April 2016 - dovecot - dovecot.org

Re: WP8/Windows 10 mail app can't login, tries double auth
by Joseph Tam 29 Apr '16

29 Apr '16

Attila Nagy writes: > Are there anybody who could make WP8 (and W10 desktop clients it seems) > devices working with Dovecot's POP3 server? > > The conversation looks like this: > S +OK ready > C CAPA > S +OK > S CAPA > S TOP > S UIDL > S RESP-CODES > S PIPELINING > S AUTH-RESP-CODE > S USER > S SASL PLAIN > S . > C AUTH > S +OK > S PLAIN > S . > C AUTH PLAIN > S + > C <base64 auth string) > S +OK[space] > C USER username > S -ERR unimplemented > > First I thought the extra space after that OK causes this, but removing > it changed nothing. > > So these devices try to log in with AUTH PLAIN, then even after a > successful login they want to log in again with USER, which gets rejected. I dimly remember some Windows clients preferring either "LOGIN" or "PLAIN" style mechanism. Have you tried allowing "LOGIN" style authentication? auth_mechanisms = plain login Joseph Tam <jtam.home(a)gmail.com>

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Doveadm Replicator problem with PAM passdb
by Adam Joesbury 28 Apr '16

28 Apr '16

Hi Everyone, We are running two CentOS 7.2 servers with Sendmail 8.14.7 V10 and Dovecot 2.2.10 installed on both and are trying to configure Master-Master Replication using doveadm replicator. We are using system users with PAM authentication but are receiving the following fatal error when dsync tries to run: doveadm(user): Fatal: /var/run/dovecot/auth-userdb: Configured passdbs don't support crentials lookups (to see if user is proxied, because doveadm_port is set). Please could someone confirm whether it is possible to configure replication using PAM passdb as the above error seems to suggest it isn't but we have come across various people online who seem to have it working. I don't know whether we need to create a master user or whether we need to create a separate password file with a directory of all of our user's passwords? We do have all the user passwords as they are only internal accounts that we are servicing. Thanks in advance Output of dovecot -n: # 2.2.10: /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-327.13.1.el7.x86_64 x86_64 CentOS Linux release 7.2.1511 (Core) auth_mechanisms = plain login auth_socket_path = /var/run/dovecot/auth-userdb doveadm_password = secret doveadm_port = 12345 login_greeting = POP3-IMAP server ready. mail_location = maildir:~/Maildir mail_plugins = " notify replication" mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox "Deleted Items" { auto = subscribe special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox "Junk E-mail" { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } prefix = } passdb { args = session=yes setcred=yes failure_show_msg=yes dovecot driver = pam } plugin { mail_replica = tcp:VMAILSERVER1:12345 } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0666 } } service auth { unix_listener auth-userdb { mode = 0777 } } service doveadm { inet_listener { port = 12345 } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 } } ssl_ca = </etc/pki/tls/certs/chain.crt ssl_cert = </etc/pki/tls/certs/ca.crt ssl_key = </etc/pki/dovecot/private/dovecot.pem ssl_verify_client_cert = yes userdb { driver = passwd } verbose_ssl = yes

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managesieve proxying not working
by Hawk Chen 28 Apr '16

28 Apr '16

Hi, I'm setting up the directors for proxying pop3/imap/lmtp/sieve. pop3/imap/lmtp proxying work fine, but sieve not working. The error messages in maillog look not using proxying but local passdb. Error message: Apr 03 12:09:25 managesieve-login: Info: Aborted login (no auth attempts in 0 secs): user=<>, rip=10.1.1.4, lip=10.1.1.201, session=<+SIcx4wvRQAKAQEE> sql in /etc/dovecot/dovecot-sql.conf.ext: password_query = SELECT NULL as password, host, 'Y' as nopassword, 'Y' as proxy FROM mailbox WHERE username = '%u' AND active='1' doveconf -n output is as follows, # 2.2.10: /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-327.10.1.el7.x86_64 x86_64 CentOS Linux release 7.2.1511 (Core) director_mail_servers = 10.1.4.5 10.1.4.6 director_servers = 10.1.1.1 10.1.1.2 lmtp_proxy = yes log_path = /var/log/dovecot.log login_greeting = DNT Mail Server 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 ihave mbox_write_locks = fcntl 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 { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 lmtp sieve service director { fifo_listener login/proxy-notify { mode = 0666 } inet_listener { port = 9090 } unix_listener director-userdb { mode = 0600 } unix_listener login/director { mode = 0666 } } service imap-login { executable = imap-login director service_count = 0 } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { executable = managesieve-login director service_count = 0 } service pop3-login { executable = pop3-login director service_count = 0 } ssl = required ssl_cert = </etc/postfix/itsnow.crt ssl_key = </etc/postfix/itsnow.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { driver = passwd } protocol lmtp { auth_socket_path = director-userdb } Regards, Hawk

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WP8/Windows 10 mail app can't login, tries double auth
by Nagy, Attila 27 Apr '16

27 Apr '16

Hi, Are there anybody who could make WP8 (and W10 desktop clients it seems) devices working with Dovecot's POP3 server? The conversation looks like this: S +OK ready C CAPA S +OK S CAPA S TOP S UIDL S RESP-CODES S PIPELINING S AUTH-RESP-CODE S USER S SASL PLAIN S . C AUTH S +OK S PLAIN S . C AUTH PLAIN S + C <base64 auth string) S +OK[space] C USER username S -ERR unimplemented First I thought the extra space after that OK causes this, but removing it changed nothing. So these devices try to log in with AUTH PLAIN, then even after a successful login they want to log in again with USER, which gets rejected. The only solution here seems to be giving back -ERR to the client's AUTH command, which makes it try USER instead. I'm not aware of any configuration options which makes this possible. Any other ideas? Thanks,

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Creating Dovecot Master user throws "Username character disallowed by auth_username_chars : 0x2a " error
by David Okwii 27 Apr '16

27 Apr '16

Hello, Am trying to create a master user on dovecot. However, it throws dovecot: auth: plain(?,127.0.0.1): Username character disallowed by auth_username_chars: 0x2a (username: loginuser*master) ". #telnet localhost 143 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN 1 login loginuser*master mypassword 1 NO [AUTHENTICATIONFAILED] Authentication failed. # log output dovecot: auth: plain(?,127.0.0.1): Username character disallowed by auth_username_chars: 0x64 (username: master) # cat passwd.master master:{SHA}LORtG60Uqg2bPSlOB8PW2cLI0TE= #And here's the output of my dovecot -n # 2.0.16: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 8.2-RELEASE amd64 auth_master_user_separator = * disable_plaintext_auth = no mail_location = maildir:~/Maildir namespace { inbox = yes location = prefix = INBOX. separator = . type = private } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } passdb { args = /usr/local/etc/dovecot/passwd.master driver = passwd-file master = yes } protocols = imap pop3 service auth { client_limit = 6000 } service imap { process_limit = 2048 vsz_limit = 1256 M } service pop3 { process_limit = 2048 } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } protocol pop3 { pop3_uidl_format = UID%u-%v } I don't know what am doing wrong. Any help would be welcome. Thanks -- Thanks & regards, David Okwii, Mobile(default): +256-791-040-262 Christ in me the Hope of Glory(Col.1:27)

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Option to not add "Received" header ?
by Florent B 27 Apr '16

27 Apr '16

Hi everyone, I use Dovecot in lmtp mode to receive mails. I would like an option to tell Dovecot to not add a "Reveived" header on each server (I use a director, so Director also adds this header). Is it possible to do this ? Or could it be a future feature ? Thank you. Florent

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Crash: setannotation Trash "/vendor/cmu/cyrus-imapd/expire" ("value.shared" NIL)
by Heiko Schlittermann 27 Apr '16

27 Apr '16

Hi, Using 2.2.9 (ubuntu 14.04 LTS) and sending the following command, the server crashes when I try to delete an annotation: … login … C: 2 setannotation Trash "/vendor/cmu/cyrus-imapd/expire" ("value.shared" NIL) Apr 27 09:29:16 backend1 dovecot: imap-login: Login: user=<heiko>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=6651, secured Apr 27 09:29:16 backend1 dovecot: imap(heiko): Fatal: master: service(imap): child 6651 killed with signal 11 (core dumped) Sending a real value it works: … login … C: 2 setannotation Trash "/vendor/cmu/cyrus-imapd/expire" ("value.shared" "27") S: 2 OK Completed. Is this a known bug that is fixed in later releases? Best regards from Dresden/Germany Viele Grüße aus Dresden Heiko Schlittermann -- SCHLITTERMANN.de ---------------------------- internet & unix support - Heiko Schlittermann, Dipl.-Ing. (TU) - {fon,fax}: +49.351.802998{1,3} - gnupg encrypted messages are welcome --------------- key ID: F69376CE - ! key id 7CBF764A and 972EAC9F are revoked since 2015-01 ------------ -

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apt pinning specific dovecot version
by Regan Jelčić 27 Apr '16

27 Apr '16

I currently have the dovecot-core package from wheezy-backports pinned on one of my servers to version '2.2.9', which has been working great. I now want to upgrade that to the newest version under wheezy-backports which is: dovecot-core (1:2.2.13-11~bpo70+1) but I can't figure out how to get do it. I've tried a few different formats of the name but apt-get update then apt-get dost-upgrade doesn't pick up the new version - it ignores it when trying to do an update. This is what I've got in my apt preferences and pin files... /etc/apt/preferences Explanation: Stop ALL wheezy-backports updating system. Package: * Pin: release a=wheezy-backports,n=wheezy-backports Pin-Priority: 100 /etc/apt/preferences.d/dovecot.pref Explanation: Promote wheezy-backports version of Dovecot only Package: dovecot-core /2\.2\.9/ Pin: release a=wheezy-backports Pin-Priority: 500 Can anyone advise how I get it to pull the newer version?? Thanks,

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Re: dovecot Digest, Vol 156, Issue 44
by Ron Cleven 27 Apr '16

27 Apr '16

> On 26 Apr 2016, at 21:52, Hauke Fath<hf(a)spg.tu-darmstadt.de> wrote: >> > >> >On Tue, 26 Apr 2016 18:20:00 +0300, Timo Sirainen wrote: >>> >>This should be a good release.:) >> > >> >Would this release address the "reappearing emails" issue that 2.2.23 >> >introduced? > I guess you're talking about replication. I'm not aware of any specific change in v2.2.23 that could have even potentially caused it. I also don't know how I could reproduce it. Can you use git bisect to find out the specific change that broke it? > > The only thing I remember even remotely related to this ishttps://github.com/dovecot/core/commit/950a6e61d6c2dac961ce031bdd8b2895bc… but that was supposed to only fix things and I can't think of how it might break things. > > One possibility is that nothing broke this in v2.2.23. I've heard about the same issue for a long time. Maybe you just suddenly started having this problem now and it would have happened even with the old Dovecot version. I was (perhaps one of) the people who reported "reappearing emails" with 2.2.10 in the context of Maildir with replication under CentOS 7. I had spent a great deal of time making it reproducible, difficult because there was a timing element. In that context, 2.2.23 absolutely fixed the problem which was absolutely related to a timing issue with replication. If I remember right, this person was reporting a similar-sounding problem, but it did not involve replication and was not under CentOS 7. Creating a script that reproduces the problem is an important first step. Good luck.

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Released Pigeonhole v0.4.14 for Dovecot v2.2.24.
by Stephan Bosch 27 Apr '16

27 Apr '16

Hello Dovecot users, The most important feature that this new release adds is the IMAPSIEVE capability, which allows executing Sieve scripts at IMAP events. It also adds the ability to obtain trace logs from Sieve execution at actual delivery (or from IMAP), rather than only using the sieve-test command line tool. This release also fixes a bug in the Sieve extprograms plugin that has been bothering a few people for a while now. Changelog v0.4.14: * The address test now allows specifying the X-Original-To header. + Implemented the Sieve imapsieve extension and its IMAP counterpart (RFC 6785) as a set of plugins. This allows running Sieve scripts at IMAP activity, rather than at delivery. There are also facilities for the familiar sieve_before/sieve_after administrator scripts. A user script is defined for a mailbox using an IMAP METADATA entry, whereas administrator scripts are configured using mailbox matching rules defined in the plugin settings. + Adjusted the Sieve ihave extension to allow capability tests to be performed at runtime. This way, scripts can be written that work both at delivery and from IMAP. + Implemented support for runtime trace debugging. This means that detailed information about which commands, actions and tests are performed is written to a file. That file is created in the configured directory, but only if that directory exists. This way, a particular user can be easily singled out for debugging. This works much like the Dovecot rawlog facility. The trace output is identical to what is produced using sieve-test with its "-t" command line option. + Added a "sieve_user_email" setting that configures the user's primary email address. This is mainly useful to have a user email address available in IMAP, where envelope data is unavailable. + Implemented the dovecot-specific "vnd.dovecot.report" extension. This allows sending report messages in the Message Abuse Reporting Format (RFC 5965). - extprograms plugin: Fixed epoll() panic caused by closing the output FD before the output stream. - Made sure that the local part of a mail address is encoded properly using quoted string syntax when it is not a dot-atom. The release is available as follows: http://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.14.ta… http://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.14.ta… Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for more information. Have fun testing this release and don't hesitate to notify me when there are any problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl

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