- dovecot - dovecot.org

Ability to reject invalid client certificate at TLS handshake time
by Gert van Dijk 02 May '21

02 May '21

Hi, After a bit of struggling I've been able to set up TLS client certificate authentication with Dovecot for both IMAP and Submission. Users are required to present a valid certificate, cool so far! What I noticed however on non-StartTLS listeners IMAPS (993) and SMTPS (465), is that during the TLS handhake presenting a valid client certificate is seemingly optional and is only checked later at time of protocol-level login (external auth in my case). I'd like to change that for security purposes and also a bit of obscurity. Not having the ability to interact with Dovecot on protocol level lowers the attack vector as well as the ease of checking my network security. Also, it would prevent (anonymous) network scanners to easily detect what kind of service is running on the port as they can see the IMAP/SMTP banner without presenting a valid TLS client certificate currently. Is it possible in any version of Dovecot to configure it to set up a TLS server listening context that requires a handshake with a valid client certificate? I'm using Dovecot 2.3.4.1 (actual Debian Buster version 2.3.4.1-5+deb10u6), but willing to upgrade to any newer version when this is offered. Going through some newer revisions changelog this seems not the case, so I didn't spend time on upgrading yet. Relevant config snippets for IMAP authenticating proxy that I use (something similar for Submission): # Opens 143 on StartTLS and 993 in wrapped TLS-only mode. # Only 993 is exposed to the internet. protocols = imap passdb { driver = static args = proxy=y host=10.1.2.3 port=1143 pass=masterpass nopassword=y } auth_username_format = %n ssl = required ssl_cert = </etc/dovecot-ssl/cert.crt ssl_key = </etc/dovecot-ssl/key.pem ssl_prefer_server_ciphers = yes ssl_min_protocol = TLSv1.2 ssl_cipher_list = [omitted for brevity] ssl_ca = </etc/dovecot-ssl/client-ca.crt ssl_verify_client_cert = yes # Required to set this to 'no' if no CRL is set up yet ssl_require_crl = no auth_ssl_require_client_cert = yes # Take the username from the client certificate (CN) auth_mechanisms = external auth_ssl_username_from_cert = yes ssl_cert_username_field = commonName Current behaviour from a client when deliberately not presenting a client certificate shows the IMAP banner: $ openssl s_client -connect myserver:993 CONNECTED(00000003) --- Certificate chain 0 [...] --- Server certificate -----BEGIN CERTIFICATE----- [...] --- Acceptable client certificate CA names C = NL, O = Gert van Dijk, [...] --- SSL handshake has read 1096 bytes and written 413 bytes Verification: OK --- New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384 Server public key is 384 bit Secure Renegotiation IS NOT supported Compression: NONE Expansion: NONE No ALPN negotiated Early data was not sent Verify return code: 0 (ok) --- * OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ LOGINDISABLED AUTH=EXTERNAL] Dovecot (Debian) ready. Expected: TLS alert during handshake, e.g. on my Apache TLS client certificate required configured instance: $ openssl s_client -connect myserver:443 139676785239360:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure:../ssl/record/rec_layer_s3.c:1543:SSL alert number 40 IOW, I was hoping for something like this to exist: ssl_verify_client_cert = required OR service imap-login { inet_listener imaps { port = 993 ssl = client-cert-required } } Thanks, Gert

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Re: Sieve daemon errors? (Part 1 of 2, Pt 2 to follow when Pt 1 resolved)
by Dan Egli 01 May '21

01 May '21

Ask and ye shall receive: # dovecot -n # 2.3.13 (89f716dc2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.13 (cdd19fe3) # OS: Linux 5.11.16-gentoo-x86_64 x86_64 Gentoo Base System release 2.7 xfs # Hostname: jupiter.newideatest.site auth_debug = yes auth_mechanisms = plain login auth_socket_path = /run/dovecot/auth-userdb auth_verbose = yes debug_log_path = /var/log/dovecot/debug.log default_vsz_limit = 1 G disable_plaintext_auth = no first_valid_uid = 114 hostname = jupiter.newideatest.site info_log_path = /var/log/dovecot/info.log log_path = /var/log/dovecot/error.log mail_debug = yes mail_gid = exim4u mail_location = maildir:/var/mail/%d/%n/Maildir:INDEX=/var/mail/indexes/%d/%1n/% n mail_plugins = fts mail_privileged_group = mail mail_server_admin = <redacted> mail_uid = exim4u managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacati on subaddress comparator-i;ascii-numeric relational regex imap4flags copy includ e variables body enotify environment mailbox date index ihave duplicate mime for everypart extracttext imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { fts_autoindex = yes fts_autoindex_exclude = \Junk fts_autoindex_exclude2 = \Trash fts_autoindex_exclude3 = \Drafts fts_autoindex_exclude4 = \Spam fts_enforced = yes imapsieve_mailbox1_before = file:/var/lib/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/var/lib/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * plugin = fts managesieve sieve sieve = file:%h/sieve;active=%h/.dovecot.sieve sieve_Dir = ~/sieve sieve_execute_bin_dir = /usr/lib/dovecot/sieve-execute sieve_filter_bin_dir = /usr/lib/dovecot/sieve-filter sieve_global_dir = /var/lib/dovecot/sieve/ sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment sieve_global_path = /var/lib/dovecot/sieve/default.sieve sieve_pipe_bin_dir = /var/lib/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms } postmaster_address = postmaster(a)newideatest.site service auth { unix_listener auth-client { mode = 0600 user = exim4u } unix_listener auth-userdb { group = exim4u mode = 0777 user = exim4u } } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 4190 } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 vsz_limit = 64 M } service managesieve { process_limit = 1024 } service stats { unix_listener stats-reader { mode = 0777 user = exim4u } unix_listener stats-writer { mode = 0777 user = exim4u } } service submission-login { inet_listener submission { port = 2587 } } ssl_cert = </etc/letsencrypt/live/newideatest.site/fullchain.pem ssl_client_ca_dir = /etc/pki/tls/exim_tls/ ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { args = uid=exim4u gid=exim4u home=/var/mail/%Ld/%Ln driver = static } verbose_ssl = yes protocol lmtp { info_log_path = /var/log/dovecot/lmtp.log log_path = /var/log/dovecot/lmtp-errors.log mail_plugins = fts sieve sieve postmaster_address = postmaster(a)newideatest.site } protocol lda { info_log_path = /var/log/dovecot/lda.log log_path = /var/log/dovecot/lda-errors.log mail_plugins = fts sieve sieve } protocol imap { mail_plugins = fts imap_sieve } protocol sieve { info_log_path = /var/log/dovecot/sieve.log log_path = /var/log/dovecot/sieve-errors.log managesieve_implementation_string = Dovecot managesieve_max_compile_errors = 5 managesieve_max_line_length = 64 k } j On 5/1/2021 12:44 AM, Steve Watt wrote: > > From a little bit of poking around in the source, I wonder if you > somehow have the LMTP listener running on the sieve port. > > The output of doveconf -n will help more than just the 90-sieve.conf. > Also check the dovecot log; I found it helpful (once I figured out how > to configure it) with debugging. > > [ Apologies for top post; brain-damaged MUA in use. ] > > -- > > Steve Watt KD6GGD PP-ASEL-IA factories.words.yappy > > Don't let your schooling get in the way of your education. > > *From:* dovecot <dovecot-bounces(a)dovecot.org> *On Behalf Of *Dan Egli > *Sent:* Friday, April 30, 2021 23:13 > *To:* dovecot(a)dovecot.org > *Subject:* Sieve daemon errors? (Part 1 of 2, Pt 2 to follow when Pt 1 > resolved) > > Folks, I am still trying to get help here. Let me re-state what is > going on. I have a webmail program (SOGo) that connects to the Dovecot > sieve system to handle things like mail filters and what not. That way > dovecot's lda program can move things where they belong. So I went > through the config files, and found the places where I need to enable > sieve (this is in Gentoo Linux, by the way). Now, when dovecot starts > I do see a listener on the sieve port on localhost: > > #netstat -tl | grep sieve > tcp 0 0 localhost:sieve 0.0.0.0:* LISTEN > > And when I telnet to the port, it does connect. But it doesn't say much. > > telnet localhost sieve > Trying 127.0.0.1... > Connected to localhost. > Escape character is '^]'. > 220 jupiter.newideatest.site Dovecot ready. > > Yet every example I see online is showing a HECK of a lot more than > this. So what's up? Anyone got any idea what I did wrong? I've put the > 90-sieve.conf file on my web server at > www.newideatest.site/90-sieve.conf > <http://www.newideatest.site/90-sieve.conf> for those who want to see > it. If any other config files are wanted/needed to help figure this > out, let me know what they are and I'll take care of it. Here's an > example of what other websites I've looked at say I SHOULD see: > > Trying 162.243.12.140... > Connected to test3.rtcamp.com. > Escape character is '^]'. > *"IMPLEMENTATION" "Dovecot Pigeonhole"* > *"SIEVE" "fileinto reject envelope encoded-character vacation > subaddress comparator-i;ascii-numeric relational regex imap4flags copy > include variables body enotify environment mailbox date ihave"* > "NOTIFY" "mailto" > "SASL" "PLAIN LOGIN" > "STARTTLS" > "VERSION" "1.0" > OK "Dovecot ready." > so why am I not getting all this? > -- > Dan Egli > From my Test Server -- Dan Egli From my Test Server

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What imap ssl/auth settings work best with MS Outlook?
by Steve Dondley 01 May '21

01 May '21

I repeatedly have a hell of a time getting clients' Outlook software working well with Dovecot. It's hard for me to test myself since I don't have Outlook and it would be impossible to keep up with all the different versions anyway. I've got the following settings, currently: disable_plaintext_auth = yes auth_username_format = %Ln auth_mechanisms = plain login ssl = yes service imap-login { # inet_listener imap { # port = 143 # } inet_listener imaps { port = 993 ssl = yes } } service imap { client_limit = 1 } It always seems to be hit or miss with outlook as to which encryption setting to use, which port to try, etc. With a recent client, I couldn't get them successfully logged in no matter what manual settings we tried. If someone can give me some tips on how to get most versions of Outlook cooperating well with Dovecot, I'd appreciate it.

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Sieve daemon errors? (Part 1 of 2, Pt 2 to follow when Pt 1 resolved)
by Dan Egli 01 May '21

01 May '21

Folks, I am still trying to get help here. Let me re-state what is going on. I have a webmail program (SOGo) that connects to the Dovecot sieve system to handle things like mail filters and what not. That way dovecot's lda program can move things where they belong. So I went through the config files, and found the places where I need to enable sieve (this is in Gentoo Linux, by the way). Now, when dovecot starts I do see a listener on the sieve port on localhost: #netstat -tl | grep sieve tcp 0 0 localhost:sieve 0.0.0.0:* LISTEN And when I telnet to the port, it does connect. But it doesn't say much. telnet localhost sieve Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 220 jupiter.newideatest.site Dovecot ready. Yet every example I see online is showing a HECK of a lot more than this. So what's up? Anyone got any idea what I did wrong? I've put the 90-sieve.conf file on my web server at www.newideatest.site/90-sieve.conf for those who want to see it. If any other config files are wanted/needed to help figure this out, let me know what they are and I'll take care of it. Here's an example of what other websites I've looked at say I SHOULD see: Trying 162.243.12.140... Connected to test3.rtcamp.com. Escape character is '^]'. *"IMPLEMENTATION" "Dovecot Pigeonhole" "SIEVE" "fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave" *"NOTIFY" "mailto" "SASL" "PLAIN LOGIN" "STARTTLS" "VERSION" "1.0" OK "Dovecot ready." so why am I not getting all this? -- Dan Egli From my Test Server

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how to show FreeIPA/Kerberos Password expired on webmail login
by Robert Kudyba 30 Apr '21

30 Apr '21

Using dovecot-2.3.14-1.fc33.x86_64 with FreeIPA & Kerberos if a user's password is expired in a web mail login, e.g., with Squirrelmail, the user sees: "Unknown user or password incorrect." The dovecot logs show: auth: Debug: client passdb out: FAIL 1 user=ouruser(a)ourdomain.edu code=pass_expired reason=Password expired original_user=ouruser imap-login: Debug: Ignoring unknown passdb extra field: original_user imap-login: Info: Aborted login (password expired): user=< ouruser(a)ourdomain.edu>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured, session=<jC/SEjbBGMV/AAAB> Would this be a feature request to show this message to users? Also with debug logging there is a lot of log noise and are these errors normal? Error: passwd-file: open(/etc/dovecot/users) failed: No such file or directory as well as: auth: Debug: http-client: conn x.x.x.x:8084 [1]: Client connection failed (fd=23) auth: Debug: http-client[1]: peer x.x.x.x:8084: Connection failed (1 connections exist, 0 pending) auth: Debug: http-client: peer x.x.x.x:8084: Failed to make connection (1 connections exist, 0 pending) auth: Debug: http-client[1]: peer x.x.x.x:8084: Failed to establish any connection within our peer pool: connect(x.x.x.x:8084) failed: Connection refused (1 connections exist, 0 pending) auth: Debug: http-client[1]: queue https://x.x.x.x:8084: Failed to set up connection to x.x.x.x:8084 (SSL=x.x.x.x): connect(x.x.x.x:8084) failed: Connection refused (1 peers pending, 1 requests pending) auth: Debug: http-client[1]: peer x.x.x.x:8084: Unlinked queue https://x.x.x.x:8084 (0 queues linked) auth: Debug: http-client[1]: queue https://x.x.x.x:8084: Failed to set up any connection; failing all queued requests auth: Debug: http-client[1]: request [Req1: POST https://x.x.x.x:8084/?command=allow] Error: 9003 connect(x.x.x.x:8084) failed: Connection refused auth: Debug: http-client[1]: queue https://x.x.x.x:8084: Dropping request [Req1: POST https://x.x.x.x:8084/?command=allow] auth: Debug: http-client: host x.x.x.x: Host is idle (timeout = 100 msecs) auth: Error: policy(ouruser(a)ourdomain.edu,127.0.0.1,<jC/SEjbBGMV/AAAB>): Policy server HTTP error: connect(x.x.x.x:8084) failed: Connection refused

1 0

Installation Question: Is a web server required ?
by White, Daniel E. (GSFC-770.0)[NICS] 29 Apr '21

29 Apr '21

Can Dovecot be installed with Postfix and without being behind a web server ? I want a mail service that can only be accessed by POP3(s)/IMAP(s) and not by a web UI. Thanks.

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Re: Installation Question: Is a web server required ?
by White, Daniel E. (GSFC-770.0)[NICS] 28 Apr '21

28 Apr '21

If you push the car off a cliff, it will fly for a few seconds. Thanks for responding. -----Original Message----- From: dovecot <dovecot-bounces(a)dovecot.org> on behalf of Benny Pedersen <me(a)junc.eu> Organization: junc.eu Date: Wednesday, April 28, 2021 at 13:43 To: "dovecot(a)dovecot.org" <dovecot(a)dovecot.org> Subject: [EXTERNAL] Re: Installation Question: Is a web server required ? On 2021-04-28 19:28, White, Daniel E. (GSFC-770.0)[NICS] wrote: > Can Dovecot be installed with Postfix and without being behind a web > server ? > > I want a mail service that can only be accessed by POP3(s)/IMAP(s) and > not by a web UI. can a car fly without gasoline ? :=) none of the above software require x11 not even roundcube

1 0

Re: Installation Question: Is a web server required ?
by White, Daniel E. (GSFC-770.0)[NICS] 28 Apr '21

28 Apr '21

Thanks. That is what we want. Just mail, no extras -----Original Message----- From: dovecot <dovecot-bounces(a)dovecot.org> on behalf of Heiko Schlittermann <hs(a)schlittermann.de> Organization: schlittermann -- internet & unix support Date: Wednesday, April 28, 2021 at 13:36 To: <dovecot(a)dovecot.org> Subject: [EXTERNAL] Re: Installation Question: Is a web server required ? White, Daniel E. (GSFC-770.0)[NICS] <daniel.e.white(a)nasa.gov> (Mi 28 Apr 2021 19:28:41 CEST): > Can Dovecot be installed with Postfix and without being behind a web server ? Yes. > I want a mail service that can only be accessed by POP3(s)/IMAP(s) and not by a web UI. Dovecot is a pure POP3/IMAP server. No Web-UI is required/provided. (I think, there are other "modules" planned or working already, like calendar or such. But maybe I'm confusing this with alternative mail access server software.) -- Heiko

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connection closes every 10 minutes
by Marco Fioretti 28 Apr '21

28 Apr '21

Greetings, I use mutt on Ubuntu to access my IMAP mailboxes, on my Centos email server that runs dovecot. Everything has worked without problems for years. About one week ago, the connection between mutt and dovecot became unstable. Before, I could leave mutt connected for days in a row, no problem. Now, everything still works fine, except... I get every ten minutes I get "connection timed out" in Mutt's status line, and hundreds of messages like Apr 12 16:12:49 SERVERNAME dovecot: imap(ACCOUNTNAME): Logged out in=164 out=757 what puzzles me is that I did not touch anything both on my server and on my desktop, except an "apt-get update" some days before this started. But cannot see how it would be related anyway, nor have I found anything online like this. Any help to understand what happened and fix it is very welcome. Marco

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Help with imapc and Shared Folder in a Cluster
by Alessio Cecchi 28 Apr '21

28 Apr '21

Hi, I'm tryng to setup Shared Mailboxes in Dovecot (2.3.14) Cluster as explained here: https://doc.dovecot.org/configuration_manual/shared_mailboxes/cluster_setup/ but I'm not happy: # doveadm acl debug -u test1(a)emailtest.net shared/test2/Sent doveadm(test1(a)emailtest.net): Info: imapc(10.0.0.202:143): Connected to 10.0.0.202:143 (local 10.0.0.203:58054) doveadm(test1(a)emailtest.net): Info: imapc(10.0.0.202:143): Connected to 10.0.0.202:143 (local 10.0.0.203:58056) doveadm(test1(a)emailtest.net): Error: imapc(10.0.0.202:143): Authentication failed: [AUTHENTICATIONFAILED] Authentication failed. doveadm(test1(a)emailtest.net): Error: Can't open mailbox shared/test2/Sent: Authentication failed: [AUTHENTICATIONFAILED] Authentication failed. ACL, master-user, master-password works fine because with regular configuration shared folders works fine and also with master-user or with master-password I can login and see and access to shared/ namespace and shared folders. But when I try to switch location from location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u to location = imapc:~/Maildir/shared/%%u/ [...] imapc_host = 10.0.0.202 imapc_master_user = %u #imapc_user = %u imapc_password = Password imapc_features = search stop working. The relevant error is this: Apr 22 22:57:14 doveadm(test1(a)testemail.net): Info: imapc(10.0.0.203:143): Connected to 10.0.0.202:143 (local 10.0.0.203:58070) Apr 22 22:57:14 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Server capabilities: IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE XLIST LITERAL+ AUTH=PLAIN AUTH=LOGIN Apr 22 22:57:14 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Authenticating as test1(a)testemail.net for user test2(a)testemail.net Apr 22 22:57:16 doveadm(test1(a)testemail.net): Error: imapc(10.0.0.203:143): Authentication failed: [AUTHENTICATIONFAILED] Authentication failed. Apr 22 22:57:16 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Disconnected Apr 22 22:57:16 doveadm(test1(a)testemail.net): Error: Can't open mailbox shared/test2/Sent: Authentication failed: [AUTHENTICATIONFAILED] Authentication failed. Please note "Authenticating as test1(a)testemail.net for user test2(a)testemail.net" failed. So my question is, the documentation page is update and right or I missing something? Someone have this setup workings? Follow the doveadm acl debug and my dovecot configuration: # doveadm -Dv acl debug -u test1(a)testemail.net shared/test2/Sent Apr 22 22:56:08 Debug: Loading modules from directory: /usr/lib64/dovecot Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/lib20_fts_plugin.so Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/lib20_virtual_plugin.so Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/lib20_zlib_plugin.so Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/lib21_fts_solr_plugin.so Apr 22 22:56:08 Debug: Loading modules from directory: /usr/lib64/dovecot/doveadm Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_quota_plugin.so Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_sieve_plugin.so Apr 22 22:56:08 Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this message) Apr 22 22:56:08 Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_plugin.so Apr 22 22:56:08 Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/libdoveadm_mail_crypt_plugin.so: undefined symbol: mail_crypt_box_get_pvt_digests (this is usually intentional, so just ignore this message) Apr 22 22:56:08 doveadm(test1(a)testemail.net) session=<>: Debug: auth-master: userdb lookup(test1(a)testemail.net): Started userdb lookup Apr 22 22:56:08 doveadm(test1(a)testemail.net) session=<>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting Apr 22 22:56:08 doveadm(test1(a)testemail.net) session=<>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb (pid=19783,uid=0): Client connected (fd=10) Apr 22 22:56:08 doveadm(test1(a)testemail.net) session=<>: Debug: auth-master: userdb lookup(test1(a)testemail.net): auth USER input: test1(a)testemail.net home=/home/vmail/testemail.net/test1 uid=89 gid=89 quota_rule=*:backend=8589934592S,229376C Apr 22 22:56:08 doveadm(test1(a)testemail.net) session=<>: Debug: auth-master: userdb lookup(test1(a)testemail.net): Finished userdb lookup (username=test1(a)testemail.net home=/home/vmail/testemail.net/test1 uid=89 gid=89 quota_rule=*:backend=8589934592S,229376C) Apr 22 22:56:08 doveadm(test1(a)testemail.net) session=<>: Debug: Added userdb setting: plugin/quota_rule=*:backend=8589934592S,229376C Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Effective uid=89, gid=89, home=/home/vmail/testemail.net/test1 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota root: name=UserQuota backend=maildir args= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota rule: root=UserQuota mailbox=* bytes=8589934592 messages=229376 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota rule: root=UserQuota mailbox=Trash bytes=+104857600 messages=0 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota warning: bytes=8160437862 (95%) messages=0 reverse=no command=quota-warning 95 test1(a)testemail.net 2 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota warning: bytes=7730941132 (90%) messages=0 reverse=no command=quota-warning 90 test1(a)testemail.net 1 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota warning: bytes=7301444403 (85%) messages=0 reverse=yes command=quota-warning 85 test1(a)testemail.net 0 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota grace: root=UserQuota bytes=10485760 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota root: name=Quota Usage backend=dict args=:noenforcing:proxy::sqlquota Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota grace: root=Quota Usage bytes=0 (10%) Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: quota-dict: user=test1(a)testemail.net, uri=proxy::sqlquota, noenforcing=1 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: maildir++: root=/home/vmail/testemail.net/test1/Maildir, index=, indexpvt=, control=, inbox=/home/vmail/testemail.net/test1/Maildir, alt= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: initializing backend with data: vfile Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: acl username = test1(a)testemail.net Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: owner = 1 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl vfile: Global ACLs disabled Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Namespace : type=shared, prefix=shared/%n/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=imapc:~/Maildir/shared/%u/ Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: fts: Indexes disabled for namespace 'shared/%n/' Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: initializing backend with data: vfile Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: acl username = test1(a)testemail.net Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: owner = 0 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl vfile: Global ACLs disabled Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Namespace Virtual: type=private, prefix=Virtual/, sep=/, inbox=no, hidden=yes, list=no, subscriptions=no location=virtual:/etc/dovecot/virtual:INDEX=~/Maildir/virtual Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: fs: root=/etc/dovecot/virtual, index=/home/vmail/testemail.net/test1/Maildir/virtual, indexpvt=, control=, inbox=, alt= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: initializing backend with data: vfile Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: acl username = test1(a)testemail.net Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: owner = 1 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl vfile: Global ACLs disabled Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: quota: quota_over_flag check: quota_over_script unset - skipping Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: quota: quota_over_flag check: quota2_over_script unset - skipping Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: auth-master: userdb lookup(test2(a)testemail.net): Started userdb lookup Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: auth-master: userdb lookup(test2(a)testemail.net): auth USER input: test2(a)testemail.net home=/home/vmail/testemail.net/test2 uid=89 gid=89 quota_rule=*:backend=8589934592S,229376C Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: auth-master: userdb lookup(test2(a)testemail.net): Finished userdb lookup (username=test2(a)testemail.net home=/home/vmail/testemail.net/test2 uid=89 gid=89 quota_rule=*:backend=8589934592S,229376C) Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota root: name=UserQuota backend=maildir args= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota rule: root=UserQuota mailbox=* bytes=8589934592 messages=229376 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota rule: root=UserQuota mailbox=Trash bytes=+104857600 messages=0 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota warning: bytes=8160437862 (95%) messages=0 reverse=no command=quota-warning 95 test2(a)testemail.net 2 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota warning: bytes=7730941132 (90%) messages=0 reverse=no command=quota-warning 90 test2(a)testemail.net 1 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota warning: bytes=7301444403 (85%) messages=0 reverse=yes command=quota-warning 85 test2(a)testemail.net 0 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota grace: root=UserQuota bytes=10485760 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota root: name=Quota Usage backend=dict args=:noenforcing:proxy::sqlquota Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: Quota grace: root=Quota Usage bytes=0 (10%) Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: quota-dict: user=test2(a)testemail.net, uri=proxy::sqlquota, noenforcing=1 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Created new connection Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Looking up IP address (reconnect_ok=true, last_connect=1619124968) Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Connecting to 10.0.0.202:143 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Info: imapc(10.0.0.203:143): Connected to 10.0.0.202:143 (local 10.0.0.203:58062) Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Server capabilities: IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE XLIST LITERAL+ AUTH=PLAIN AUTH=LOGIN Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Authenticating as test2(a)testemail.net for user test2(a)testemail.net Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Server capabilities: IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE SNIPPET=FUZZY PREVIEW=FUZZY STATUS=SIZE SAVEDATE XLIST LITERAL+ NOTIFY SPECIAL-USE QUOTA ACL RIGHTS=texk Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Authenticated successfully Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc: root=/home/vmail/testemail.net/test2/Maildir/shared/test2@testemail.net, index=, indexpvt=, control=, inbox=, alt= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: maildir++: root=/home/vmail/testemail.net/test2/Maildir/shared/test2@testemail.net, index=, indexpvt=, control=, inbox=, alt= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: initializing backend with data: vfile Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: acl username = test2(a)testemail.net Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: owner = 1 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl vfile: Global ACLs disabled Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: quota: quota_over_flag check: quota_over_script unset - skipping Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: quota: quota_over_flag check: quota2_over_script unset - skipping Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Created new connection Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Looking up IP address (reconnect_ok=true, last_connect=1619124968) Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Connecting to 10.0.0.202:143 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc: root=/home/vmail/testemail.net/test1/Maildir/shared/test2@testemail.net, index=, indexpvt=, control=, inbox=, alt= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: maildir++: root=/home/vmail/testemail.net/test1/Maildir/shared/test2@testemail.net, index=, indexpvt=, control=, inbox=, alt= Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: initializing backend with data: vfile Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: acl username = test1(a)testemail.net Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl: owner = 0 Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: acl vfile: Global ACLs disabled Apr 22 22:56:08 doveadm(test1(a)testemail.net): Info: imapc(10.0.0.203:143): Connected to 10.0.0.202:143 (local 10.0.0.203:58064) Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Server capabilities: IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE XLIST LITERAL+ AUTH=PLAIN AUTH=LOGIN Apr 22 22:56:08 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Authenticating as test1(a)testemail.net for user test2(a)testemail.net Apr 22 22:56:10 doveadm(test1(a)testemail.net): Error: imapc(10.0.0.203:143): Authentication failed: [AUTHENTICATIONFAILED] Authentication failed. Apr 22 22:56:10 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Disconnected Apr 22 22:56:10 doveadm(test1(a)testemail.net): Error: Can't open mailbox shared/test2/Sent: Authentication failed: [AUTHENTICATIONFAILED] Authentication failed. Apr 22 22:56:10 doveadm(test1(a)testemail.net): Debug: imapc(10.0.0.203:143): Disconnected Apr 22 22:56:10 doveadm(test1(a)testemail.net): Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb (pid=19783,uid=0): Disconnected: Connection closed (fd=10) # dovecot -n # 2.3.14 (cee3cbc0d): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.14 (1b5c82b2) # OS: Linux 3.10.0-1160.24.1.el7.x86_64 x86_64 CentOS Linux release 7.9.2009 (Core) # Hostname: popimap.emailtest.net auth_cache_negative_ttl = 90 secs auth_cache_size = 50 M auth_debug = yes auth_debug_passwords = yes auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = plain auth_worker_max_count = 50 default_vsz_limit = 1 G deliver_log_format = deliverytime=%{delivery_time}, msgid=%m, sender=%e, from=%f, subject="%s": %$ dict { acl = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext sieve = mysql:/etc/dovecot/dovecot-dict-sieve-sql.conf.ext sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = 89 imap_capability = +XLIST imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags imap_id_log = * imap_logout_format = in=%{input} out=%{output} deleted=%{deleted} expunged=%{expunged} autoexpunged=%{autoexpunged} trashed=%{trashed} appended=%{appended} hdr_count=%{fetch_hdr_count} hdr_bytes=%{fetch_hdr_bytes} body_count=%{fetch_body_count} body_bytes=%{fetch_body_bytes} imap_max_line_length = 2 M imapc_features = search imapc_host = 10.0.0.202 imapc_master_user = %u imapc_password = # hidden, use -P to show it last_valid_gid = 89 last_valid_uid = 89 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes login_trusted_networks = 10.0.0.0/24 10.0.1.0/24 mail_attachment_detection_options = add-flags content-type=!image/* mail_attribute_dict = file:%h/Maildir/dovecot-attributes mail_fsync = always mail_location = maildir:~/Maildir mail_log_prefix = "%s(%u) session=<%{session}>: " mail_plugins = quota acl zlib fts fts_solr virtual maildir_very_dirty_syncs = yes 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 vacation-seconds mmap_disable = yes namespace { list = children location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u prefix = shared/%%n/ separator = / subscriptions = no type = shared } namespace Virtual { hidden = yes list = no location = virtual:/etc/dovecot/virtual:INDEX=~/Maildir/virtual prefix = Virtual/ separator = / subscriptions = no } namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } mailbox virtual/All { comment = All my messages special_use = \All } prefix = separator = / } passdb { args = /etc/dovecot/dovecot-deny-sql.conf.ext deny = yes driver = sql } passdb { args = password=#hidden_use-P_to_show# driver = static result_success = continue } passdb { args = /etc/dovecot/extra/master-users driver = passwd-file master = yes result_success = continue } passdb { args = /etc/dovecot/dovecot-sql.conf.ext auth_verbose = yes driver = sql result_success = continue-ok } passdb { args = /etc/dovecot/extra/extrafields-passdb driver = passwd-file result_internalfail = return-fail skip = unauthenticated } plugin { acl = vfile acl_ignore_namespace = shared/* acl_shared_dict = proxy::acl fts = solr fts_autoindex = no fts_index_timeout = 60s fts_solr = url=http://10.0.0.5:8983/solr/dovecot/ debug fts_tika = http://10.0.0.206:9998/tika/ master_user = %u push_notification_driver = ox:url=http://10.0.0.235/notify quota = maildir:UserQuota quota2 = dict:Quota Usage::noenforcing:proxy::sqlquota quota_grace = 10M quota_max_mail_size = 60M quota_rule2 = Trash:storage=+100M quota_warning = storage=95%% quota-warning 95 %u 2 quota_warning2 = storage=90%% quota-warning 90 %u 1 quota_warning3 = -storage=85%% quota-warning 85 %u 0 sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = dict:proxy::sieve;name=activesql sieve_before2 = /etc/dovecot/sieve/before.sieve sieve_duplicate_default_period = 1h sieve_duplicate_max_period = 1d sieve_extensions = +vacation-seconds sieve_max_redirects = 25 sieve_vacation_default_period = 1d sieve_vacation_min_period = 4h sieve_vacation_send_from_recipient = yes zlib_save = gz zlib_save_level = 6 } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_fast_size_lookups = yes pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%{deleted_bytes}/%m, size=%s, bytes=%i/%o protocols = imap pop3 lmtp sieve service auth { client_limit = 6524 unix_listener auth-userdb { group = vchkpw mode = 0660 user = vmail } } service dict { process_limit = 500 unix_listener dict { group = vchkpw mode = 0660 user = vmail } } service doveadm { inet_listener { port = 2425 } } service imap-login { process_min_avail = 12 service_count = 0 } service imap-postlogin { executable = script-login /etc/dovecot/scripts/imap-postlogin.sh unix_listener imap-postlogin { group = vchkpw mode = 0660 user = vmail } user = vmail } service imap { executable = imap imap-postlogin process_limit = 8000 vsz_limit = 2 G } service lmtp { inet_listener lmtp { port = 24 } process_min_avail = 12 } service managesieve-login { inet_listener sieve { port = 4190 } } service pop3-login { process_min_avail = 12 service_count = 0 } service pop3-postlogin { executable = script-login /etc/dovecot/scripts/pop3-postlogin.sh unix_listener pop3-postlogin { group = vchkpw mode = 0660 user = vmail } user = vmail } service pop3 { executable = pop3 pop3-postlogin } service quota-warning { executable = script /etc/dovecot/scripts/quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } service stats { client_limit = 10240 unix_listener stats-writer { group = vchkpw mode = 0660 user = vmail } } ssl = no submission_host = 127.0.0.1 userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol lmtp { mail_fsync = optimized mail_plugins = quota acl zlib fts fts_solr virtual sieve notify push_notification namespace inbox { location = mailbox Spam { autoexpunge = 31 days } mailbox Trash { autoexpunge = 31 days } prefix = } } protocol lda { mail_fsync = optimized mail_plugins = quota acl zlib fts fts_solr virtual sieve notify push_notification } protocol imap { mail_max_userip_connections = 10 mail_plugins = quota acl zlib fts fts_solr virtual imap_quota imap_acl namespace inbox { location = mailbox Spam { autoexpunge = 31 days } mailbox Trash { autoexpunge = 31 days } prefix = } } protocol sieve { mail_max_userip_connections = 2 } protocol pop3 { mail_max_userip_connections = 15 } remote 10.0.1.0/24 { protocol imap { imap_metadata = yes } } local 10.0.0.0/24 { doveadm_password = # hidden, use -P to show it } Thanks -- Alessio Cecchi Postmaster @ http://www.qboxmail.it https://www.linkedin.com/in/alessice

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