RE: dovecot Digest, Vol 173, Issue 28 (INTERNAL)
Hi,
It is quite easy.
I use a client (thunderbird or windows live mail) set it up to use starttls on standard port 110. Logon and just do a list on the mailbox. The fatal error occurred when I logoff.
Arvid
-----Original Message----- From: dovecot [mailto:dovecot-bounces@dovecot.org] On Behalf Of dovecot-request@dovecot.org Sent: 11. september 2017 14:57 To: dovecot@dovecot.org Subject: dovecot Digest, Vol 173, Issue 28
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Today's Topics:
- Re: pop3-login core dump when using TLSSTART on version dovecot-2.2.32 (INTERNAL) (Aki Tuomi)
- Re: Per-user quota (passwd) (Evgeniy Korneechev)
- Re: Per-user quota (passwd) (Aki Tuomi)
- Re: Is it possible to disable pipelining in imapc? (Nagy, Attila)
Message: 1 Date: Mon, 11 Sep 2017 13:57:19 +0300 From: Aki Tuomi <aki.tuomi@dovecot.fi> To: dovecot@dovecot.org Subject: Re: pop3-login core dump when using TLSSTART on version dovecot-2.2.32 (INTERNAL) Message-ID: <cd450054-53c4-2f84-eba7-7ce602c26892@dovecot.fi> Content-Type: text/plain; charset=utf-8
Can you outline the exact steps you perform to get this?
Aki
On 11.09.2017 13:42, Arvid.Eikas@telenor.com wrote:
Hi,
I switched back to 2.2.27 with the same config that I am using for 2.2.32 and it work fine.
Sep 11 11:49:37 imap-login: Info: Login: user=<viboge>, method=PLAIN, rip=88.89.118.45, lip=148.123.160.116, mpid=18709, TLS, session=<v7o22OZYrsdYWXYt> Sep 11 11:49:40 imap(mailuser) Session-ID v7o22OZYrsdYWXYt RemoteIP 88.89.118.45 Maildir /var/nextmail/nfs2.flex14/49/79/841 Info: Logged out in=4518 out=273720 deleted 0 expunged 0 trashed 0 Sep 11 11:49:40 imap-login: Debug: SSL alert: close notify [88.89.118.45]
How could I proceed? Any clue? It is quite annoying to see this entry in the log for each session.
Arvid
-----Original Message----- From: Aki Tuomi [mailto:aki.tuomi@dovecot.fi] Sent: 11. september 2017 09:18 To: Eik?s Arvid; dovecot@dovecot.org Subject: Re: pop3-login core dump when using TLSSTART on version dovecot-2.2.32 (INTERNAL)
Hi!
I tried to reproduce this problem with dovecot-2.2.32 and OpenSSL 1.0.1k and was not able to. I enabled -DREF_CHECK on OpenSSL, but to no avail, the process did not crash. Is there something else you've done?
Aki
On 11.09.2017 08:07, Arvid.Eikas@telenor.com wrote:
Hi,
Here is the gdb output.
Arvid
GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-94.el7 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /local/misc/mail/dovecot-32/libexec/dovecot/pop3-login...done. [New LWP 15894] Core was generated by `dovecot-test/pop3-login'. Program terminated with signal 6, Aborted. #0 0x00007ff0bd9cf1d7 in raise () from /lib64/libc.so.6 Missing separate debuginfos, use: debuginfo-install glibc-2.17-157.el7_3.1.x86_64 (gdb) bt full #0 0x00007ff0bd9cf1d7 in raise () from /lib64/libc.so.6 No symbol table info available. #1 0x00007ff0bd9d08c8 in abort () from /lib64/libc.so.6 No symbol table info available. #2 0x00007ff0bd3c0f2f in engine_unlocked_finish (e=0x1c51c60, unlock_for_handlers=1) at eng_init.c:115 to_return = 1 #3 0x00007ff0bd3c1064 in ENGINE_finish (e=0x1c51c60) at eng_init.c:150 to_return = 1 #4 0x00007ff0be0f9300 in ssl_proxy_deinit () from /local/nextmail/dovecot/lib64/dovecot/libdovecot-login.so.0 No symbol table info available. #5 0x00007ff0be0f4472 in main_deinit () from /local/nextmail/dovecot/lib64/dovecot/libdovecot-login.so.0 No symbol table info available. #6 0x00007ff0be0f479f in login_binary_run () from /local/nextmail/dovecot/lib64/dovecot/libdovecot-login.so.0 No symbol table info available. #7 0x00000000004032da in main (argc=1, argv=0x7ffe3059f3f8) at client.c:356 No locals.
-----Original Message----- From: Aki Tuomi [mailto:aki.tuomi@dovecot.fi] Sent: 8. september 2017 14:08 To: Eik?s Arvid; dovecot@dovecot.org Subject: Re: pop3-login core dump when using TLSSTART on version dovecot-2.2.32 (OPEN)
I assume you mean STARTTLS. Can you provide gdb /path/to/bin /path/to/core and provide output of bt full?
Aki
On 08.09.2017 15:01, Arvid.Eikas@telenor.com wrote:
Hi,
Pop3-login are CORE-dumping when I log on with TLSSTART, I believe the same will happen with imap-logon to, but I have not tested it yet. The TLS session is coming up and it works fine until I log off, then it's core dump. Open sslvesrion is openssl-1.0.2k. We ran dovecot-2.2.27 before we upgraded to dovecote-2.2.32, and that seems to work fine. (not core dumping)
Arvid
LOG Sep 05 14:27:34 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:30 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:30 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:42 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:42 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:50 pop3-login: Info: Login: user=<tstrand>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=18361, secured, session=<65m8ZXBYtpN/AAAB> Sep 05 14:30:50 pop3-login: Error: ENGINE_finish, bad functional reference count Sep 05 14:30:50 pop3-login: Fatal: master: service(pop3-login): child 18359 killed with signal 6 (core dumped)
From ./crypto/engine/eng_init.c
......... int engine_unlocked_finish(ENGINE *e, int unlock_for_handlers) { int to_return = 1;
/* * Reduce the functional reference count here so if it's the terminating * case, we can release the lock safely and call the finish() handler * without risk of a race. We get a race if we leave the count until * after and something else is calling "finish" at the same time - * there's a chance that both threads will together take the count from 2 * to 0 without either calling finish(). */ e->funct_ref--; engine_ref_debug(e, 1, -1); if ((e->funct_ref == 0) && e->finish) { if (unlock_for_handlers) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); to_return = e->finish(e); if (unlock_for_handlers) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); if (!to_return) return 0; }#ifdef REF_CHECK if (e->funct_ref < 0) { fprintf(stderr, "ENGINE_finish, bad functional reference count\n"); abort();
.........
/* The API (locked) version of "finish" */ int ENGINE_finish(ENGINE *e) { int to_return = 1;
if (e == NULL) { ENGINEerr(ENGINE_F_ENGINE_FINISH, ERR_R_PASSED_NULL_PARAMETER); return 0; } CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); to_return = engine_unlocked_finish(e, 1); CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); if (!to_return) { ENGINEerr(ENGINE_F_ENGINE_FINISH, ENGINE_R_FINISH_FAILED); return 0; } return to_return;}
Message: 2 Date: Mon, 11 Sep 2017 14:48:47 +0300 (MSK) From: Evgeniy Korneechev <ekorneechev@altlinux.org> To: Aki Tuomi <aki.tuomi@dovecot.fi> Cc: dovecot <dovecot@dovecot.org> Subject: Re: Per-user quota (passwd) Message-ID: <2046000051.747964.1505130527842.JavaMail.zimbra@remotesystems.ru> Content-Type: text/plain; charset=utf-8
Hi. But there is one problem...
protocol lda { mail_plugins = " quota autocreate sieve quota" plugin { quota = dict:user::file:/var/vmail/glu_vrem/%u/.quotausage } } protocol imap { mail_plugins = " quota autocreate autocreate imap_quota" plugin { autocreate = INBOX autocreate2 = Sent autocreate3 = Trash autocreate4 = Drafts autocreate5 = Junk autosubscribe = INBOX autosubscribe2 = Sent autosubscribe3 = Trash autosubscribe4 = Drafts autosubscribe5 = Junk quota = dict:user::file:/var/vmail/glu_vrem/%u/.quotausage } }
Users with non-standard quota in passwd-file:
> administrator:*:95400500:95400513:Administrator:/home/DOM/admini > strator:/bin/bash::userdb_quota_rule=*:bytes=10G > userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir > administrator@email.dom:*:95400500:95400513:Administrator:/home/ > DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G > userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir
Others from passwd.
Files ".quotausage" are created in different directories: /var/vmail/glu_vrem/administrator\DOM/.quotausage /var/vmail/glu_vrem/administrator@email.dom/.quotausage And must in the folder "/var/vmail/glu_vrem/administrator"
How fix it?
----- ???????? ????????? -----
??: "Evgeniy Korneechev" <ekorneechev@altlinux.org> ????: "Aki Tuomi" <aki.tuomi@dovecot.fi> ?????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 30 ???? 2017 ? 10:39:16 ????: Re: Per-user quota (passwd)
Our solution: userdb { args = /etc/imap.passwd driver = passwd-file override_fields = home=/var/vmail/glu_vrem/%u } userdb { driver = passwd override_fields = home=/var/vmail/glu_vrem/%u }
Users with non-standard quota in passwd-file:
> administrator:*:95400500:95400513:Administrator:/home/DOM/admini > strator:/bin/bash::userdb_quota_rule=*:bytes=10G > userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir > administrator@email.dom:*:95400500:95400513:Administrator:/home/ > DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G > userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir
Others from passwd.
Its works! Thanks.
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 14:40:44 ????: Re: Per-user quota (passwd)
Oh you have multiple db's, I missed that.
Remove auth_username_format, and instead
userdb { args = /etc/imap.passwd username_format=%Ln driver = passwd-file
override_fields = home=/var/vmail/glu_vrem/%u }On 29.06.2017 14:35, Evgeniy Korneechev wrote:
with auth_username_format = %Ln:
Jun 28 14:43:41 auth: Debug: master in: USER 1 iivanov.ia@example.com service=lda Jun 28 14:43:41 auth-worker(18369): Debug: passwd(iivanov.ia): lookup Jun 28 14:43:41 auth-worker(18369): Info: passwd(iivanov.ia): unknown user - trying the next userdb Jun 28 14:43:41 auth-worker(18369): Debug: sql(iivanov.ia): SELECT email as user, maildir as home, CONCAT('maildir:', maildir, '/Maildir') as mail, uid, gid,
CONCAT('*:storage=', quota, 'B') AS quota_rule, CONCAT(maildir, '/.sieve') as sieve FROM mail_user WHERE (login = 'iivanov.ia' OR email = 'iivanov.ia') Jun 28 14:43:41 auth-worker(18369): Info: sql(iivanov.ia): unknown userMaybe %Lu?
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 14:10:07 ????: Re: Per-user quota (passwd) Yes.
Aki
On 29.06.2017 14:07, Evgeniy Korneechev wrote:
And if such a user: email (from AD) = ivanov.ia@example.com login (from AD), %n = iivanov %d = DOM %u = iivanov@DOM
?
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 13:59:05 ????: Re: Per-user quota (passwd) or use, as I indicated before, auth_username_format = %Ln
Aki
On 29.06.2017 13:58, Evgeniy Korneechev wrote: > Hi! > workaround: > administrator:*:95400500:95400513:Administrator:/home/DOM/admini > strator:/bin/bash::userdb_quota_rule=*:bytes=10G > userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir > administrator@email.dom:*:95400500:95400513:Administrator:/home/ > DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G > userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir > > But this is not a solution for 1000 users ... > Maybe is there extra field "userdb_mail=administrator@email.dom" > for email to passwd-file? > > ----- ???????? ????????? ----- >> ??: "Aki Tuomi" <aki.tuomi@dovecot.fi> >> ????: "dovecot" <dovecot@dovecot.org> >> ????????????: ?????, 28 ???? 2017 ? 12:40:48 >> ????: Re: Per-user quota (passwd) On 28.06.2017 12:36, Aki >> Tuomi wrote: >>> On 28.06.2017 12:25, Evgeniy Korneechev wrote: >>>> Hello! >>>> We have passwd=pam, userdb=passwd. >>>> passdb { >>>> driver = pam #server was entered domain Active Directory } >>>> userdb { >>>> driver = passwd >>>> override_fields = home=/var/vmail/glu_vrem/%u } >>>> >>>> How can i use per-user quota? Only passwd-file? >>>> >>>> I tried: >>>> userdb { >>>> args = /etc/imap.passwd >>>> driver = passwd-file >>>> override_fields = home=/var/vmail/glu_vrem/%u } >>>> /etc/imap.passwd: >>>> administrator:*:95400500:95400513:Administrator:/home/DOM/adm >>>> inistrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>>> >>>> Authentication and quota - now OK. But doesn't work sending >>>> and receiving mail... >>>> postfix say 'Unknown user'... >>>> >>>> >>>> Turn on auth_debug and auth_verbose and see what it says. >>>> >>>> Aki >> Also you can set auth_username_format = %Ln to force usernames >> into lowercase without domain. >> >> Aki
-- WBR, Korneechev Evgeniy BaseALT/ALTLinux Team
-- WBR, Korneechev Evgeniy BaseALT/ALTLinux Team
Message: 3 Date: Mon, 11 Sep 2017 14:51:13 +0300 From: Aki Tuomi <aki.tuomi@dovecot.fi> To: dovecot@dovecot.org Subject: Re: Per-user quota (passwd) Message-ID: <7e86447f-10e6-51a3-ce8a-3c4c8261bac1@dovecot.fi> Content-Type: text/plain; charset=utf-8
Hi! Just so you know, autocreate/autosubscribe is deprecated, you should use
namespace { mailbox INBOX { auto = subscribe } }
can you run
doveadm user administrator@email.dom
to verify that mail_home gets set correctly?
Aki
On 11.09.2017 14:48, Evgeniy Korneechev wrote:
Hi. But there is one problem...
protocol lda { mail_plugins = " quota autocreate sieve quota" plugin { quota = dict:user::file:/var/vmail/glu_vrem/%u/.quotausage } } protocol imap { mail_plugins = " quota autocreate autocreate imap_quota" plugin { autocreate = INBOX autocreate2 = Sent autocreate3 = Trash autocreate4 = Drafts autocreate5 = Junk autosubscribe = INBOX autosubscribe2 = Sent autosubscribe3 = Trash autosubscribe4 = Drafts autosubscribe5 = Junk quota = dict:user::file:/var/vmail/glu_vrem/%u/.quotausage } }
Users with non-standard quota in passwd-file:
>> administrator:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >> administrator@email.dom:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir Others from passwd.
Files ".quotausage" are created in different directories: /var/vmail/glu_vrem/administrator\DOM/.quotausage /var/vmail/glu_vrem/administrator@email.dom/.quotausage And must in the folder "/var/vmail/glu_vrem/administrator"
How fix it?
----- ???????? ????????? -----
??: "Evgeniy Korneechev" <ekorneechev@altlinux.org> ????: "Aki Tuomi" <aki.tuomi@dovecot.fi> ?????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 30 ???? 2017 ? 10:39:16 ????: Re: Per-user quota (passwd) Our solution: userdb { args = /etc/imap.passwd driver = passwd-file override_fields = home=/var/vmail/glu_vrem/%u } userdb { driver = passwd override_fields = home=/var/vmail/glu_vrem/%u }
Users with non-standard quota in passwd-file:
>> administrator:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >> administrator@email.dom:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir Others from passwd.
Its works! Thanks.
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 14:40:44 ????: Re: Per-user quota (passwd) Oh you have multiple db's, I missed that.
Remove auth_username_format, and instead
userdb { args = /etc/imap.passwd username_format=%Ln driver = passwd-file override_fields = home=/var/vmail/glu_vrem/%u }
On 29.06.2017 14:35, Evgeniy Korneechev wrote:
with auth_username_format = %Ln:
Jun 28 14:43:41 auth: Debug: master in: USER 1 iivanov.ia@example.com service=lda Jun 28 14:43:41 auth-worker(18369): Debug: passwd(iivanov.ia): lookup Jun 28 14:43:41 auth-worker(18369): Info: passwd(iivanov.ia): unknown user - trying the next userdb Jun 28 14:43:41 auth-worker(18369): Debug: sql(iivanov.ia): SELECT email as user, maildir as home, CONCAT('maildir:', maildir, '/Maildir') as mail, uid, gid,
CONCAT('*:storage=', quota, 'B') AS quota_rule, CONCAT(maildir, '/.sieve') as sieve FROM mail_user WHERE (login = 'iivanov.ia' OR email = 'iivanov.ia') Jun 28 14:43:41 auth-worker(18369): Info: sql(iivanov.ia): unknown userMaybe %Lu?
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 14:10:07 ????: Re: Per-user quota (passwd) Yes.
Aki
On 29.06.2017 14:07, Evgeniy Korneechev wrote:
And if such a user: email (from AD) = ivanov.ia@example.com login (from AD), %n = iivanov %d = DOM %u = iivanov@DOM
?
----- ???????? ????????? ----- > ??: "Aki Tuomi" <aki.tuomi@dovecot.fi> > ????: "dovecot" <dovecot@dovecot.org> > ????????????: ???????, 29 ???? 2017 ? 13:59:05 > ????: Re: Per-user quota (passwd) > or use, as I indicated before, auth_username_format = %Ln > > Aki > > > On 29.06.2017 13:58, Evgeniy Korneechev wrote: >> Hi! >> workaround: >> administrator:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >> administrator@email.dom:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >> >> But this is not a solution for 1000 users ... >> Maybe is there extra field "userdb_mail=administrator@email.dom" for email to >> passwd-file? >> >> ----- ???????? ????????? ----- >>> ??: "Aki Tuomi" <aki.tuomi@dovecot.fi> >>> ????: "dovecot" <dovecot@dovecot.org> >>> ????????????: ?????, 28 ???? 2017 ? 12:40:48 >>> ????: Re: Per-user quota (passwd) >>> On 28.06.2017 12:36, Aki Tuomi wrote: >>>> On 28.06.2017 12:25, Evgeniy Korneechev wrote: >>>>> Hello! >>>>> We have passwd=pam, userdb=passwd. >>>>> passdb { >>>>> driver = pam #server was entered domain Active Directory >>>>> } >>>>> userdb { >>>>> driver = passwd >>>>> override_fields = home=/var/vmail/glu_vrem/%u >>>>> } >>>>> >>>>> How can i use per-user quota? Only passwd-file? >>>>> >>>>> I tried: >>>>> userdb { >>>>> args = /etc/imap.passwd >>>>> driver = passwd-file >>>>> override_fields = home=/var/vmail/glu_vrem/%u >>>>> } >>>>> /etc/imap.passwd: >>>>> administrator:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>>>> >>>>> Authentication and quota - now OK. But doesn't work sending and receiving >>>>> mail... >>>>> postfix say 'Unknown user'... >>>>> >>>>> >>>>> Turn on auth_debug and auth_verbose and see what it says. >>>>> >>>>> Aki >>> Also you can set auth_username_format = %Ln to force usernames into >>> lowercase without domain. >>> >>> Aki
WBR, Korneechev Evgeniy BaseALT/ALTLinux Team
Message: 4 Date: Mon, 11 Sep 2017 14:56:28 +0200 From: "Nagy, Attila" <bra@fsn.hu> To: Aki Tuomi <aki.tuomi@dovecot.fi>, dovecot@dovecot.org Subject: Re: Is it possible to disable pipelining in imapc? Message-ID: <a6ced659-fa75-60c9-01f7-bfb36e826466@fsn.hu> Content-Type: text/plain; charset=utf-8; format=flowed
On 09/11/2017 12:12 PM, Aki Tuomi wrote:
Is there some reason you can't use normal proxy instead of imap backend? That is,return proxy, host=imap_backend, port=1430? There seems to be no pipeline setting currently for imapc in v2.2.
Yes, because it's a dumb IMAP server, which doesn't implement a lot of things, like SEARCH, FETCH BODYSTRUCTURE and similar. Dovecot is used as a smart proxy, which makes it possible to use it as a fully featured IMAP server.
Subject: Digest Footer
dovecot mailing list dovecot@dovecot.org https://dovecot.org/mailman/listinfo/dovecot
End of dovecot Digest, Vol 173, Issue 28
~$ openssl s_client -connect 192.168.122.14:110 -starttls pop3 CONNECTED(00000003) <snip/> Verify return code: 10 (certificate has expired)
+OK Dovecot ready. USER testuser1 +OK PASS pass +OK Logged in. LIST +OK 11 messages: 1 14 2 14 3 14 4 14 5 14 6 14 7 14 8 14 9 14 10 14 11 14 . QUIT DONE
and no crash occurs. Using Dovecot v2.2.32 (dfbe293)
Aki
On 12.09.2017 09:33, Arvid.Eikas@telenor.com wrote:
Hi,
It is quite easy.
I use a client (thunderbird or windows live mail) set it up to use starttls on standard port 110. Logon and just do a list on the mailbox. The fatal error occurred when I logoff.Arvid
-----Original Message----- From: dovecot [mailto:dovecot-bounces@dovecot.org] On Behalf Of dovecot-request@dovecot.org Sent: 11. september 2017 14:57 To: dovecot@dovecot.org Subject: dovecot Digest, Vol 173, Issue 28
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Today's Topics:
- Re: pop3-login core dump when using TLSSTART on version dovecot-2.2.32 (INTERNAL) (Aki Tuomi)
- Re: Per-user quota (passwd) (Evgeniy Korneechev)
- Re: Per-user quota (passwd) (Aki Tuomi)
- Re: Is it possible to disable pipelining in imapc? (Nagy, Attila)
Message: 1 Date: Mon, 11 Sep 2017 13:57:19 +0300 From: Aki Tuomi <aki.tuomi@dovecot.fi> To: dovecot@dovecot.org Subject: Re: pop3-login core dump when using TLSSTART on version dovecot-2.2.32 (INTERNAL) Message-ID: <cd450054-53c4-2f84-eba7-7ce602c26892@dovecot.fi> Content-Type: text/plain; charset=utf-8
Can you outline the exact steps you perform to get this?
Aki
On 11.09.2017 13:42, Arvid.Eikas@telenor.com wrote:
Hi,
I switched back to 2.2.27 with the same config that I am using for 2.2.32 and it work fine.
Sep 11 11:49:37 imap-login: Info: Login: user=<viboge>, method=PLAIN, rip=88.89.118.45, lip=148.123.160.116, mpid=18709, TLS, session=<v7o22OZYrsdYWXYt> Sep 11 11:49:40 imap(mailuser) Session-ID v7o22OZYrsdYWXYt RemoteIP 88.89.118.45 Maildir /var/nextmail/nfs2.flex14/49/79/841 Info: Logged out in=4518 out=273720 deleted 0 expunged 0 trashed 0 Sep 11 11:49:40 imap-login: Debug: SSL alert: close notify [88.89.118.45]
How could I proceed? Any clue? It is quite annoying to see this entry in the log for each session.
Arvid
-----Original Message----- From: Aki Tuomi [mailto:aki.tuomi@dovecot.fi] Sent: 11. september 2017 09:18 To: Eik?s Arvid; dovecot@dovecot.org Subject: Re: pop3-login core dump when using TLSSTART on version dovecot-2.2.32 (INTERNAL)
Hi!
I tried to reproduce this problem with dovecot-2.2.32 and OpenSSL 1.0.1k and was not able to. I enabled -DREF_CHECK on OpenSSL, but to no avail, the process did not crash. Is there something else you've done?
Aki
On 11.09.2017 08:07, Arvid.Eikas@telenor.com wrote:
Hi,
Here is the gdb output.
Arvid
GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-94.el7 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /local/misc/mail/dovecot-32/libexec/dovecot/pop3-login...done. [New LWP 15894] Core was generated by `dovecot-test/pop3-login'. Program terminated with signal 6, Aborted. #0 0x00007ff0bd9cf1d7 in raise () from /lib64/libc.so.6 Missing separate debuginfos, use: debuginfo-install glibc-2.17-157.el7_3.1.x86_64 (gdb) bt full #0 0x00007ff0bd9cf1d7 in raise () from /lib64/libc.so.6 No symbol table info available. #1 0x00007ff0bd9d08c8 in abort () from /lib64/libc.so.6 No symbol table info available. #2 0x00007ff0bd3c0f2f in engine_unlocked_finish (e=0x1c51c60, unlock_for_handlers=1) at eng_init.c:115 to_return = 1 #3 0x00007ff0bd3c1064 in ENGINE_finish (e=0x1c51c60) at eng_init.c:150 to_return = 1 #4 0x00007ff0be0f9300 in ssl_proxy_deinit () from /local/nextmail/dovecot/lib64/dovecot/libdovecot-login.so.0 No symbol table info available. #5 0x00007ff0be0f4472 in main_deinit () from /local/nextmail/dovecot/lib64/dovecot/libdovecot-login.so.0 No symbol table info available. #6 0x00007ff0be0f479f in login_binary_run () from /local/nextmail/dovecot/lib64/dovecot/libdovecot-login.so.0 No symbol table info available. #7 0x00000000004032da in main (argc=1, argv=0x7ffe3059f3f8) at client.c:356 No locals.
-----Original Message----- From: Aki Tuomi [mailto:aki.tuomi@dovecot.fi] Sent: 8. september 2017 14:08 To: Eik?s Arvid; dovecot@dovecot.org Subject: Re: pop3-login core dump when using TLSSTART on version dovecot-2.2.32 (OPEN)
I assume you mean STARTTLS. Can you provide gdb /path/to/bin /path/to/core and provide output of bt full?
Aki
On 08.09.2017 15:01, Arvid.Eikas@telenor.com wrote:
Hi,
Pop3-login are CORE-dumping when I log on with TLSSTART, I believe the same will happen with imap-logon to, but I have not tested it yet. The TLS session is coming up and it works fine until I log off, then it's core dump. Open sslvesrion is openssl-1.0.2k. We ran dovecot-2.2.27 before we upgraded to dovecote-2.2.32, and that seems to work fine. (not core dumping)
Arvid
LOG Sep 05 14:27:34 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:30 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:30 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:42 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:42 pop3-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Sep 05 14:30:50 pop3-login: Info: Login: user=<tstrand>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=18361, secured, session=<65m8ZXBYtpN/AAAB> Sep 05 14:30:50 pop3-login: Error: ENGINE_finish, bad functional reference count Sep 05 14:30:50 pop3-login: Fatal: master: service(pop3-login): child 18359 killed with signal 6 (core dumped)
From ./crypto/engine/eng_init.c
......... int engine_unlocked_finish(ENGINE *e, int unlock_for_handlers) { int to_return = 1;
/* * Reduce the functional reference count here so if it's the terminating * case, we can release the lock safely and call the finish() handler * without risk of a race. We get a race if we leave the count until * after and something else is calling "finish" at the same time - * there's a chance that both threads will together take the count from 2 * to 0 without either calling finish(). */ e->funct_ref--; engine_ref_debug(e, 1, -1); if ((e->funct_ref == 0) && e->finish) { if (unlock_for_handlers) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); to_return = e->finish(e); if (unlock_for_handlers) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); if (!to_return) return 0; }#ifdef REF_CHECK if (e->funct_ref < 0) { fprintf(stderr, "ENGINE_finish, bad functional reference count\n"); abort();
.........
/* The API (locked) version of "finish" */ int ENGINE_finish(ENGINE *e) { int to_return = 1;
if (e == NULL) { ENGINEerr(ENGINE_F_ENGINE_FINISH, ERR_R_PASSED_NULL_PARAMETER); return 0; } CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); to_return = engine_unlocked_finish(e, 1); CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); if (!to_return) { ENGINEerr(ENGINE_F_ENGINE_FINISH, ENGINE_R_FINISH_FAILED); return 0; } return to_return;}
Message: 2 Date: Mon, 11 Sep 2017 14:48:47 +0300 (MSK) From: Evgeniy Korneechev <ekorneechev@altlinux.org> To: Aki Tuomi <aki.tuomi@dovecot.fi> Cc: dovecot <dovecot@dovecot.org> Subject: Re: Per-user quota (passwd) Message-ID: <2046000051.747964.1505130527842.JavaMail.zimbra@remotesystems.ru> Content-Type: text/plain; charset=utf-8
Hi. But there is one problem...
protocol lda { mail_plugins = " quota autocreate sieve quota" plugin { quota = dict:user::file:/var/vmail/glu_vrem/%u/.quotausage } } protocol imap { mail_plugins = " quota autocreate autocreate imap_quota" plugin { autocreate = INBOX autocreate2 = Sent autocreate3 = Trash autocreate4 = Drafts autocreate5 = Junk autosubscribe = INBOX autosubscribe2 = Sent autosubscribe3 = Trash autosubscribe4 = Drafts autosubscribe5 = Junk quota = dict:user::file:/var/vmail/glu_vrem/%u/.quotausage } }
Users with non-standard quota in passwd-file:
>> administrator:*:95400500:95400513:Administrator:/home/DOM/admini >> strator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >> administrator@email.dom:*:95400500:95400513:Administrator:/home/ >> DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir Others from passwd.
Files ".quotausage" are created in different directories: /var/vmail/glu_vrem/administrator\DOM/.quotausage /var/vmail/glu_vrem/administrator@email.dom/.quotausage And must in the folder "/var/vmail/glu_vrem/administrator"
How fix it?
----- ???????? ????????? -----
??: "Evgeniy Korneechev" <ekorneechev@altlinux.org> ????: "Aki Tuomi" <aki.tuomi@dovecot.fi> ?????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 30 ???? 2017 ? 10:39:16 ????: Re: Per-user quota (passwd) Our solution: userdb { args = /etc/imap.passwd driver = passwd-file override_fields = home=/var/vmail/glu_vrem/%u } userdb { driver = passwd override_fields = home=/var/vmail/glu_vrem/%u }
Users with non-standard quota in passwd-file:
>> administrator:*:95400500:95400513:Administrator:/home/DOM/admini >> strator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >> administrator@email.dom:*:95400500:95400513:Administrator:/home/ >> DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir Others from passwd.
Its works! Thanks.
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 14:40:44 ????: Re: Per-user quota (passwd) Oh you have multiple db's, I missed that.
Remove auth_username_format, and instead
userdb { args = /etc/imap.passwd username_format=%Ln driver = passwd-file
override_fields = home=/var/vmail/glu_vrem/%u }On 29.06.2017 14:35, Evgeniy Korneechev wrote:
with auth_username_format = %Ln:
Jun 28 14:43:41 auth: Debug: master in: USER 1 iivanov.ia@example.com service=lda Jun 28 14:43:41 auth-worker(18369): Debug: passwd(iivanov.ia): lookup Jun 28 14:43:41 auth-worker(18369): Info: passwd(iivanov.ia): unknown user - trying the next userdb Jun 28 14:43:41 auth-worker(18369): Debug: sql(iivanov.ia): SELECT email as user, maildir as home, CONCAT('maildir:', maildir, '/Maildir') as mail, uid, gid,
CONCAT('*:storage=', quota, 'B') AS quota_rule, CONCAT(maildir, '/.sieve') as sieve FROM mail_user WHERE (login = 'iivanov.ia' OR email = 'iivanov.ia') Jun 28 14:43:41 auth-worker(18369): Info: sql(iivanov.ia): unknown userMaybe %Lu?
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 14:10:07 ????: Re: Per-user quota (passwd) Yes.
Aki
On 29.06.2017 14:07, Evgeniy Korneechev wrote:
And if such a user: email (from AD) = ivanov.ia@example.com login (from AD), %n = iivanov %d = DOM %u = iivanov@DOM
?
----- ???????? ????????? ----- > ??: "Aki Tuomi" <aki.tuomi@dovecot.fi> > ????: "dovecot" <dovecot@dovecot.org> > ????????????: ???????, 29 ???? 2017 ? 13:59:05 > ????: Re: Per-user quota (passwd) or use, as I indicated before, > auth_username_format = %Ln > > Aki > > > On 29.06.2017 13:58, Evgeniy Korneechev wrote: >> Hi! >> workaround: >> administrator:*:95400500:95400513:Administrator:/home/DOM/admini >> strator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >> administrator@email.dom:*:95400500:95400513:Administrator:/home/ >> DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >> >> But this is not a solution for 1000 users ... >> Maybe is there extra field "userdb_mail=administrator@email.dom" >> for email to passwd-file? >> >> ----- ???????? ????????? ----- >>> ??: "Aki Tuomi" <aki.tuomi@dovecot.fi> >>> ????: "dovecot" <dovecot@dovecot.org> >>> ????????????: ?????, 28 ???? 2017 ? 12:40:48 >>> ????: Re: Per-user quota (passwd) On 28.06.2017 12:36, Aki >>> Tuomi wrote: >>>> On 28.06.2017 12:25, Evgeniy Korneechev wrote: >>>>> Hello! >>>>> We have passwd=pam, userdb=passwd. >>>>> passdb { >>>>> driver = pam #server was entered domain Active Directory } >>>>> userdb { >>>>> driver = passwd >>>>> override_fields = home=/var/vmail/glu_vrem/%u } >>>>> >>>>> How can i use per-user quota? Only passwd-file? >>>>> >>>>> I tried: >>>>> userdb { >>>>> args = /etc/imap.passwd >>>>> driver = passwd-file >>>>> override_fields = home=/var/vmail/glu_vrem/%u } >>>>> /etc/imap.passwd: >>>>> administrator:*:95400500:95400513:Administrator:/home/DOM/adm >>>>> inistrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>>>> >>>>> Authentication and quota - now OK. But doesn't work sending >>>>> and receiving mail... >>>>> postfix say 'Unknown user'... >>>>> >>>>> >>>>> Turn on auth_debug and auth_verbose and see what it says. >>>>> >>>>> Aki >>> Also you can set auth_username_format = %Ln to force usernames >>> into lowercase without domain. >>> >>> Aki
WBR, Korneechev Evgeniy BaseALT/ALTLinux Team
WBR, Korneechev Evgeniy BaseALT/ALTLinux Team
Message: 3 Date: Mon, 11 Sep 2017 14:51:13 +0300 From: Aki Tuomi <aki.tuomi@dovecot.fi> To: dovecot@dovecot.org Subject: Re: Per-user quota (passwd) Message-ID: <7e86447f-10e6-51a3-ce8a-3c4c8261bac1@dovecot.fi> Content-Type: text/plain; charset=utf-8
Hi! Just so you know, autocreate/autosubscribe is deprecated, you should use
namespace { mailbox INBOX { auto = subscribe } }
can you run
doveadm user administrator@email.dom
to verify that mail_home gets set correctly?
Aki
On 11.09.2017 14:48, Evgeniy Korneechev wrote:
Hi. But there is one problem...
protocol lda { mail_plugins = " quota autocreate sieve quota" plugin { quota = dict:user::file:/var/vmail/glu_vrem/%u/.quotausage } } protocol imap { mail_plugins = " quota autocreate autocreate imap_quota" plugin { autocreate = INBOX autocreate2 = Sent autocreate3 = Trash autocreate4 = Drafts autocreate5 = Junk autosubscribe = INBOX autosubscribe2 = Sent autosubscribe3 = Trash autosubscribe4 = Drafts autosubscribe5 = Junk quota = dict:user::file:/var/vmail/glu_vrem/%u/.quotausage } }
Users with non-standard quota in passwd-file:
>>> administrator:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >>> administrator@email.dom:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir Others from passwd.
Files ".quotausage" are created in different directories: /var/vmail/glu_vrem/administrator\DOM/.quotausage /var/vmail/glu_vrem/administrator@email.dom/.quotausage And must in the folder "/var/vmail/glu_vrem/administrator"
How fix it?
----- ???????? ????????? -----
??: "Evgeniy Korneechev" <ekorneechev@altlinux.org> ????: "Aki Tuomi" <aki.tuomi@dovecot.fi> ?????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 30 ???? 2017 ? 10:39:16 ????: Re: Per-user quota (passwd) Our solution: userdb { args = /etc/imap.passwd driver = passwd-file override_fields = home=/var/vmail/glu_vrem/%u } userdb { driver = passwd override_fields = home=/var/vmail/glu_vrem/%u }
Users with non-standard quota in passwd-file:
>>> administrator:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >>> administrator@email.dom:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir Others from passwd.
Its works! Thanks.
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 14:40:44 ????: Re: Per-user quota (passwd) Oh you have multiple db's, I missed that.
Remove auth_username_format, and instead
userdb { args = /etc/imap.passwd username_format=%Ln driver = passwd-file override_fields = home=/var/vmail/glu_vrem/%u }
On 29.06.2017 14:35, Evgeniy Korneechev wrote:
with auth_username_format = %Ln:
Jun 28 14:43:41 auth: Debug: master in: USER 1 iivanov.ia@example.com service=lda Jun 28 14:43:41 auth-worker(18369): Debug: passwd(iivanov.ia): lookup Jun 28 14:43:41 auth-worker(18369): Info: passwd(iivanov.ia): unknown user - trying the next userdb Jun 28 14:43:41 auth-worker(18369): Debug: sql(iivanov.ia): SELECT email as user, maildir as home, CONCAT('maildir:', maildir, '/Maildir') as mail, uid, gid,
CONCAT('*:storage=', quota, 'B') AS quota_rule, CONCAT(maildir, '/.sieve') as sieve FROM mail_user WHERE (login = 'iivanov.ia' OR email = 'iivanov.ia') Jun 28 14:43:41 auth-worker(18369): Info: sql(iivanov.ia): unknown userMaybe %Lu?
----- ???????? ????????? -----
??: "Aki Tuomi" <aki.tuomi@dovecot.fi> ????: "dovecot" <dovecot@dovecot.org> ????????????: ???????, 29 ???? 2017 ? 14:10:07 ????: Re: Per-user quota (passwd) Yes.
Aki
On 29.06.2017 14:07, Evgeniy Korneechev wrote: > And if such a user: > email (from AD) = ivanov.ia@example.com > login (from AD), %n = iivanov > %d = DOM > %u = iivanov@DOM > > ? > > ----- ???????? ????????? ----- >> ??: "Aki Tuomi" <aki.tuomi@dovecot.fi> >> ????: "dovecot" <dovecot@dovecot.org> >> ????????????: ???????, 29 ???? 2017 ? 13:59:05 >> ????: Re: Per-user quota (passwd) >> or use, as I indicated before, auth_username_format = %Ln >> >> Aki >> >> >> On 29.06.2017 13:58, Evgeniy Korneechev wrote: >>> Hi! >>> workaround: >>> administrator:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >>> administrator@email.dom:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>> userdb_mail=maildir:/var/vmail/glu_vrem/administrator/Maildir >>> >>> But this is not a solution for 1000 users ... >>> Maybe is there extra field "userdb_mail=administrator@email.dom" for email to >>> passwd-file? >>> >>> ----- ???????? ????????? ----- >>>> ??: "Aki Tuomi" <aki.tuomi@dovecot.fi> >>>> ????: "dovecot" <dovecot@dovecot.org> >>>> ????????????: ?????, 28 ???? 2017 ? 12:40:48 >>>> ????: Re: Per-user quota (passwd) >>>> On 28.06.2017 12:36, Aki Tuomi wrote: >>>>> On 28.06.2017 12:25, Evgeniy Korneechev wrote: >>>>>> Hello! >>>>>> We have passwd=pam, userdb=passwd. >>>>>> passdb { >>>>>> driver = pam #server was entered domain Active Directory >>>>>> } >>>>>> userdb { >>>>>> driver = passwd >>>>>> override_fields = home=/var/vmail/glu_vrem/%u >>>>>> } >>>>>> >>>>>> How can i use per-user quota? Only passwd-file? >>>>>> >>>>>> I tried: >>>>>> userdb { >>>>>> args = /etc/imap.passwd >>>>>> driver = passwd-file >>>>>> override_fields = home=/var/vmail/glu_vrem/%u >>>>>> } >>>>>> /etc/imap.passwd: >>>>>> administrator:*:95400500:95400513:Administrator:/home/DOM/administrator:/bin/bash::userdb_quota_rule=*:bytes=10G >>>>>> >>>>>> Authentication and quota - now OK. But doesn't work sending and receiving >>>>>> mail... >>>>>> postfix say 'Unknown user'... >>>>>> >>>>>> >>>>>> Turn on auth_debug and auth_verbose and see what it says. >>>>>> >>>>>> Aki >>>> Also you can set auth_username_format = %Ln to force usernames into >>>> lowercase without domain. >>>> >>>> Aki
WBR, Korneechev Evgeniy BaseALT/ALTLinux Team
Message: 4 Date: Mon, 11 Sep 2017 14:56:28 +0200 From: "Nagy, Attila" <bra@fsn.hu> To: Aki Tuomi <aki.tuomi@dovecot.fi>, dovecot@dovecot.org Subject: Re: Is it possible to disable pipelining in imapc? Message-ID: <a6ced659-fa75-60c9-01f7-bfb36e826466@fsn.hu> Content-Type: text/plain; charset=utf-8; format=flowed
On 09/11/2017 12:12 PM, Aki Tuomi wrote:
Is there some reason you can't use normal proxy instead of imap backend? That is,return proxy, host=imap_backend, port=1430? There seems to be no pipeline setting currently for imapc in v2.2.
Yes, because it's a dumb IMAP server, which doesn't implement a lot of things, like SEARCH, FETCH BODYSTRUCTURE and similar. Dovecot is used as a smart proxy, which makes it possible to use it as a fully featured IMAP server.
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Aki Tuomi
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Arvid.Eikas＠telenor.com