- dovecot - dovecot.org

replication fails with "Error: sync: Unknown user in remote" but user shows up in doveadm user "*"
by Arnaud Abélard 22 Apr '22

22 Apr '22

Hello, I've been trying to replicate a production server (debian buster, dovecot 2.3.4.1). But I nothing is actually being replicated and for each attempted user the message "Error: sync: Unknown user in remote" is being logged. The ldap settings are actually the same on both server (source and destnation) and the "unknown user" is actually showing up in doveadm user "*" on the destination server. I had already replicated 2 servers and used the same settings. Am I missing something obvious here? Thanks, Arnaud -- Arnaud Abélard Responsable pôle Système et Stockage Service Infrastructures DSIN Université de Nantes -

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disabling namespace in special-userdb on dovecot 2.2
by Marc 22 Apr '22

22 Apr '22

Currently I have such special-userdb file test:x:11111:22222:testaccount_descr:/home/users/testaccount:/bin/false:userdb_mail=mbox:~/mbox:INBOX=/home/users/testaccount/inbox:INDEX=/home/users/testaccount/index However I am still getting errors of a default configured namespace that still seems to be active. Is there a way to disable this namespace or reconfigure this in the userdb file? (When I was testing this on a dovecot 2.3 I did not run into this)

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Both Roundcube and Squirrelmail webmail cannot search for anything + cannot open many emails because there are more than 200, 000 emails in my Inbox
by Turritopsis Dohrnii Teo En Ming 20 Apr '22

20 Apr '22

Subject: Both Roundcube and Squirrelmail webmail cannot search for anything + cannot open many emails because there are more than 200,000 emails in my Inbox Good day from Singapore, I am using Virtualmin/Webmin web hosting control panel in my Virtual Private Servers (VPS) in Germany. [1st issue] =========== Both Roundcube and Squirrelmail webmail cannot search for anything because there are more than 200,000 emails in my Inbox. Roundcube webmail doesn't show any error. Search results simply don't show up after a long time. However, I got the following error in Squirrelmail webmail (using Firefox web browser). ERROR: Connection dropped by IMAP server. Query: SEARCH CHARSET ISO-8859-1 ALL SUBJECT "keyword" [2nd issue] ============ Both Roundcube and Squirrelmail webmail cannot open many emails because there are more than 200,000 emails in my inbox. Roundcube webmail gives the following error: SERVER ERROR! Could not load message from server. Squirrelmail webmail gives the following error: ERROR: Connection dropped by IMAP server. Query: FETCH 1 BODY[HEADER] My IMAP server is Dovecot version 2.2.36. Virtualmin version is 6.17. Webmin version is 1.990. Usermin version is 1.834. Authentic theme version is 19.85.1. However, using Samsung Email app on my Samsung Galaxy A32 5G Android phone, I am able to open emails it seems. Only Roundcube and Squirrelmail webmail appears to have issues opening emails. Using Samsung Email app, I have deleted around 6,000 useless emails so far but still unable to search and open emails. Looks like I need to delete more and more useless emails. How do I solve the above problems? I am looking forward to your reply. Thank you very much. Mr. Turritopsis Dohrnii Teo En Ming, 44 years old as of 17 April 2022 Sunday, is a TARGETED INDIVIDUAL living in Singapore. He is an IT Consultant with a Systems Integrator (SI)/computer firm in Singapore. He is an IT enthusiast. -----BEGIN EMAIL SIGNATURE----- The Gospel for all Targeted Individuals (TIs): [The New York Times] Microwave Weapons Are Prime Suspect in Ills of U.S. Embassy Workers Link: https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html ******************************************************************************************** Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 14 Feb 2019 and refugee seeking attempts at the United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 2019) and Australia (25 Dec 2019 to 9 Jan 2020): [1] https://tdtemcerts.wordpress.com/ [2] https://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming -----END EMAIL SIGNATURE-----

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RE: Bad Signature - Both Roundcube and Squirrelmail webmail cannot search fos r anything + cannot open many emails because there are more than 200, 000 emails in my Inbox
by Tuomi, Aki 20 Apr '22

20 Apr '22

xxzfzzxxxzZSent from my Galaxys fcccc -------- Original message --------From: Turritopsis Dohrnii Teo En Ming <ceo.teo.en.ming(a)gmail.com> Date: 20/04/2022 16.51 (GMT+02:00) To: Shawn Heisey <elyograg(a)elyograg.org> Cc: ceo(a)teo-en-ming-corp.com, Dovecot <dovecot(a)dovecot.org> Subject: Re: Bad Signature - Both Roundcube and Squirrelmail webmail cannot search for anything + cannot open many emails because there are more than 200, 000 emails in my Inbox I believe Gmail is using IMAP. The instructions for configuring Gmailemail accounts in Outlook specifically mention IMAP server hostname:imap.gmail.comTCP Port 993, SSLRegards,Mr. Turritopsis Dohrnii Teo En MingTargeted Individual in Singapore20 Apr 2022 WednesdayOn Wed, 20 Apr 2022 at 09:26, Shawn Heisey <elyograg(a)elyograg.org> wrote:>> On 4/19/2022 5:12 PM, Turritopsis Dohrnii Teo En Ming wrote:> > It is not true that no email system was ever designed for 200,000 or> > more emails.> >> > If I did not remember wrongly, more than 10 years ago, I used to have> > a Gmail email account, with 4-5 MILLION email messages in the Inbox.> > There was no problem searching even though I had 4-5 MILLION email> > messages in the Inbox.>> If you were using either a Google app or the gmail.com website to access> that inbox, then it doesn't compare. I really doubt that either of> those uses the IMAP protocol. They would be using something proprietary> that is highly optimized for the way that Google stores data and> leverages the enormous amounts of computing power that they maintain.>> I would bet that if you accessed a gmail folder with 5 million messages> in it using IMAP, you would have similar problems with it to those that> have been described here in this thread. IMAP is a beautiful protocol,> but I don't think it was designed for handling that many messages.>> Thanks,> Shawn>

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temporary block incoming messages to specific user
by Marc 20 Apr '22

20 Apr '22

Is it possible to block incoming messages from being delivered to a specific user in such a way that the MTA will try again later. I do not want these message to bounce. (eg while doing some manual maintenance on the user)?

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JMAP Support Status
by David Klingenberg 15 Apr '22

15 Apr '22

Hello, has there been any development on JMAP support in Dovecot? Also, I have noticed you planned to do some generic optimizations which could possibly make it easier to implement JMAP. What is status on that? https://dovecot.org/pipermail/dovecot/2021-March/121620.html Best Regards, David Klingenberg

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NFS Config vs Ceph / GlusterFS
by dovecot＠ptld.com 15 Apr '22

15 Apr '22

Do all of the configuration considerations pertaining to using NFS on https://doc.dovecot.org/configuration_manual/nfs/ equally apply to using something like Ceph / GlusterFS? And if people wouldn't mind chiming in with which (NFS, Ceph & GlusterFS) they feel is better for maildir mail storage on dedicated non-container servers? Which is better for robustness / stability? Which is better for speed / performance? Thank you.

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how to change the name of the dovecot pam file being used?
by Marc 15 Apr '22

15 Apr '22

Is there a way to configure the name of the pam file?

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ssl_min_protocol appears to be ignored?
by Myriam Luce 14 Apr '22

14 Apr '22

Hi, I'm trying to enable TLS1.0 support for an old client. Per dovecot -n # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.2 () # OS: Linux 5.4.0-107-generic x86_64 Ubuntu 20.04.4 LTS ext4 # Hostname: In 10-ssl.conf, I have set ssl_min_protocol = TLSv1 (It doesn't show in dovecot -n, I suspect because it's equal to default value?) I restarted dovecot with systemctl. Then, from another machine, openssl s_client -connect zeserver.com:993 -tls1 fails with this output: CONNECTED(00000003) 140166917489984:error:141E70BF:SSL routines:tls_construct_client_hello:no protocols available:../ssl/statem/statem_clnt.c:1112: --- no peer certificate available --- No client certificate CA names sent --- SSL handshake has read 0 bytes and written 7 bytes Verification: OK --- New, (NONE), Cipher is (NONE) Secure Renegotiation IS NOT supported Compression: NONE Expansion: NONE No ALPN negotiated Early data was not sent Verify return code: 0 (ok) --- The same command with -tls1_2 works as intended (certificate printing, imap prompt). Am I forgetting something somewhere, or is this an actual bug?

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Re: Dovecot and OAuth2 and gmail
by Richard 14 Apr '22

14 Apr '22

> Date: Wednesday, April 13, 2022 17:10:36 -0400 > From: Steve Litt <slitt(a)troubleshooters.com> > > Hi all, > > I'm not sure Dovecot has anything to do with this, but I'd rather > ask and know for sure. > > I do the following: > > Gmail IMAP=>fetchmail=>procmail=>Dovecot IMAP > > Then, I view my Dovecot hosted email with Claws-Mail. > > I understand that on May 31, 2022, current methods to access Gmail > IMAP will turn into pumpkins because of insistence on OAuth2. Do I > need to do anything to Dovecot to get ready for this Mass > Extinction Event? > > Do you think I'll need to dump fetchmail for something else? > While it's a little obtuse, a reading of: <https://support.google.com/accounts/answer/6010255#zippy=%2Cif-less-secure-…> specifically the "fix problems" / "use an app password" section, would seem to indicate that app passwords will continue to work for gmail access after May 30. What google is turning off is "third-party apps or devices which ask you to sign in to your Google Account using only your username and password", i.e., using your google login password with "less secure" 3rd party apps. So, you need to set up, and configure your application to use, app passwords.

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