March 2019 - dovecot - dovecot.org

Re: rsync /old/server new/server ?
by Voytek Eymont 08 Mar '19

08 Mar '19

On Fri, March 8, 2019 10:45 pm, Aki Tuomi via dovecot wrote: > > On 8.3.2019 13.44, Voytek Eymont via dovecot wrote: > >> I have Centos 7 with dovecot/postfix/mysql Maildir >> >> >> I want to bring in a new server, new server will have same hostname as >> current, but, different IP >> >> I was intending to >> rsync -avzhe ssh vmail@oldserver:/var/vmail/vmail1 /var/vmail/vmail1 >> >> and, then, re run as necessary when/if mail still arrives on old server >> >> >> is that "a good plan" ...? >> >> TIA, V >> >> > Yeah, it's ok as long as you haven't switched to new server. Aki, thanks I'm not certain I understand your comment properly I currently have server 'geko' intention was to change A record to assign geko to new IP/server, assign new hostname to oldserver A record I guess I;ll still get some emails delivered to oldserver with new hostname/old ip for 24 hours or so after aA record change ? so, I was going to re run rsync 2 or 3 times over the first 24 hours or so ? are you saying NOT to rsync once A record changed ? sorry for being slow (sorry for sending not to list...)

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how to enable PowerDNS/Weakforced with Fedora and sendmail
by Robert Kudyba 07 Mar '19

07 Mar '19

We have dovecot-1:2.3.3-1.fc29.x86_64 running on Fedora 29. I'd like to test wforce, from https://github.com/PowerDNS/weakforced. I see instructions at the Authentication policy support page, https://wiki2.dovecot.org/Authentication/Policy I see the Required Minimum Configuration: auth_policy_server_url = http://example.com:4001/ auth_policy_hash_nonce = localized_random_string But when I search for these directives, they're not found: grep auth_policy_server_url /etc/dovecot/conf.d/* Are these to be added to the /etc/dovecot/conf.d/10-auth.conf file? Does anyone know if a good tutorial?

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Strange behaviour with BLF-CRYPT and SHA*-CRYPT pasword schemas
by Kristijan Savic - ratiokontakt GmbH 07 Mar '19

07 Mar '19

Greetings, this is less of a bug report or a help request, but we would like to know if someone can explain the following: Environment: Centos 7 with Dovecot 2.3.4-2 default_pass_scheme = BLF-CRYPT password hash in database : BLF-CRYPT login = works default_pass_scheme = SHA512 or SHA256-CRYPT password hash in database : BLF-CRYPT login = also works default_pass_scheme = BLF-CRYPT password hash in database : SHA512-CRYPT login = does not work Can someone explain these discrepancies? -- Kind regards, Kristijan Savic -------------------------------------------------------- ratiokontakt GmbH Biegenhofstr. 13 96103 Hallstadt Telefon: +49 (0) 951 9 35 35 - 0 Telefax: +49 (0) 951 9 35 35 - 902 Internet: www.ratiokontakt.de Geschäftsführer: Dr. Nils Kaufmann, Stefan Kraft Amtsgericht Bamberg - HRB 3757 -------------------------------------------------------- ratiokontakt ist zertifiziert nach DIN ISO/IEC 27001

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Sieve fileinto copies messages instead of moving them
by Michael Goth 07 Mar '19

07 Mar '19

Hi, we're running Doveocot 2.3.4.1 with Pigeonhole, from repo.webflow.org. As far as I understand the RFC for 'fileinto', the following Sieve script should move a message either into the folder "SPAM" or "MaybeSPAM": require ["fileinto"]; # rule:[SPAM] if header :contains "subject" "SPAMSPAM" { fileinto "SPAM"; } # rule:[SPAMSPAM] if header :contains "subject" "SPAM" { fileinto "MaybeSPAM"; } But when I receive a message with subject "SPAMSPAM", the message turns up in "SPAM" and "MaybeSPAM". Is this expected behaviour? Thanks! Michael -- Michael Goth .webflow GmbH Geschäftsführer: Andreas Schrei Wasserburger Straße 4 D - 83352 Altenmarkt a. d. Alz Amtsgericht Traunstein HRB 18537 E-Mail: mg(a)webflow.de Tel: +49 (0) 8621 - 99989 - 26 Fax: +49 (0) 8621 - 99989 - 28 Web: www.webflow.de

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Director 2.3.5: openssl_iostream_handle_error
by Tom Sommer 07 Mar '19

07 Mar '19

Thanks for 2.3.5 - it fixed a lot of stuff :) I see this Panic in my Director logs now, randomly and rarely: Mar 07 11:01:29 pop3-login: Panic: file iostream-openssl.c: line 586 (openssl_iostream_handle_error): assertion failed: (errno != 0) Mar 07 11:01:29 auth: Warning: auth client 13625 disconnected with 19 pending requests: EOF Mar 07 11:01:29 pop3-login: Fatal: master: service(pop3-login): child 13625 killed with signal 6 (core not dumped - https://dovecot.org/bugreport.html#coredumps - set /proc/sys/fs/suid_dumpable to 2) Hoping the above is enough to debug -- Tom

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director in rings
by Maciej Milaszewski IQ PL 07 Mar '19

07 Mar '19

Hi Maby stupid question :) It possible to have 3 directors (frontend) but without rings ? All directors connect to this same dovecot (backend) - all backad have this same login_trusted_networks -- Maciej Miłaszewski IQ PL Sp. z o.o. Starszy Administrator Systemowy

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doveadm expunge recursive?
by Maria Arrea 07 Mar '19

07 Mar '19

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Probleme with replication and shared mailbox
by Laurent BRAULT (OSILOG) 06 Mar '19

06 Mar '19

Hi Folks ! I finaly resolve my problem ! 😊 First of all I had to modify namespaces : ####################################################### namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = INBOX/ separator = / subscriptions = yes type = private } namespace partage { list = children location = maildir:/mnt/mail/vmail/%%d/%%n:INDEXPVT=/mnt/mail/vmail/%d/%n/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } ####################################################### Also change the « replication_dsync_parameters » in aim to syncronize only the Private namespace : ==> replication_dsync_parameters = -d -n inbox -l 30 -U I change the sharing command from « acl set » to « acl add » AND THE MOST IMPORTANT ==> RUN THE COMMAND ON THE 2 SERVER because of active/active réplication… ==> doveadm acl add -u user2(a)exemple.fr INBOX user=user1(a)exemple.fr admin create delete expunge insert lookup post read write write-deleted write-seen Hope this may help if someone is faced to the same problem Best regards Laurent

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“Message cannot be displayed because of the way it is formatted” iOS
by James Brown 06 Mar '19

06 Mar '19

Have updated our mail server and are now running Dovecot 2.3.4. Things are mostly working OK, but occasionally I have users on latest iOS getting this message: “this message cannot be displayed because of the way it is formatted. Ask the sender to send it again using a different format or email program. multipart/alternative” The email seems to open OK on the macOS version of Mail.app. Also getting “Loading...” displayed in body section of the app with content never displayed. Most emails are fine, but just get this strange ones occasionally. Our previous mail server was much older, with older version of Dovecot, etc. This server never used to have these issues. Just wondering if anyone has any ideas or suggestions? Can’t see anything in the logs. Thanks, James.

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getrandom() before forking daemon is blocking init system
by Axel Burri 05 Mar '19

05 Mar '19

Hello When booting from a slow machine, I can observe dovecot blocking the whole boot process. I traced it down to the getrandom() system call in lib/randgen.c, which blocks until the random number generator is initialized (dmesg "random: crng init done"). This can take up to three minutes (!) on my machine, as there is not much entropy available (no hardware RNG, network VPN is also waiting for random). Unfortunately dovecot calls getrandom() before forking a daemon, which as a consequence blocks the whole init process (OpenRC on Gentoo Linux). I believe this behavior has changed in kernel 4.14: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… Quoting getrandom(2): "If the urandom source has not yet been initialized, then getrandom() will block, unless GRND_NONBLOCK is specified in flags." Dovecot: 2.3.4.1 (f79e8e7e4) Linux: 4.19.26-gentoo #2 SMP Thu Feb 28 20:30:23 CET 2019 x86_64 AMD G-T40E Processor AuthenticAMD GNU/Linux Regards, Axel

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