource STORAGE_BYTES for INBOX: quota-dict: dict_lookup(priv/quota/storage) failed: net_connect_unix(/var/run/dovecot/dict) failed: Permission denied (euid=303(vmail) egid=303(vmail) missing +r perm: /var/run/dovecot/dict, we're not in group 489(dovecot), dir owned by 0:0 mode=0755) (reply took 0.000 secs (0.000 in dict wait, 0.000 in other ioloops, 0.000 in locks)) what am I missing here? perhaps too many hours in front of the screen today already ;) thanks a lot for your time & help greetings Becki /* ==================================================================================================================================== */ cx20: # doveconf -n # 2.3.3 (dcead646b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.3 (f018bbab) # OS: Linux 4.12.14-lp151.28.48-default x86_64 ext4 # Hostname: cx20.domain.com auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain login cram-md5 apop auth_verbose = yes auth_verbose_passwords = yes dict { quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } first_valid_uid = 300 mail_debug = yes mail_gid = vmail mail_home = /srv/maildirs/%d/%n mail_location = maildir:/srv/maildirs/%d/%n mail_plugins = " quota" mail_privileged_group = vmail mail_uid = vmail 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 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 = separator = / type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = dict:User quota::proxy::quota quota_grace = 10%% quota_rule = *:bytes=102400000 quota_rule2 = Trash:storage=+100M quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is over quota / Mailbox ist voll quota_status_success = DUNNO quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-userdb { mode = 0777 } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0666 user = postfix } } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 10042 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { group = vmail mode = 0660 user = vmail } user = vmail } ssl_cert = </etc/dehydrated/certs/webmail.domain.com/fullchain.pem ssl_cipher_list = ALL:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_options = no_compression ssl_prefer_server_ciphers = yes userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol imap { mail_plugins = " quota imap_quota" } /* ==================================================================================================================================== */

2 2

replication newbie: some beginner questions
by Stefan G. Weichinger 25 Apr '20

25 Apr '20

At a customer we run dovecot-2.3.10 along with postfix and mariadb, using postfixadmin as GUI. Now I plan to migrate to a new hardware (bigger machine) and in the same step to migrate from Gentoo Linux to Debian Linux. So I think about how to get the mailboxes from A to B. We use one UID afaik: mail_home = /home/vmail/%d/%u mail_location = maildir:~ I read about dsync and wonder: * does it make sense in this case to set up replication and let the servers replicate at first while still running on the old server? * do I have advantages over doing some rsync-jobs? * I somewhere read about not being able to sync sieve-scripts below the maildirs? We have: plugin { sieve = /home/vmail/%d/%u/sieve/.dovecot.sieve sieve_before = /etc/dovecot/sieve/global/default.sieve sieve_dir = /home/vmail/%d/%u/sieve/scripts/ sieve_extensions = +imapflags } * would the replication sync over all the existing mails/mailboxes or only the ones created *after* starting the replication? Stupid question maybe, but I just want to be sure before I screw up the installation. - sure, backups backups all the way ;-) thanks for any feedback on this! Stefan

5 13

IMAP ghost login
by Jos Chrispijn 25 Apr '20

25 Apr '20

Would it be possible to generate a user list that Dovecot permits to fetch mail from? Thanks, Joz

1 0

Dovecot Load balancing - Please Please Please help me
by Kishore Potnuru 24 Apr '20

24 Apr '20

I need your help on my issue very badly. I have the dovecot version 2.0.9 installed on RHEL linux 6.10 version. It's a single Live server. I need to add a load balancer by adding another server for resilience. I cannot upgrade the dovecot version at this time as it is a single live server. If something goes wrong, I will be in trouble. Basically the requirement/issue is: a) it's a single live dovecot POP3/IMAP server b) people are accessing their emails from microsoft outlook (by giving the same server name as IMAP and SMTP server). But more than 100000 emails will be travelled/routed. c) This server is not rebooted from couple of years. d) Now they are worried about, just in case if the server is having any issues during the reboot or if something goes wrong with the server in any case, there will be huge issues. e) They would like to create resilience by adding another server and emails will be travelled from both the servers. If one server is having any issues due to any technical issue and if it doesn't come back easily, then the emails will be travelled through the other server and there will no disturbance to the emails. atleast it travels from the other server. I have very less knowledge on this. Could you please help me providing the best solution for this. I will wait for your reply. Please please please help me. Thanks, Kishore Potnuru

4 8

Batching quota clone updates
by micah anderson 23 Apr '20

23 Apr '20

Hi, I like the quota count+clone configuration. However, I'm wondering if the cloning process could batch its updates into chunks, or spread them out over time? The clone updates happen whenever the quota is updated, typically this is fine, but when a tsunami of spam comes resulting in delivery to every user on the system, then can be quite overwhelming for a sql server to do an update for every user. Thanks! -- micah

1 0

Help with Shared Mailboxes
by Alan Stevens 23 Apr '20

23 Apr '20

dovecot version = 2.2..27 I have a running debian server ( jessie-backports ) supporting email for three different domains. It is working fine. My boss has asked me to look into using Shared folders/mailboxes - for instance, he wants selected users of Domain-A to be able to see the shared Inbox of the user "support" who is also in Domain-A. Sorry if my questions are basic, but here goes:- 1. Can I simply change the relevant dovecot configuration files and introduce Shared mailboxes into an already running system? Very basically, add the imap-acl plugin, the shared namespace, the dict file and restart dovecot? 2. If I can do this, would it wipe out the tens of thousands of existing emails I have on the system now? i.e. Does Sharing have to be introduced when new email server is being brought up? Can it be added on-the-fly to my working server? Would the emails in /var/mail/vmail/Domain-A/alan/mail seemlessly populate /var/mail/vmail/Domain-A/Shared/alan/mail after making such changes? 3. If adding the Sharing to my running system is possible, can I add it on only one of my three domains? I have a test domain with one user. My principle domain ( Domain-A ) has many users, and as I stated previously, very very many stored emails. Emails I absolutely cannot afford to lose. Any insights are appreciated. Alan Stevens ---||--- alanrstevens(a)yahoo.com https://www.linkedin.com/in/alanrstevens

1 0

Testing COI
by lists＠mlserv.org 23 Apr '20

23 Apr '20

Hi, I am playing around with the COI plugin and try to get things working. I followed the Dovecot docs and also got the source from Github (dovecot/coi). I have compiled and installed coi successfully. IMAP seems to be fine, but LMTP has some errors in the logs, so I removed imap_coi for the moment: Apr 23 17:05:16 mx dovecot: lmtp(10752): Fatal: Couldn't load required plugin /usr/lib64/dovecot/lib11_imap_coi_plugin.so: dlopen() failed: /usr/lib64/dovecot/lib11_imap_coi_plugin.so: undefined symbol: client_add_capability I am running Dovecot 2.3.10 and coi at the same version. Am I missing something here? Thanks in advance Christian -- Rößner-Network-Solutions Karl-Bröger-Str. 10, 36304 Alsfeld Fax: +49 6631 78823409, Mobil: +49 171 9905345 USt-IdNr.: DE225643613, https://roessner.website PGP fingerprint: 658D 1342 B762 F484 2DDF 1E88 38A5 4346 D727 94E5

2 2

Re-to-archived-thread: Dict issue with PostgreSQL for last_login plugin (duplicate key)
by lists＠mlserv.org 23 Apr '20

23 Apr '20

Hi, I have tried to implement last_login with PostgreSQL and I found an old thread from June 2019. I have found a simple solution that I want to share with you: I followed the instructions on how to set up a last_login on the official documentation. Therefor I creates a very simple table having userid and last_login fields. Added plugin and dict information. I received the duplicate key errors and I did this trick for now, which seems to solve this issue: CREATE OR REPLACE RULE insert_to_update AS ON INSERT TO users WHERE EXISTS (SELECT userid FROM users WHERE userid = NEW.userid) DO INSTEAD UPDATE users SET last_login = NEW.last_login WHERE userid = NEW.userid With this rule in place, INSERTs are changed to UPDATEs, if a userid entry already exists. No ned to patch code. Feel free to comment :-) Christian Thread online: https://www.dovecot.org/list/dovecot/2019-May/115921.html -- Rößner-Network-Solutions Karl-Bröger-Str. 10, 36304 Alsfeld Fax: +49 6631 78823409, Mobil: +49 171 9905345 USt-IdNr.: DE225643613, https://roessner.website PGP fingerprint: 658D 1342 B762 F484 2DDF 1E88 38A5 4346 D727 94E5

1 0

Recommendations on intrusion prevention/detection?
by Johannes Rohr 23 Apr '20

23 Apr '20

Dear all, what are the key strategies for intrusion prevention and detection with dovecot, apart from installing fail2ban? It is a pity that the IMAP protocol does not support 2 factor authentication, which seems to stop 90% of intrusion attempts in their tracks. Without it, if someone has obtained your password and reads your mail without modifying it, you will hardly ever notice. Is there a reasonable way of detecting and preventing logins from unusual IP ranges? Or are there other strategies you would recommend? Cheers, Johannes

10 13

Dovecot and thunderbird authentication issue?
by David Mehler 23 Apr '20

23 Apr '20

Hello, I'm using Dovecot 2.2, Postfix 3.5, and am atempting to get the latest version of Thunderbird to work. I tried account autoconfig which did not work, so I had to manually enter information and correct other information. On my server dovecot supports plane and login authentication methods but only over starttls i've got a letsencrypt certificate. My thunderbird configuration looks good, right hosts for incoming and outgoing mail, right ports, 143 starttls, and 587 smtp submission, and thunderbird has the authentication method set for normal password. This I interpreted to mean thunderbird is going to starttls then send the username and password. Thunderbird is giving me this error: imap server does not support the selected authentication method I realize this is vague, any suggestions? Thanks. Dave.

2 2

sieve question
by mj 23 Apr '20

23 Apr '20

Hi, We are trying to auto-reply to emails that still use one of our old domains. To do this, I have setup a catch-all mailbox for anything sent to that old domain using postfix virtual: @old.domain.com catch-all(a)new.domain.com Then I defined a sieve script for catch-all(a)new.domain.com, like: > require ["vacation"]; > if allof ( not exists ["list-help", "list-unsubscribe", "list-subscribe", "list-owner", "list-post", "list-archive", "list-id", "Mailing-List"] ) > > { vacation text: > This message is sent automatically, and your message has NOT been read nor forwarded. > > Please update your addressbooks! > > All the best! :-) > . > ; > } However, sieve never sends any auto-reply, because it logs: > discarding vacation response for implicitly delivered message; no > known (envelope) recipient address found in message headers > (recipient=<catch-all(a)new.domain.com>, and no additional `:addresses' > are specified) I have googled this, but adding :addresses in this case will not work, as we are trying to answer (basically) emails sent to any email addresses sent to that domain, and thus I cannot define specific :addresses Can anyone suggest what to do here? Thanks and stay healthy! MJ

5 11

Still interested in SMTPUTF8 support
by David Bürgin 22 Apr '20

22 Apr '20

I haven’t seen this term on the mailing list for a while. I don’t know if you’re tracking this somewhere, in any case I’m curious if you are still planning to add support for SMTPUTF8. Cheers,

2 1

Dovecot 2.3.10 fails to start due to missing dependency
by Jacob Shea 21 Apr '20

21 Apr '20

Greetings, I installed Dovecot 2.3.10 on my Centos 7.7.1908 server, however it fails startup. This is a fresh/default install, meaning all the configs are default, downloaded from the dovecot.repo. Here is my PasteBin: https://pastebin.com/376UQFLs ### Error Log, copied from Journalctl print out ### Apr 20 21:10:01 server101 systemd[1]: Started Session 955 of user root. Apr 20 21:10:01 server101 CROND[8057]: (root) CMD (/usr/lib64/sa/sa1 1 1) Apr 20 21:10:18 server101 polkitd[1293]: Registered Authentication Agent for unix-process:8065:44125203 (system bus name :1.2058 [/usr/bin/pkttyagent --notify-fd 5 --fallback], object path /org/freedesktop/Polic Apr 20 21:10:18 server101 systemd[1]: Starting One-time Dovecot init service... Apr 20 21:10:18 server101 systemd[1]: dovecot-init.service: main process exited, code=exited, status=2/INVALIDARGUMENT Apr 20 21:10:18 server101 systemd[1]: Failed to start One-time Dovecot init service. Apr 20 21:10:18 server101 systemd[1]: Dependency failed for Dovecot IMAP/POP3 email server. Apr 20 21:10:18 server101 systemd[1]: Job dovecot.service/start failed with result 'dependency'. Apr 20 21:10:18 server101 systemd[1]: Unit dovecot-init.service entered failed state. Apr 20 21:10:18 server101 systemd[1]: dovecot-init.service failed. Apr 20 21:10:18 server101 polkitd[1293]: Unregistered Authentication Agent for unix-process:8065:44125203 (system bus name :1.2058, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8 lines 6106-6158/6158 (END) ### Linux Server Version ### [root@server101 log]# cat /etc/centos-release CentOS Linux release 7.7.1908 (Core) ### Dovecot Version ### Installed Packages Name : dovecot Arch : x86_64 Epoch : 2 Version : 2.3.10 Release : 2 Size : 15 M Repo : installed From repo : dovecot-2.3-latest Summary : Secure imap and pop3 server URL : http://www.dovecot.org/ License : MIT and LGPLv2 Description : Dovecot is an IMAP server for Linux/UNIX-like systems, written with security : primarily in mind. It also contains a small POP3 server. It supports mail : in either of maildir or mbox formats. : : The SQL drivers and authentication plug-ins are in their subpackages. ---- Any help or suggestions are appreciated. Sincerely, Jacob S.

2 4

Unicode in mail addresses
by Jasper Michalke 21 Apr '20

21 Apr '20

Dear Dovecot people, I have a question concering Unicode support: Does Dovecot support Unicode characters in both parts of the mail address? E.g. dфҿ@.tld Thank you for any reply, The one with the braid | Der mit dem Zopf

1 0

Doc pointer request
by David Favor 18 Apr '20

18 Apr '20

At one point seems like I found a write up in the Dovecot docs about having Dovecot directly listen on port 25 using Opportunistic TLS along with port 587 authentication, so only Dovecot was required to handle incoming email. Said another way, no requirement for Sendmail, or Postfix or EXIM. Just straight up Dovecot. If I'm remembering correctly, someone point me to the correct docs for this setup. Thanks!

4 4

setup sdbox per user with userdb
by Maciek Jackowski 18 Apr '20

18 Apr '20

Hi welcome I want to set some virtual users with sdbox mail_location so I return in password_query and user_query extra field mail which contains sdbox:/var/mail/example.com/user:INDEX=/var/mail_indexes/example.com/user:A… and then when i send email to user(a)example.com I see all sdbox dirs created but when i login with thunderbird IMAP - Maildir structure is always created with an empty INBOX I tried to override namespace inbox with mail AS "namespace/inbox/location" with content sdbox:/var/mail/example.com/user:INDEX=/var/mail_indexes/example.com/user:A… but nothin change what am I doing wrong? regards

2 1

Problems with compressed mail_attachment_dir
by Claudio Cuqui 17 Apr '20

17 Apr '20

Hi there ! I´m using dovecot 2.3.10 (manually compiled on Centos 8 x86_64 - fully updated), XFS filesystem, with mdbox and a separated compressed attachment directory: mail_attachment_fs = sis compress:lz4:6:posix mail_attachment_hash = %{sha256} mail_attachment_dir = /ATTACHMENTS I'm using dovecot LDA (for mail delivery). Everything works fine with the delivery and compression. The first test, I send one tar file with 7Mb. It was correctly compressed (2791959) and stored in mail_attachment_dir. But when I tried to access it via IMAP ( thunderbird/evolution) I got this message on dovecot logs: Error: Mailbox INBOX: UID=1: read(attachments-connector(zlib(/mailboxes/domain/h1/h2/test/mdbox/storage/m.1))) failed: read(/ATTACHMENTS/19/53/19536d7b190e5ba68337625a29e7b8a6129a2dfb5935eafa424ba4da2a878532-2e9c960b7dd2985e245e0000f484007a[base64:19 b/l]) failed: Stream is smaller than expected (2791959 < 7981633) (FETCH BODY[]) The 7981633 is the original attachment size. 2791959 is the compressed size (on attachment directory). I also see 2791959 in mail message size field (instead of 7981633 that is the original size BEFORE compression) in Thunderbird. In Evolution was not even possible to open the message. Thunderbird allow me even download the attachment, but the downloaded file is corrupted. Looks like dovecot is showing the properties of the compressed attachment instead of the proprerties of the original attachment (before compression). I'm also using imap_zlib and zlib plugins: plugin { zlib_save_level = 6 # 1..9; default is 6 zlib_save = lz4 # or bz2, xz, lz4 or zstd } protocol imap { # Space separated list of plugins to load (default is global mail_plugins). mail_plugins = $mail_plugins imap_quota imap_zlib } # Space separated list of plugins to load for all services. Plugins specific to # IMAP, LDA, etc. are added to this list in their own .conf files. mail_plugins = quota fts fts_xapian mailbox_alias zlib This happens with every message that exceed mail_attachment_min_size (in my case, 32k) and is stored at mail_attachment_dir = /ATTACHMENTS When I comment: mail_attachment_dir = /ATTACHMENTS, everything works fine (compression included) with imap viewing on Thunderbird/Evolution. Please, let me know if you need further information or have any suggestions about this issue. TIA, Claudio

1 0

Headsup on feature removal
by Aki Tuomi 17 Apr '20

17 Apr '20

Hi! Dovecot is now a nearly 20 year old product, and during that time it has accumulated many different features and plugins in its core repository. We are starting to gradually remove some of these parts, which are unused, untested or deprecated. We will provide advance notification before removing anything. To start, the following features are likely to be removed in next few releases of Dovecot. - Authentication drivers: vpopmail, checkpassword, bsdauth, shadow, sia - Password schemes: HMAC-MD5, RPA, SKEY, PLAIN-MD4, LANMAN, NTLM, SMD5 - Authentication mechanisms: ntlm, rpa, skey - Dict drivers: memcached, memcached-ascii (use redis instead) - postfix postmap support - autocreate & autosubscribe plugins (use built-in auto=create/subscribe setting instead) - expire plugin (use built-in autoexpunge setting) - fts-squat plugin - mailbox alias plugin - mail-filter plugin - snarf plugin - xz compression algorithm For the authentication drivers that are being removed, we suggest using Lua as a replacement. See https://doc.dovecot.org/configuration_manual/authentication/lua_based_authe… For information about converting between password schemes, see https://wiki2.dovecot.org/HowTo/ConvertPasswordSchemes If you are using any of these features, please start preparing for their removal in the near future. Features will begin to be dropped as of v2.3.11. Additionally, the mbox format will no longer receive new development. It will still be maintained, however its use beyond migrations and other limited use cases will be discouraged. Please contact us via the mailing list if you have any questions. Regards, Dovecot Team

15 23

Bug maybe already resolved? Sieve rule does not accept special use folder names
by Marc Roos 17 Apr '20

17 Apr '20

Sieve rule fileinto Spam fails, while fileinto Junk succeeds mailbox Spam { special_use = \Junk auto = no } dovecot-pigeonhole-2.2.36-3.el7_7.1.x86_64 dovecot-2.2.36-3.el7_7.1.x86_64 CentOS Linux release 7.7.1908 (Core

2 7

Dovecot Failed to initialize SSL server context
by Adam Raszkiewicz 17 Apr '20

17 Apr '20

I'm trying to configure TLS for Dovecot 2.3 but after setting all things up I'm not able to start Dovecot: Apr 16 20:56:02 master: Info: Dovecot v2.3.9.3 (9f41b88fa) starting up for imap, pop3, lmtp (core dumps disabled) Apr 16 20:56:25 auth: Debug: Loading modules from directory: /usr/lib/dovecot/auth Apr 16 20:56:25 auth: Debug: Module loaded: /usr/lib/dovecot/auth/lib20_auth_var_expand_crypt.so Apr 16 20:56:25 auth: Debug: Read auth token secret from /usr/var/run/dovecot/auth-token-secret.dat Apr 16 20:56:25 auth: Debug: auth client connected (pid=30750) Apr 16 20:56:25 imap-login: Error: Failed to initialize SSL server context: Can't load SSL private key: Key is for a different cert than ssl_cert: user=<>, rip=::1, lip=::1, secured, session=<JKh/qm6j/rMAAAAAAAAAAAAAAAAAAAAB> Apr 16 20:56:25 imap-login: Info: Disconnected: TLS initialization failed. (no auth attempts in 0 secs): user=<>, rip=::1, lip=::1, secured, session=<JKh/qm6j/rMAAAAAAAAAAAAAAAAAAAAB> Apr 16 20:57:47 master: Fatal: Dovecot is already running with PID 30727 (read from /usr/var/run/dovecot/master.pid) Apr 16 20:57:47 master: Warning: Killed with signal 15 (by pid=30823 uid=0 code=kill) I have created a brand new key pair, csr and the cert but still it complains to start. Any thoughts on that? Thanks, Adam

2 1

How to specify pattern for share folder using ACL vfile
by Adam Raszkiewicz 15 Apr '20

15 Apr '20

My `90-acl.conf` file looks like: plugin { #acl = vfile:/etc/dovecot/global-acls:cache_secs=300 #acl = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext acl = vfile } # To let users LIST mailboxes shared by other users, Dovecot needs a # shared mailbox dictionary. For example: plugin { #acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes acl_shared_dict = proxy::acl } When ACLs were set for particular mailbox I can see that dovecot-acl file were created but I have no idea how to specify a pattern for shared folder like is in the `dovecot-dict-sql.conf.ext` map { pattern = shared/shared-boxes/user/$to/$from table = user_shares value_field = dummy fields { from_user = $from to_user = $to } } My goal is to control how it appears on the client site. As for now is as `shared/user@domain/folder/` but I have no idea where it is defined. Thanks, Adam

1 0

Removal of metrics.dovecot.org
by Aki Tuomi 15 Apr '20

15 Apr '20

Hi! metrics.dovecot.org will be removed by end of April. It's not really used that much and it's not compatible with new style metrics. --- Aki Tuomi Open-Xchange oy

1 0

got a listener on 993
by David Mehler 15 Apr '20

15 Apr '20

Hello, Before I get in to my question is ssl on 993 or starttls on 143 better from a security perspective? I've noticed that I've got a dovecot listener on port 993, below is my doveconf -n output I don't have an imaps listener uncommented should I do so and set it's port to 0? Will that disable the 993 listener? Thanks. Dave. # 2.3.10 (0da0eff44): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (bf8ef1c2) # OS: FreeBSD 12.1-RELEASE-p2 amd64 # Hostname: hostname.example.com auth_cache_size = 10 M auth_default_realm = example.com auth_mechanisms = plain login auth_realms = example.com dict { lastlogin = mysql:/usr/local/etc/dovecot/dovecot-last-login.conf } first_valid_gid = 2100 first_valid_uid = 2100 hostname = hostname.example.com imap_client_workarounds = delay-newhostname tb-extra-hostnamebox-sep tb-lsub-flags imap_idle_notify_interval = 1 mins last_valid_gid = 2100 last_valid_uid = 2100 lda_hostnamebox_autocreate = yes lda_hostnamebox_autosubscribe = yes lda_original_recipient_header = X-Original-To listen = xxx.xxx.xxx.xxx lmtp_rcpt_check_quota = yes log_timestamp = "%Y-%m-%d %H:%M:%S " hostname_access_groups = vhostname hostname_fsync = never hostname_gid = vhostname hostname_home = /var/vhostname/hostnameboxes/%d/%n hostname_location = dbox:~/hostname hostname_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt hostname_privileged_group = vhostname hostname_server_admin = hostnameto:postmaster@example.com hostname_uid = vhostname managesieve_notify_capability = hostnameto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment hostnamebox date index ihave duplicate mime foreverypart extracttext spamtest spamtestplus virustest editheader imapflags notify imapsieve vnd.dovecot.imapsieve namespace { location = sdbox:/var/vhostname/public/:CONTROL=~/hostname/public:INDEX=~/hostname/public prefix = Public/ separator = / subscriptions = yes type = public } namespace { hidden = no list = yes location = hostnamedir:/var/vhostname/shared/office/.hostnamedir:CONTROL=~/.hostnamedir/control/office:INDEX=~/.hostnamedir/index/office prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { inbox = yes location = hostnamebox Drafts { auto = subscribe special_use = \Drafts } hostnamebox Sent { auto = subscribe special_use = \Sent } hostnamebox Spam { auto = subscribe autoexpunge = 30 days special_use = \Junk } hostnamebox Trash { auto = subscribe autoexpunge = 30 days special_use = \Trash } prefix = separator = / type = private } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile:/usr/local/etc/dovecot/global-acls:cache_secs=300 fts = lucene fts_autoindex = yes fts_autoindex_exclude = \Junk fts_autoindex_exclude2 = \Trash fts_autoindex_exclude3 = \Spam fts_autoindex_max_recent_msgs = 80 fts_index_timeout = 90 fts_lucene = whitespace_chars=@. normalize no_snowball imapsieve_hostnamebox1_before = file:/var/vhostname/sieve/global/learn-spam.sieve imapsieve_hostnamebox1_causes = COPY imapsieve_hostnamebox1_name = Spam imapsieve_hostnamebox2_before = file:/var/vhostname/sieve/global/learn-ham.sieve imapsieve_hostnamebox2_causes = COPY imapsieve_hostnamebox2_from = Spam imapsieve_hostnamebox2_name = * last_login_dict = proxy::lastlogin last_login_key = # hidden, use -P to show it hostname_crypt_curve = prime256v1 hostname_crypt_global_private_key = # hidden, use -P to show it hostname_crypt_global_public_key = # hidden, use -P to show it hostname_crypt_save_version = 2 hostname_log_events = delete undelete expunge copy hostnamebox_delete hostnamebox_rename hostname_log_fields = uid box msgid size quota = count:User quota quota_exceeded_message = Storage quota for this account has been exceeded, please try again later. quota_grace = 10%% quota_rule2 = Trash:ignore quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 hostnamebox 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 = file:/var/vhostname/sieve/%d/%n/scripts;active=/var/vhostname/sieve/%d/%n/active-script.sieve sieve_before = /var/vhostname/sieve/global/spam-global.sieve sieve_extensions = +notify +imapflags +spamtest +spamtestplus +virustest +editheader 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 = /usr/bin 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 = /var/vhostname/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 %n postmaster@%d welcome_wait = yes } postmaster_address = postmaster(a)example.com protocols = imap lmtp sieve sendhostname_path = /usr/local/sbin/sendhostname service auth-worker { user = vhostname } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vhostname mode = 0666 user = vhostname } } service dict { unix_listener dict { mode = 0600 user = vhostname } user = root } service imap-login { inet_listener imap { port = 143 } process_min_avail = 1 } service imap { executable = imap } service lmtp { executable = lmtp unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { address = 172.16.21.3 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 = vhostname mode = 0660 user = vhostname } user = vhostname } service stats { unix_listener stats-reader { group = vhostname mode = 0660 user = vhostname } unix_listener stats-writer { group = vhostname mode = 0660 user = vhostname } } service welcome { executable = script /usr/local/etc/dovecot/welcome.sh unix_listener welcome { user = vhostname } user = vhostname } ssl = required ssl_cert = </usr/local/etc/ssl/acme.sh/example.com/fullchain.crt ssl_cipher_list = EECDH+AESGCM:EDH+AESGCM ssl_curve_list = P-256 ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_options = no_ticket ssl_prefer_server_ciphers = yes userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { hostname_fsync = optimized hostname_plugins = acl fts fts_lucene hostname_log notify quota trash virtual welcome zlib hostname_crypt sieve } protocol lda { hostname_fsync = optimized hostname_plugins = acl fts fts_lucene hostname_log notify quota trash virtual welcome zlib hostname_crypt sieve } protocol imap { hostname_max_userip_connections = 20 hostname_plugins = acl fts fts_lucene hostname_log notify quota trash virtual welcome zlib hostname_crypt imap_acl imap_quota imap_sieve imap_zlib last_login quota welcome } protocol sieve { info_log_path = /var/log/dovecot/dovecot-sieve.log log_path = /var/log/dovecot/dovecot-sieve-errors.log }

6 6

replication_full_sync_interval
by Ivo 14 Apr '20

14 Apr '20

Default value for replication_full_sync_interval is 24 hours. How is it then possible to get doveadm replicator status results like this one username priority fast sync full sync success sync failed someuser none 24:23:39 24:23:39 24:23:37 - # doveconf -a | grep replication_full_sync_interval replication_full_sync_interval = 1 days # dovecot --version 2.2.33.2 (d6601f4ec)

2 2

Variable expansion in password field
by Simone Lazzaris 14 Apr '20

14 Apr '20

Hi list! I've recently updated a small dovecot cluster from 2.2.29 to 2.3.10. I've found an issue with variable expansion. My user/password database is on a mysql table, with password saved in plain text field. The cluster receives mail via lmpt and users fetch them via imap. On the 2.2.29 version, no issues. After the upgrade, I've found some lines in the log: Apr 14 14:36:05 archive-front1 dovecot: lmtp(19671, fakeusername(a)fakedomain.com) Error: lmtp-server: conn 212.183.164.212:34642 [4]: rcpt fakeusername(a)fakedomain.com: Failed to initialize user: Failed to expand plugin setting password = 'sd78F6aS9%Lggxf': Unknown variable '%g' (I've faked /some/ information for obvious reasons, but I've kept the password after the '%' sign). Apparently, dovecot 2.3.10 is trying to expand some variables IN the password field. I'm trying to fool him expanding the '%' into '%%' on the password query, but without luck... I can also contact the user and make him choose a different password, without '%'. Anyway, I feel that this behaviour should be seen as a bug. Am I missing something? -- Simone Lazzaris QCom SpA

2 1

%d ignored from auth-passwdfile.conf.ext configuration file
by Andrei Petru Mura 13 Apr '20

13 Apr '20

I try to configure dovecot with virtual users. I put my users file in folder /etc/dovecot/my_domain_name/users. My auth-passwdfile.conf.ext file looks like this: passdb { driver = passwd-file args = username_format=%n /etc/dovecot/%d/users } When I try to log in, I get this: dovecot: auth: Error: passwd-file(test,some.ip.addr.here,<rQT+ziijGE1tpoAB>): stat(/etc/dovecot//users) failed: No such file or directory As you can see, %d isn't interpreted. Why is this happening? Any hints? Thanks, Mura Andrei

2 3

Missing permissions
by Andrei Petru Mura 13 Apr '20

13 Apr '20

Hi, Dovecot version 2.2.36 In log files I get this error: dovecot: imap(test): Namespace '': mkdir(/home/mail/domain/test/Maildir) failed: Permission denied (euid=1005(vmail) egid=1005(vmail) missing +w perm: /home/mail/domain, UNIX perms appear ok (ACL/MAC wrong?)) My authentication configuration is this: passdb { driver = passwd-file args = username_format=%n /etc/dovecot/users } userdb { driver = static args = uid=vmail gid=vmail home=/home/mail/domain/%n username_format=%n /etc/dovecot/users } /home/mail/domain/test directory is owned by vmail user. How to fix this? Mura Andrei

4 12

doveadm backup from gmail with imapc
by Ben Mulvihill 11 Apr '20

11 Apr '20

I am trying to backup a gmail account (not the one I am writing from) to dovecot, using doveadm-backup and imapc, but am having ssl connection problems. ted@expectation:~# doveadm backup -D -R -u ted imapc: dsync(ted): Info: imapc(imap.gmail.com:993): Connected to 74.125.71.108:993 (local 10.7.1.179:53852) dsync(ted): Warning: imapc(imap.gmail.com:993): Server disconnected unexpectedly: SSL_connect() failed: error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure: SSL alert number 40 - reconnecting (delay 0 ms) dsync(ted): Info: imapc(imap.gmail.com:993): Connected to 74.125.71.109:993 (local 10.7.1.179:59052) dsync(ted): Error: imapc(imap.gmail.com:993): Server disconnected unexpectedly: SSL_connect() failed: error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure: SSL alert number 40 - disconnecting dsync(ted): Error: User initialization failed: imapc: Login to imap.gmail.com failed: Disconnected from serv I am using dovecot version 2.2.33.2 on ubuntu, with the configuration below. I have also enabled "allow access from unsecure apps" in my gmail settings. My first thought looking at the error messages was has that perhaps doveadm-backup was trying to connect with ssl3, which is no longer supported by gmail or anyone else nowadays. But apparently the ssl3_read_bytes function in openssl also handles tls, so the reference to ssl3 in the message is misleading, and the real problem must be elsewhere. If anyone can help me debug this I'd be grateful. Many thanks, Ben root@expectation:/etc/dovecot# doveconf -N # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: Linux 4.15.0-91-generic x86_64 Ubuntu 18.04.4 LTS auth_mechanisms = plain imapc_features = rfc822.size gmail-migration fetch-headers imapc_host = imap.gmail.com imapc_password = # hidden, use -P to show it imapc_port = 993 imapc_ssl = imaps imapc_ssl_verify = no imapc_user = MY_GMAIL_ADDRESS mail_location = maildir:~/Maildir mail_prefetch_count = 20 mail_privileged_group = mail 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 { driver = pam name = } protocols = " imap" ssl = yes ssl_cert = </etc/dovecot/private/dovecot.pem ssl_cipher_list = ALL:!LOW:!SSLv2:!SSLv3:!EXP:!aNULL ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv3 userdb { driver = passwd name = }

6 13

doveadm replicator command
by Ivo 09 Apr '20

09 Apr '20

Can someone please explain to me what do commands "doveadm replicator add" and "doveadm replicator remove" really do. According to https://wiki.dovecot.org/Tools/Doveadm/Replicator they "Add the specified user(s) to the replicator." and "Remove the specified user from replicator.". Do they really do that? Since the default list of users for replication comes from doveadm user '*' (https://wiki.dovecot.org/Replication) I tried removing one user (e.g. xyz) from replication by using "doveadm replicator remove xyz" and it didn't work. Namely, after entering that command the only thing that I noticed is that "doveadm replicator status xyz" does not return any information. BUT, as soon as one mail arrives for that user "doveadm replicator status xyz" displays valid information and mail is replicated. Thanks in advance for any reply. # dovecot --version 2.2.33.2 (d6601f4ec)

1 0

doveadm backup into IMAP folder
by Gionatan Danti 09 Apr '20

09 Apr '20

Hi all, I am migrating a number of account from an old domain to a new one. I would like to store all imported email from the old domain under a specific IMAP folder. For example, if having test(a)domain.old, I would like to import all old email to test(a)domain.new/fromold. While I succeeded using doveadm backup / dsync to successfully replicate the old mailbox to the new one, I am unable to store all imported mail under a specific folder. So, I have some questions: - can the above be done? - if yes, can you confirm that email outside the specific destination folder will not be touched/deleted/whatever by doveadm backup? - does a "dry-run" option exists for doveadm backup / dsync? Thank you all. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it [1] email: g.danti(a)assyoma.it - info(a)assyoma.it GPG public key ID: FF5F32A8

2 1

alternatives for imapproxy
by Maciej Milaszewski 08 Apr '20

08 Apr '20

Hi System debian 8.11 and dovecot-2.2.36.4 My webmail is roundcube with imapproxy. I have one problem. My dovecot servers is are in a cluster with keepalived like: dovecot1----VIP-IP--------dovecot2 All works fine I have a problem with imapproxy when a server dovecot1 had a problem (kernel panic sic!) Keepalived works perfecty and moved VIP to dovecot2 - all works fine for normal users but imapproxy gave a timeout and webmail clinet cannot connect what do you recommend alternative to imapproxy ? I use imapproxy because is fast ...

2 2

Warning: Failed to do incremental sync
by Laura Smith 08 Apr '20

08 Apr '20

Setup dovecot sync along the lines of (https://wiki2.dovecot.org/Replication) I am doing one way replication. The initial full replication happened without issue, but now I'm seeing these errors on the slave server: doveadm: Warning: /data/mail/foo/bar/Maildir/dovecot-uidlist: Duplicate file entry at line 26397: 1562173159.M215923P17350.mxp,S=2290,W=2339 (uid 143128 -> 143142) Warning: Failed to do incremental sync for mailbox Sent Messages, retry with a full sync (Modseq 1766 no longer in transaction log (highest=17617, last_common_uid=17559, nextuid=17560)) Warning: Failed to do incremental sync for mailbox INBOX, retry with a full sync (Modseq 2540 no longer in transaction log (highest=13870, last_common_uid=19912, nextuid=19913)) I guess dovecot automatically tries a full replication because eventually the messages get pushed and "sync failed" status changes from 'y' to '-'

2 1

Dovecot "User-Agent" equivalent
by Plutocrat 08 Apr '20

08 Apr '20

Hi, I was trying to debug an IMAP connection problem. The client accesses an account via webmail, mobile phone, and desktop. I was wondering if there was a way of determining which of these they were using at a given time. My googling turned up the following settings in the imap{} section: protocol imap { imap_id_log = * imap_id_send = "name" * "version" * } ... but setting these didn't seem to log any more information that I could use. Have I misunderstood the usage of these settings? Shouldn't they log a "user agent" type information in /var/log/dovecot.log ? Or are there any other ways I can get information on the client? P.

1 0