- dovecot - dovecot.org

Patch: safeguard against too large value for uid being sent to solr for single mailbox searches
by John Fawcett 09 Jan '22

09 Jan '22

Hi I'm reposting a patch for solr integration which I have been applying locally. It applies against 2.3.17.1. Dovecot already has a mechanism when doing solr fts searches on multiple mailboxes that prevents a too large value for maximum rows being sent to solr. #define SOLR_MAX_MULTI_ROWS 100000 (defined and used in plugins/fts-solr/fts-backend-solr.c) However on single mailbox searches Dovecot uses the last uid of the mailbox, which can be too large for solr. My suggested patch is to also limit maximum rows to return on single mailbox searches. Here is the patch: diff -ur dovecot-2.3.17.1-orig/src/plugins/fts-solr/fts-backend-solr.c dovecot-2.3.17.1-new/src/plugins/fts-solr/fts-backend-solr.c --- dovecot-2.3.17.1-orig/src/plugins/fts-solr/fts-backend-solr.c 2021-12-03 12:48:47.000000000 +0100 +++ dovecot-2.3.17.1-new/src/plugins/fts-solr/fts-backend-solr.c 2022-01-09 01:33:23.401341959 +0100 @@ -837,7 +837,7 @@ str = t_str_new(256); str_printfa(str, "wt=xml&fl=uid,score&rows=%u&sort=uid+asc&q=%%7b!lucene+q.op%%3dAND%%7d", - status.uidnext); + I_MIN(status.uidnext,SOLR_MAX_MULTI_ROWS)); prefix_len = str_len(str); if (solr_add_definite_query_args(str, args, and_args)) { John

1 0

Can't log in from Evolution or Roundcube
by Ken Wright 09 Jan '22

09 Jan '22

When I try to log in to my mail server (ubuntu 20.04, Postfix 3.4.13, Dovecot 2.3.7.2) I get a response saying "Source stream returned no data”. At least to me, that's not particularly informative. Is it any more informative to anyone else? Ken

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Sv: banning
by Sebastian Nielsen 08 Jan '22

08 Jan '22

I would say, lock accounts to for example IP address, ASN or GeoIP. This can be accomplished simply by a custom login handler, which also checks IP against database. And first time users, and those who change country/ISP/IP have to simply logon to a web interface (where 2FA can be required and also Captcha) and add their IPs/ASNs/Geo's. For a larger user base, I would recommend GeoIP and no web interface, save country of first login to database, and subsequent logins must originate from same country. Users that want to reset have to contact support. If you are a web hotel who only sell service to a specific country at all, lock the ports in firewall to that GeoIP. For smaller user base, like 50-100 users, I would recommend locking to ASN and providing a web interface where multiple ASN can be added. So people syncing from mobile and home can succeed. For very small user base, like 10's of users, just plan lock to IP. By connecting IP to accounts, you greatly reduce the attack surface.

1 0

TLS connection closed unexpectedly
by Ken Wright 08 Jan '22

08 Jan '22

I reinstalled Dovecot this evening, because I haven't been able to receive emails recently. After configuring and adjusting for the use of PostfixAdmin, I get the following error message in Evolution:; Failed to open folder. The reported error was "Failed to authenticate: TLS connection closed unexpectedly". Does anyone recognize this error? Ken

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Update from 2.3.16 to 2.3.17 Received invalid SSL certificate: unable to get certificate CRL
by Salatiel Filho 08 Jan '22

08 Jan '22

Hi, after updating from dovecot.x86_64 2:2.3.16-2 to 2:2.3.17.1-1 on AlmaLinux 8 my dovecot replication stopped working. Log is full of Error: doveadm server disconnected before handshake: Received invalid SSL certificate: unable to get certificate CRL: /CN=my.domain.redacted (check ssl_client_ca_* settings?) No configuration has changed on my side. My certificate is a wildcard certificate ( not sure if related ). I am also replicating over tcps. Anyone else facing this issue? Atenciosamente/Kind regards, Salatiel

1 0

Sieve scripts igniored
by Sam R 07 Jan '22

07 Jan '22

Hello, I have an issue with Sieve plugin, I can drive rules remotely with sieve:// myserver.fr:4190/?tls=YES, the rules are well created under /home/vmail/name.firstname, but these are never executed. I have also read https://doc.dovecot.org/configuration_manual/sieve/troubleshooting/, but I don't see any evident mistake. here is my dovecot -n : # 2.3.13 (89f716dc2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.13 (cdd19fe3) # OS: Linux 5.10.0-8-amd64 x86_64 Debian 11.0 ext4 # Hostname: mail.xxx.fr auth_debug = yes auth_gssapi_hostname = $ALL auth_krb5_keytab = /etc/dovecot/dovecot.keytab auth_mechanisms = login plain gssapi mail_location = maildir:/home/vmail/%n/Maildir/ mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relationa l regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttex t 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 { driver = pam } passdb { driver = pam } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = " imap lmtp sieve pop3" service lmtp { executable = lmtp -L unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0666 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } } ssl = required ssl_cert = </etc/letsencrypt/live/mail.xxx.fr/fullchain.pem ssl_client_ca_dir = /etc/ssl/certs ssl_client_ca_file = /etc/letsencrypt/live/mail.xxx.fr/chain.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } userdb { args = uid=vmail gid=vmail home=/home/vmail/%u allow_all_users=yes driver = static } userdb { driver = passwd } protocol lmtp { mail_plugins = " sieve" } protocol lda { mail_plugins = " sieve" } Thanks for helping. kind regards. Samuel

3 3

feature-request: make received-header on submission optional or at least drop the ip in it
by dc-ml＠dvl.werbittewas.de 07 Jan '22

07 Jan '22

hi. we're just trying to re-structure a system and want to use dovcots submission-ability. because the github-repository have no entry for any issues at all, we're sending this feature-fequest to this ML. unfortunately there doesn't seem to be any option to drop the received-header at all or at least hide the IP of the user. because the client-ip is covered by GDPR as personal data and so it should never shown to others without a certain reason, we want to hide it, but there's no "submission_add_received_header"-option like for lmtp and it doesn't seem to be any other option to hide this information. maybe this is possible to implement in near future? thanks a lot. best regards d.

8 18

Dovecot fixing maildir message size?
by Grant Keller 07 Jan '22

07 Jan '22

We recently updated dovecot from 2.1.17 to 2.3.10. It used to be when we encountered the following error: Jan 6 15:29:20 d.imapd.sonic.net dovecot: imap(momomo): session=aBd2O/LULMu4F6ia Error: Mailbox INBOX: UID=1: read(/var/spool/mail/07/00/momomo/cur/1510707300.12345_0.a.spam,S=1234:2,) failed: Cached message size larger than expected (1234 > 704, box=INBOX, UID=1) (read reason=) Dovecot would fix the size by renaming the file. Now this doesn't appear to be the case. Was there a change in behaviour, or is there an option I need to enable now to have dovecot auto fix this?

1 0

Re: Error: fts_solr: received invalid uid
by oliver.krone＠snoog.ch 07 Jan '22

07 Jan '22

Hello, I made serveral tests, never had a problemm woth dovecot version 2.3.4 with 2.3.13 things get worse and dovecot crashes. I might have read someting in the release notes of dovecot 2.3.13. that there is a problem. Regards Oliver > On 1/2/22 3:08 PM, John Fawcett wrote: >> unless I'm missing something that doesn't look like the type of query >> dovecot launches - dovecot sends various parameters including the >> request for xml results. The thing that looks odd to me is that the >> results fields should be single values not arrays enclosed in [], ie I >> would have expected >> "uid":21, >> >> instead of >> >> "uid":[21], >> >> I'd be interested to see the equivalent xml output produced by running >> a query that dovecot sends. >> > > This Solr instance is not configured properly for dovecot.? Most of the > fields are configured as multiValued (which is why you see an array > rather than a single value), and the response is JSON.? A Solr instance > that is properly configured for dovecot would return XML, not JSON. > > You're going to want to provide a proper solrconfig.xml and > managed-schema file, restart Solr or reload the core for dovecot, and > do > a full reindex.? At the following URL, you can find the shell script > that I use to do a full reindex: > > https://apaste.info/tK1B > > At the following URL are links to the solrconfig.xml and schema that > are > appropriate for dovecot.? These instructions say to name the schema > file > "schema.xml" ... this will work, as long as Solr has read-write access > to the conf directory so it can rename the file to "managed-schema".? > If > it doesn't, then you should name the file "managed-schema" yourself. > > https://doc.dovecot.org/configuration_manual/fts/solr/ > > Thanks, > Shawn

2 2

Doveadm auth test fails
by Ken Wright 07 Jan '22

07 Jan '22

I've been having trouble logging into my email server (postfix 3.4.13, dovecot 2.3.7.2, postfixadmin 3.3.8). I decided to try the doveadm auth test, and got the following result: kwright@grace:~$ sudo doveadm auth test me(a)mydomain.com Password: passdb: me(a)mydomain.com auth failed extra fields: user=me(a)mydomain.com I logged in to PostfixAdmin and made sure I was using the correct password, but got exactly the same result afterward. Should I have restarted Dovecot after changing the password? I'm totally confused by this problem; any and all suggestions will be gratefully received! Ken

3 6

Enable push notifications for all users
by Felix Ingram 06 Jan '22

06 Jan '22

Hello all, Is there a way to enable push notifications for all users, rather than having to enable them one by one? My thinking was to set mail_attribute_dict to a static file but I can’t work out what I would need to put in it. (I’ve now realised that that will not allow me to have other attributes to be different per user, but that’s not a real issue with my use case) If a flat file isn’t the answer, then is a SQL dict my best bet? Thanks in advance, Felix

2 4

Re: Expunged message reappeared
by Claudio Corvino 05 Jan '22

05 Jan '22

Hi Alex, thanks for your answer, I think this could be related to Dovecot version in use, in our case it is the same: 2.3.4.1 (f79e8e7e4). It could be useful to know if someone can confirm this assumption so we can try an upgrade to the latest version hoping this could solve our issue. Regards On 07/12/21 08:36, Joelly Alexander wrote: > > Don't have the issue with duplicate logs but same problem with > re-appearing of deleted messages very often in a two node setup with > dsync replication. > Messages sometimes have to be deleted multiple times until they stay > in the thrash folder. > > Running dovecot version 2.3.4.1 (f79e8e7e4) > > When i 'move' messages to the Trash folder they seem to stay there but > when i delete them they usually come back. > > Alex > > On 12/3/21 5:53 PM, Claudio Corvino wrote: >> >> I forgot to mention that sometimes users receive duplicate messages >> and Dovecot log: >> >> Dec 3 10:16:12 xxx dovecot: >> lmtp(xxx@xxx)<13468><OOFDAlXgqWGcNAAAIQnY6g:12>: Warning: >> /mnt/mail-storage-lv0007/xxx/Maildir/dovecot-uidlist: Duplicate file >> entry at line 2072: 1638522075.M489729P12338.xxx,S=5854,W=5943 (uid >> 71164 -> 71166) >> >> Thanks >> >> Regars >> >> On 03/12/21 17:50, Claudio Corvino wrote: >>> >>> Hi, >>> >>> I have two IMAP/LMTP Dovecot server in replica (version 2.3.4.1), I >>> use LDAP/AD for /userdb, /replica is working, but sometimes I get >>> these errors into log: >>> >>> Dec 3 15:47:15 xxx dovecot: imap(xxx)<28251><TOSxmj7SPRYloY5/>: >>> Warning: Maildir /mnt/mail-storage-lv0007/xxx/Maildir: Expunged >>> message reappeared, giving a new UID (old uid=233140, >>> file=1638540323.M588041P27708.xxx,S=84376,W=85507:2,) >>> >>> The user delete the message and then the message reappears into mail >>> client after one second. >>> >>> Does anybody knows how can I fix it? >>> >>> Thanks in advance >>> >>> Regards >>> >>

2 3

how to delete attachment and replace some words in subject
by lujie 05 Jan '22

05 Jan '22

hi, all, I need to filter email as follow rules: 1, delete the attachments; 2, replace some word in subject with code; 3, redirect to other email with the modified subject and original text in body. sieve and exrprograms used in my script. But error in run sieve script while try to set body text , which contains invalid character "cr lf". Thanks. -- Best Regards, Jessica

2 1

Doveadm auth fails
by Ken Wright 05 Jan '22

05 Jan '22

I'm still troubleshooting a faulty email server, and got the following results when I tried doveadm: kwright@grace:/etc/dovecot/conf.d$ doveadm auth lookup me(a)mydomain.com Error: auth-master: passdb lookup(me(a)mydomain.com): Auth PASS lookup failed Error: passdb lookup failed for me(a)mydomain.com kwright@grace:/etc/dovecot/conf.d$ doveadm auth test me(a)mydomain.com Password: Error: auth-client: conn unix:/var/run/dovecot/auth-client: connect(/var/run/dovecot/auth-client) failed: Permission denied (euid=1000(kwright) egid=1000(kwright) missing +r perm: /var/run/dovecot/auth-client, dir owned by 0:0 mode=0755) kwright@grace:/etc/dovecot/conf.d$ ls -la /var/run/dovecot/auth-client srw------- 1 dovecot root 0 Jan 4 19:09 /var/run/dovecot/auth-client I see /var/run/dovecot/auth-client only has read and write permissions for the owner and nothing for anyone else. Is this part of my problem? Ken

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Re: Error: fts_solr: received invalid uid
by oliver.krone＠snoog.ch 04 Jan '22

04 Jan '22

Here is what solr sends to dovecot, the offending uid in this exmaple is '21' { "responseHeader":{ "status":0, "QTime":1, "params":{ "q":"body:Zeitserver"}}, "response":{"numFound":1,"start":0,"numFoundExact":true,"docs":[ { "uid":[21], "box":["2e60f3054059c95fbf580600eb1947e0"], "user":["oliver.krone(a)snoog.ch"], "id":"21/2e60f3054059c95fbf580600eb1947e0/oliver.krone(a)snoog.ch", "body":[" ... "], "hdr":[" ... "], "from":["..."], "subject":["..."], "to":["..."], "_version_":1720682332306800640}] }} Oliver >> I'm using dovecot 2.3.13,? solr 8.x. and roundcube 1.5.1. However when >> I do a search I get the the Error: fts_solr: received invalid uid, >> search results are ok. >> >> Thanks > Presumably one of the uid returned from solr could not be decoded (i.e. > converted to an int). The offending uid should have been printed as > part > of the message. If you need to get more info you could investigate what > is being returned by solr running the exact same query from a browser > if > you're able to retrieve it from the solr log. > > Alternatively you could set rawlog_dir in the fts_solr dovecot settings > and then look at what is being sent back from solr in the .in file that > is logged. > > https://doc.dovecot.org/settings/plugin/fts-solr-plugin/?highlight=fts%20do… > > John

3 2

Client Passdb out
by Ken Wright 03 Jan '22

03 Jan '22

I've been trying to log into Dovecot without success, and this is what I found in /var/log/mail.log: Jan 3 02:47:33 grace dovecot: auth: Debug: client passdb out: FAIL#0111#011user=me(a)mydomain.com Jan 3 02:47:33 grace dovecot: imap-login: Disconnected (auth failed, 1 attempts in 6 secs): user=<me(a)mydomain.com>, method=PLAIN, rip=192.168.1.1, lip=192.168.1.10, TLS, session=<bgBsu6jUhqzAqAEB> I know I provided the correct password, but I'm still having no joy. Ken

2 1

Re: Error: fts_solr: received invalid uid (John Fawcett)
by oliver.krone＠snoog.ch 03 Jan '22

03 Jan '22

Hi John, You are right this was not a dovecot solr query. It is really strange everything seems to work with Dovecot 2.3.4. E.g. search and rebuilding index from scratch using doveadm. As soon as I use version 2.3.13 things are getting wild: dovecot crashed when I re-scan the index using doveadm and search does not work anymore, after re-scan: Panic: file http-client-request.c: line 1240 (http_client_request_send_more): assertion failed: (req->payload_input != NULL) doveadm(krone(a)invectrix.ch): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7fc54cace4e2] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fc54cace5fe] -> /usr/lib/dovecot/libdovecot.so.0(+0xfc49b) [0x7fc54cada49b] -> /usr/lib/dovecot/libdovecot.so.0(+0xfc4d1) [0x7fc54cada4d1] -> /usr/lib/dovecot/libdovecot.so.0(+0x53aee) [0x7fc54ca31aee] -> /usr/lib/dovecot/libdovecot.so.0(+0x4aec2) [0x7fc54ca28ec2] -> /usr/lib/dovecot/libdovecot.so.0(http_client_connection_output+0xee) [0x7fc54ca7ebde] -> /usr/lib/dovecot/libdovecot.so.0(+0x122171) [0x7fc54cb00171] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7fc54caeff59] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x132) [0x7fc54caf1592] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x50) [0x7fc54caf0000] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40) [0x7fc54caf01c0] -> /usr/lib/dovecot/libdovecot.so.0(+0x9c4cd) [0x7fc54ca7a4cd] -> /usr/lib/dovecot/libdovecot.so.0(http_client_request_finish_payload+0x2c) [0x7fc54ca7a6dc] -> /usr/lib/dovecot/modules/lib20_fts_plugin.so(+0xf243) [0x7fc54c0a6243] -> /usr/lib/dovecot/modules/lib20_fts_plugin.so(fts_parser_more+0x25) [0x7fc54c0a5345] -> /usr/lib/dovecot/modules/lib20_fts_plugin.so(+0xbfcf) [0x7fc54c0a2fcf] -> /usr/lib/dovecot/modules/lib20_fts_plugin.so(fts_build_mail+0xa27) [0x7fc54c0a3a87] -> /usr/lib/dovecot/modules/lib20_fts_plugin.so(+0x11f0b) [0x7fc54c0a8f0b] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_precache+0x2e) [0x7fc54cbf14ae] -> doveadm(+0x3761f) [0x55d18bdbf61f] -> doveadm(+0x31bad) [0x55d18bdb9bad] -> doveadm(+0x32860) [0x55d18bdba860] -> doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x22d) [0x55d18bdbb4ad] -> doveadm(doveadm_cmd_run_ver2+0x4c8) [0x55d18bdcbb88] -> doveadm(doveadm_cmd_try_run_ver2+0x3a) [0x55d18bdcbbda] -> doveadm(main+0x1d0) [0x55d18bdaa450] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7fc54c69fd0a] -> doveadm(_start+0x2a) [0x55d18bdaa92a] and solr: 2022-01-03 00:13:20.829 ERROR (qtp1991278377-21) [ x:dovecot] o.a.s.s.HttpSolrCall null:[com.ctc.wstx.exc.WstxLazyException] com.ctc.wstx.exc.WstxIOException: Early EOF .... Caused by: org.eclipse.jetty.io.EofException: Early EOF at org.eclipse.jetty.server.HttpInput$3.getError(HttpInput.java:1143) at org.eclipse.jetty.server.HttpInput$3.noContent(HttpInput.java:1131) at org.eclipse.jetty.server.HttpInput.read(HttpInput.java:318) Seems like dovecot is sending an empty query? Oliver > > Hi Oliver > > unless I'm missing something that doesn't look like the type of query > dovecot launches - dovecot sends various parameters including the > request for xml results. The thing that looks odd to me is that the > results fields should be single values not arrays enclosed in [], ie I > would have expected > > "uid":21, > > instead of > > "uid":[21], > > I'd be interested to see the equivalent xml output produced by running > a > query that dovecot sends. > > John >

2 2

Can't connect to database
by Ken Wright 03 Jan '22

03 Jan '22

Dovecot has been giving me problems for the past week or so. Today the error log showed me this: Jan 2 13:33:39 grace dovecot: auth-worker(3250): Error: mysql(localhost): Connect failed to database (postfix): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - waiting for 5 seconds before retry The socket is there, showing full permissions (rwx for owner, group, and rest of the universe) so I can't understand why dovecot can't connect. Is there anyone who can help? Ken

3 3

master: service(imap): child xxxx killed with signal 11
by Lukas Matasovsky 02 Jan '22

02 Jan '22

Dear Maintainer, I have several dovecot installations, all of them stopped working with the upgrade from .16 to .17. Maybe I am missing something, or it's a bug. All I can see is a signal 11 after each login attempt. Attached you can find a sysreport plus a core dump, both from different states of configuration (I reverted the core-dump settings later on) of the same server, but the effect has been the same ever since upgrading. I have other servers that use pam (not mariadb) and local maildirs that show the same behavior. For now, I have downgraded all servers, if needed I could run some more tests. Thank you for checking & cheers, Lukas

2 3

Dovecot Docker Image Volumes
by Thomas Bellebaum 02 Jan '22

02 Jan '22

Hello there and happy new year, I have a question/request regarding the Docker Image hosted at https://hub.docker.com/r/dovecot/dovecot. The Dockerfile itself declares two volumes: - `/etc/dovecot` for configuration data - `/srv/mail` for mail storage It seems inconvenient in some cases to have the image create these volumes, especially in case of the former. Consider a minimal Dockerfile like the following: ``` FROM dovecot/dovecot:latest COPY dovecot.conf /etc/dovecot/dovecot.conf ``` This creates a new image building on top of the official one, which has statically configured configuration, and thus does not need to save its config in a volume. Yet currently, since the base image exports volumes, a config volume is created. A user might also choose to save mail in a different directory or even in a remote SQL database, rendering the second volume unnecessary. I would like to know a bit about the reasons for declaring the volumes, and suggest removing the line, should this be an option. Some impact considerations: - Removing the volumes for future image versions will not impact existing deployments building on tags other than `latest`. - As the default (example) configuration is not very useful for non-test-setups, most people have probably assigned the config volume explicitly, e.g. using docker's `-v` option. These people will also not be affected. - The description explicitly states to mount `/srv/mail/`, but some people might rely on the the automatic volume creation nonetheless. - Some obscure proprietary scripts may rely on the current behavior. In any case, if the volumes are no longer declared, the image description should mention that the mail storage location (the default being `/var/mail`) must be saved e.g. by using volumes, and probably also that the configuration is expected at `/etc/dovecot/dovecot.conf`. Stay healthy and have a nice day, -- Thomas Bellebaum <thomas(a)bellebaum.eu>

2 1

Permission denied
by Ken Wright 02 Jan '22

02 Jan '22

My server has been running just fine for over a year, until I upgraded PostfixAdmin and somehow messed things up. Now I can't log in, and my mail client (Evolution, if it matters) keeps popping up an authentication request. The server is Ubuntu 20.04, my Dovecot is version 2.3.7.2, and Evolution is 3.40.4-1. I've also tried logging in with Roundcube with no success. Any insight or suggestions will be gratefully received! Here's the most recent entry from /var/log/mail.err: Dec 28 22:05:02 grace dovecot: lmtp(me(a)mydomain.com)<910309><SOFiMl7Qy2Hl4w0AThsuZQ>: Error: lmtp- server: conn unix:pid=906625,uid=117 [6]: rcpt me(a)mydomain.com: Mailbox INBOX: open(/var/mail/vmail/me(a)mydomain.com/tmp/1640747102.M850878P910309.grac ) failed: Permission denied Any further information available upon request!

3 6

spf helo pass
by Benny Pedersen 02 Jan '22

02 Jan '22

would be nice to see added :=) talvi.dovecot.org txt "spfv1 a -all"

5 13

auth crashes when oauth2 passdb is enabled
by Sebastiano Degan 01 Jan '22

01 Jan '22

I've enabled both sql and oauth2 passdb, regardless of the method used by the client, I get the following error: Jan 1 15:38:56 mail dovecot[52828]: auth: Panic: file http-client.c: line 646 (http_client_context_close): assertion failed: (cctx->clients_list == NULL) Jan 1 15:38:56 mail dovecot[52826]: master: Error: service(auth): command startup failed, throttling for 2.000 secs Jan 1 15:38:56 mail dovecot[52828]: auth: Fatal: master: service(auth): child 52840 killed with signal 6 (core dumped) Jan 1 15:38:56 mail dovecot[52828]: imap-login: Disconnected: Auth process broken (disconnected before auth was ready, waited 0 secs): user=<>, rip=192.168.1.104, lip=192.168.1.101, TLS, session=<QW7rFYfUgcTAqAFo> If I remove the oauth2 passdb, there are no problems. This is the output of dovecot -n: # 2.3.17 (e2aa53df5b): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.17 (054dddfa) # OS: FreeBSD 13.0-RELEASE-p4 amd64 nullfs # Hostname: localhost auth_mechanisms = plain login oauthbearer xoauth2 default_internal_user = vmail first_valid_uid = 0 hostname = ***DELETED*** mail_location = maildir:/data/mailboxes/%d/%n mail_plugins = " fts fts_solr" mail_privileged_group = vmail 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 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 = } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = /usr/local/etc/dovecot/dovecot-oauth2.conf.ext driver = oauth2 mechanisms = xoauth2 oauthbearer } plugin { antispam_backend = pipe antispam_mail_notspam = learn_ham antispam_mail_sendmail = /usr/bin/rspamc antispam_mail_sendmail_args = -h;localhost:11334 antispam_mail_spam = learn_spam antispam_spam = Junk antispam_trash = Trash fts = solr fts_solr = url=http://localhost:8983/solr/dovecot sieve = ~/.dovecot.sieve sieve_before = /etc/dovecot/sieve/before.d sieve_dir = ~/sieve } postmaster_address = ***DELETED*** protocols = imap lmtp sieve pop3 service auth-worker { unix_listener auth-worker { user = vmail } } service auth { inet_listener { port = 1666 } unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } user = vmail } service imap-login { inet_listener imap { port = 0 } } service lmtp { inet_listener lmtp { port = 24 } unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0666 user = postfix } user = vmail } service pop3-login { inet_listener pop3 { port = 0 } } ssl = required ssl_cert = </usr/local/etc/letsencrypt/live/***DELETED***/fullchain.pem ssl_key = # hidden, use -P to show it userdb { args = uid=vmail gid=vmail home=/data/mailboxes/%d/%n driver = static } protocol lda { mail_plugins = " fts fts_solr sieve" } protocol imap { mail_plugins = " fts fts_solr imap_sieve" } protocol lmtp { mail_plugins = " fts fts_solr sieve" postmaster_address = ***DELETED*** }

1 0

Add arm64 support to docker image
by alpe 01 Jan '22

01 Jan '22

I think the issue is here: ADD https://github.com/krallin/tini/releases/download/v0.19.0/tini /sbin/tini # buildkit tini has arm64 (and others) version. So it should be easy to make the container work with arm.

1 0

How to set LMTP over TLS for incoming emails in exim and dovecot
by Zakaria 01 Jan '22

01 Jan '22

1 0

cumulative resource limit exceeded
by Mats Mellstrand 31 Dec '21

31 Dec '21

Hi I’m running dovecot-2.3.15 and dovecot-pigeonhole-0.5.15 on FreeBSD 13 To day i suddenly get errors in my personal logfile (.dovecot.sieve.log) sieve: info: started log at Dec 29 20:26:42. .dovecot: error: cumulative resource usage limit exceeded. Is there anything I can do about this error? /mm

3 2

modernizing dovecot.conf
by Laura Steynes 30 Dec '21

30 Dec '21

Happy Holidays, And if you like me are working throughout so more senior engineers get their holidays, my condolences hah Taking the time to bring our dovecot.conf into the 2021/22 era .since its quiet time of year, Do I read it right that where we have things like service imap { process_limit = 1024 executable = imap imap-postlogin are not needed now ? and process limit is a global option? things like pop3/imap_client_workarounds = fooy are now global options, not to be in protocol { } sections ? I am reading the example conf files and see these outside the protocol sections where they have in the past lived, this is what makes me think they are now global and not needed in sub sections. but I may be missing some linking going from file to file , we have forever updated our single config file, just fixing whatever breaks when major versions break something, easier to find options in one file, rather than trying to sift through 40 included files like I am looking at now :-)

4 7

Six failed tests on openindiana (Opensolaris derivative)
by Friedrich Kink 29 Dec '21

29 Dec '21

Hi all, I'm new to this list, so please forgive me if I violate netiquette (and let me know how to improve, because it is not at all my intent). I want to create two packages (dovecot and dovecot-2.3-pigeonhole) hosted by openindiana.org. First of all, everything compiles fine and works as expected, but (there is always a but ;-)) 6 out of 41540 tests failed. To build a clean package I'd like to understand the nature of the failed tests and even more would like to fix the tests. I tried to find some hints how to tackle down the issue but was not successful so far. dovecot version 2.3.17.1, gcc version (OpenIndiana 7.5.0-il-0) 7.5.0 configure options: --sysconfdir=/etc \ --with-gssapi=plugin \ --with-ldap=plugin \ --with-sql=plugin \ --with-lua=plugin \ --with-ssl=openssl \ --with-sodium \ --with-mysql \ --with-pgsql failed tests: array_free ........................................................... : ok $(SOURCE_DIR)/src/lib/test-backtrace.c:21: Assert failed: strstr(str_c(bt), "main") != NULL backtrace_append ..................................................... : FAILED $(SOURCE_DIR)/src/lib/test-backtrace.c:45: Assert failed: strstr(bt, "main") != NULL backtrace_get ........................................................ : FAILED base32_encode() with padding ......................................... : ok buffer_replace() ..................................................... : ok $(SOURCE_DIR)/src/lib/test-buffer-istream.c:55: Assert failed: buffer_append_full_file(result, TEST_FILENAME, SIZE_MAX, &error) == BUFFER_APPEND_READ_ERROR $(SOURCE_DIR)/src/lib/test-buffer-istream.c:56: Assert failed: error != NULL && *error != '\0' buffer_append_full_file .............................................. : FAILED buffer_append_full_istream ........................................... : ok connection idle kill ................................................. : ok $(SOURCE_DIR)/src/lib/test-connection.c:563: Assert failed: !received_quit $(SOURCE_DIR)/src/lib/test-connection.c:563: Assert failed: !received_quit connection handshake failed (version) ................................ : FAILED connection handshake failed (handshake_args) ......................... : ok file_cache_switch_fd ................................................. : ok $(SOURCE_DIR)/src/lib-test/test-common.c:245: Assert failed: suppress == TRUE Error: fstat(.test_file_cache) failed: Bad file number $(SOURCE_DIR)/src/lib-test/test-common.c:245: Assert failed: suppress == TRUE Error: mmap_anon(.test_file_cache, 4096) failed: Not enough space $(SOURCE_DIR)/src/lib-test/test-common.c:245: Assert failed: suppress == TRUE Error: mremap_anon(.test_file_cache, 8192) failed: Not enough space file_cache_errors .................................................... : FAILED file_create_locked() ................................................. : ok ostream file send istream file ....................................... : ok $(SOURCE_DIR)/src/lib/test-ostream-file.c:172: Assert failed: input2->v_offset == 10 $(SOURCE_DIR)/src/lib/test-ostream-file.c:173: Assert failed: output->offset == 14 ostream file send istream sendfile() ................................. : FAILED ostream multiplex (simple) ........................................... : ok Again, compilation works clean without any warning. If you could provide some hints how to start would be great. I know I'm kind of inch picker but want to provide best experience to possible users and not give any chance to complain back to dovecot community. kind regards, Fritz

2 1

dovecot panic
by tobisworld＠gmail.com 27 Dec '21

27 Dec '21

Hi list since today I receive dovecot panics in my mail logs, whenever I want to access on my inbox in my mailclient (evolution) Details: dovecot --version 2.3.17.1 (476cd46418) Centos 7 (latest updates) x86 architecture mailbox stored in NFS > Panic: file mail-index-transaction-finish.c: line 185 (mail_index_transaction_get_uid): assertion failed: (seq <= t->view- >map->hdr.messages_count) > Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7fb86f592142] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fb86f59224e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xf72fe) [0x7fb86f5a02fe] -> /usr/lib64/dovecot/libdovecot.so.0(+0xf73a1) [0x7fb86f5a03a1] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7fb86f4eee38] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xf438d) [0x7fb86f95b38d] - > /usr/lib64/dovecot/libdovecot-storage.so.0(+0xf43da) [0x7fb86f95b3da] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_index_transaction_finish+0x177) [0x7fb86f95ba87] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xf9ad6) [0x7fb86f960ad6] - > /usr/lib64/dovecot/libdovecot- storage.so.0(mail_index_transaction_commit_full+0x9d) [0x7fb86f960fad] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_index_transaction_commit+0x1c) [0x7fb86f96106c] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_cache_set_seq_corrupted_reason+0x61) [0x7fb86f94a921] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_set_mail_cache_corrupted+0xed) [0x7fb86f8b9bbd] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x7a3e9) [0x7fb86f8e13e9] - > /usr/lib64/dovecot/libdovecot-storage.so.0(+0x7a6b0) [0x7fb86f8e16b0] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_get_physical_size+0x38) [0x7fb86f8a6ba8] -> /usr/libexec/dovecot//lib20_mail_log_plugin.so(+0x2465) [0x7fb86e49b465] -> /usr/libexec/dovecot//lib15_notify_plugin.so(notify_contexts_mail_copy+ 0x5c) [0x7fb86e69f3ec] -> /usr/libexec/dovecot//lib15_notify_plugin.so(+0x25d4) [0x7fb86e6a05d4] -> /usr/libexec/dovecot//lib10_quota_plugin.so(+0x102ae) [0x7fb86eab72ae] -> /usr/libexec/dovecot//lib01_acl_plugin.so(+0xef3e) [0x7fb86eccef3e] -> /usr/lib64/dovecot/libdovecot- storage.so.0(+0x50c4c) [0x7fb86f8b7c4c] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_move+0x58) [0x7fb86f8b7ec8] -> dovecot/imap(+0x1175b) [0x55a2b1a5375b] -> dovecot/imap(command_exec+0x64) [0x55a2b1a61f04] -> dovecot/imap(+0x1dde2) [0x55a2b1a5fde2] -> dovecot/imap(+0x1de71) [0x55a2b1a5fe71] -> dovecot/imap(+0x1e039) [0x55a2b1a60039] -> dovecot/imap(client_handle_input+0x205) [0x55a2b1a602f5] -> dovecot/imap(client_input+0x79) [0x55a2b1a608d9] I attached output from dovecot-sysreport here to this report Best regards tobi

1 1

Re: Dovecot does not start on MacOS 12.01
by Steven Smith 19 Dec '21

19 Dec '21

Re: https://www.mail-archive.com/dovecot@dovecot.org/msg84784.html <https://www.mail-archive.com/dovecot@dovecot.org/msg84784.html> I just upgraded to macOS 12.1, ran into this issue, and discovered this thread from the error message. Is there a viable workaround or patch yet? I tried the workaround in this thread, and still see these issues. Set default_vsz_limit = 0 in ./conf.d/10-master.conf. Observe that: dovecot now launches without the setrlimit(RLIMIT_DATA, 268435456) error at the command line However, the mail-err.log is still filled with these errors (below), perhaps for the child processes. Steve > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4629 returned error 89 (Fatal failure) > Dec 19 11:22:06 master: Error: service(imap-login): command startup failed, throttling for 2.000 secs > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4630 returned error 89 (Fatal failure) > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4628 returned error 89 (Fatal failure) > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4627 returned error 89 (Fatal failure) > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4619 returned error 89 (Fatal failure) > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4631 returned error 89 (Fatal failure) > Dec 19 11:22:09 imap-login: Error: Dec 19 11:22:09 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:09 imap-login: Fatal: master: service(imap-login): child 4638 returned error 89 (Fatal failure) > Dec 19 11:22:09 master: Error: service(imap-login): command startup failed, throttling for 4.000 secs > On Mon, 1 Nov 2021 14:55:25 +0200, Aki Tuomi said: > > I think this is happening because MacOS no longer supports RLIMIT_DATA. We'll > try to look into this. default_vsz_limit = 0 seems good enough workaround. > Aki

1 2

Undefined symbol using fts-flatcurve with repo.dovecot.org packages
by Mike Acar 18 Dec '21

18 Dec '21

Hi, I'm trying to use dovecot-fts-flatcurve with dovecot 2:2.3.15-1+debian10 from repo.dovecot.org, but it looks like the package doesn't include ICU, which fts-flatcurve requires. After compilation and installation, I get an error from doveadm: doveadm fts-flatcurve stats -u user INBOX Fatal: Couldn't load required plugin /usr/lib/dovecot/modules/lib21_fts_flatcurve_plugin.so: dlopen() failed: /usr/lib/dovecot/modules/lib21_fts_flatcurve_plugin.so: undefined symbol: _ZTIN6icu_638ByteSinkE Unmangled, I think that's this symbol: U typeinfo for icu_63::ByteSink I checked the rules file from dovecot_2.3.15-1%2Bdebian10.debian.tar.xz and it appears that configure doesn't include --with-icu. Is there a plan to include this in a future release? -- | Mike Acar | | mike at waspfactory dot org |

1 0

Re: Re: invalid vsize-hdr
by Станислав Дырив 17 Dec '21

17 Dec '21

it helps for me (dovecot 2.2.36 @ centos7): #delete index files: find /path/to/user/maildir/ -type f -name dovecot.index* -delete find /path/to/user/maildir/ -type f -name dovecot-uidlist -delete #then re-create index by command: doveadm force-resync -u "user(a)domain.com" '*'

1 0

Can dovecot be leveraged to exploit Solr/Log4shell?
by Joseph Tam 15 Dec '21

15 Dec '21

I'm surprised I haven't seen this mentioned yet. An internet red alert went out Friday on a new zero-day exploit. It is an input validation problem where Java's Log4j module can be instructed via a specially crafted string to fetch and execute code from a remote LDAP server. It has been designated the Log4shell exploit (CVE-2021-44228). Although I don't use it, I immediately thought of Solr, which provides some dovecot installations with search indexing. Can dovecot be made to pass on arbitrary loggable strings to affected versions of Solr (7.4.0-7.7.3, 8.0.0-8.11.0)? Those running Solr to implement Dovecot FTS should look at https://solr.apache.org/security.html#apache-solr-affected-by-apache-log4j-… Joseph Tam <jtam.home(a)gmail.com>

6 8

quota warnings not sent out anymore
by mj 15 Dec '21

15 Dec '21

Hi, We suddenly realised that our maildir quota warnings are no longer sent out. We don't understand why not. This is dovecot 2.3.4.1 on debian 10.11. We use a script to send out the notification, adapted from the dovecot wiki here: (https://doc.dovecot.org/configuration_manual/quota/) Our quota notification script is: > #!/bin/sh > PERCENT=$1 > USER=$2 > cat << EOF | /usr/lib/dovecot/dovecot-lda -d $USER -o "plugin/quota=maildir::noenforcing" > From: noreply(a)domain.com > Subject: quota warning > > Your mailbox is now $PERCENT% full. > > Please delete or archive items to decrease your mailbox size. Our complete doveconf -n output is at the end of this email. When calling the script manually as user root, it works perfectly. But as user vmail or dovecot, no notifications are sent at all. I guess this is relevant: > root@dovecot:/etc/dovecot# ls -l /var/run/dovecot/ > total 8 > srw------- 1 root root 0 Dec 6 00:00 anvil > srw------- 1 root root 0 Dec 6 00:00 anvil-auth-penalty > srw------- 1 dovecot root 0 Dec 6 11:34 auth-client > srw------- 1 dovecot root 0 Dec 6 11:34 auth-login > srw------- 1 root root 0 Dec 6 11:34 auth-master > -rw------- 1 root root 32 Jul 19 17:39 auth-token-secret.dat > srw-rw-rw- 1 vmail vmail 0 Dec 6 11:34 auth-userdb > srw------- 1 dovecot root 0 Dec 6 11:34 auth-worker > srw------- 1 root root 0 Dec 6 11:34 config > srw-rw---- 1 root dovecot 0 Dec 6 11:34 dict > srw-rw---- 1 root dovecot 0 Dec 6 11:34 dict-async > srw------- 1 root root 0 Dec 6 11:34 director-admin > srw-rw-rw- 1 root root 0 Dec 6 11:34 dns-client > srw------- 1 root root 0 Dec 6 11:34 doveadm-server > lrwxrwxrwx 1 root root 25 Dec 6 00:00 dovecot.conf -> /etc/dovecot/dovecot.conf > drwxr-xr-x 2 root root 40 Jul 19 17:39 empty > srw-rw---- 1 root dovecot 0 Dec 6 11:34 imap-hibernate > srw------- 1 root root 0 Dec 6 11:34 imap-master > srw-rw-rw- 1 root root 0 Dec 6 11:34 imap-urlauth > srw------- 1 dovecot root 0 Dec 6 11:34 imap-urlauth-worker > srw-rw-rw- 1 root root 0 Dec 6 11:34 indexer > srw------- 1 dovecot root 0 Dec 6 11:34 indexer-worker > srw------- 1 dovecot root 0 Dec 6 11:34 ipc > srw-rw-rw- 1 root root 0 Dec 6 11:34 lmtp > srw------- 1 root root 0 Dec 6 11:34 log-errors > drwxr-x--- 2 root nogroup 120 Dec 6 11:34 login > srw------- 1 root root 0 Dec 6 11:34 master > -rw------- 1 root root 6 Dec 6 00:00 master.pid > srw------- 1 root root 0 Dec 6 11:34 old-stats > prw------- 1 root root 0 Dec 6 11:34 old-stats-mail > prw------- 1 root root 0 Dec 6 11:34 old-stats-user > srw------- 1 vmail root 0 Dec 6 11:34 quota-warning > srw------- 1 root root 0 Dec 6 11:34 replication-notify > prw------- 1 root root 0 Dec 6 11:34 replication-notify-fifo > srw------- 1 dovecot root 0 Dec 6 11:34 replicator > srw-rw---- 1 vmail vmail 0 Dec 6 11:34 stats-reader > srw-rw---- 1 vmail vmail 0 Dec 6 11:34 stats-writer > drwxr-x--- 2 root nogroup 80 Dec 6 11:34 token-login Can anyone help, and explain what is going on here? Thank you very much in advance for a reply! MJ The doveconf -n output: > root@imap:/etc/dovecot# doveconf -n > # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf > # Pigeonhole version 0.5.4 () > # OS: Linux 4.19.0-17-amd64 x86_64 Debian 10.11 xfs > # Hostname: mail.company.com > auth_debug = yes > auth_failure_delay = 10 secs > auth_master_user_separator = * > auth_mechanisms = plain login > auth_username_format = %Ln > auth_verbose = yes > auth_verbose_passwords = sha1 > default_vsz_limit = 512 M > deliver_log_format = %f | %s | msgid=%m: %$ > lda_mailbox_autocreate = yes > lda_mailbox_autosubscribe = yes > login_greeting = Dovecot ready. > login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c lport=%a > mail_gid = vmail > mail_location = maildir:/var/vmail/%Ln/Maildir:LAYOUT=fs:DIRNAME=mAildir > mail_plugins = acl lazy_expunge zlib quota mail_log notify > mail_shared_explicit_inbox = yes > mail_uid = vmail > 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 > namespace { > list = children > location = maildir:/var/vmail/%%u/Maildir:LAYOUT=fs:DIRNAME=mAildir:INDEX=/var/vmail/%u/shared/%%u > prefix = shared/%%n/ > separator = / > subscriptions = no > type = shared > } > namespace inbox { > inbox = yes > location = > mailbox "Deleted items" { > special_use = \Trash > } > mailbox Drafts { > special_use = \Drafts > } > mailbox Junk { > special_use = \Junk > } > mailbox Sent { > special_use = \Sent > } > mailbox "Sent items" { > special_use = \Sent > } > mailbox Trash { > special_use = \Trash > } > mailbox inbox { > auto = subscribe > } > prefix = > separator = / > type = private > } > passdb { > args = /etc/dovecot/deny.imap > deny = yes > driver = passwd-file > } > passdb { > args = /etc/dovecot/master-users > driver = passwd-file > master = yes > } > passdb { > args = /etc/dovecot/dovecot-ldap.conf.ext > driver = ldap > result_failure = return-fail > } > plugin { > acl = vfile > acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db > mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename append > mail_log_fields = uid box msgid from subject > quota = maildir > quota_rule = ?:storage=5G > quota_rule2 = Trash:storage=+100M > quota_warning = storage=97%% quota-warning 97 %u > quota_warning2 = storage=95%% quota-warning 95 %u > quota_warning3 = storage=90%% quota-warning 90 %u > quota_warning4 = storage=85%% quota-warning 85 %u > quota_warning5 = storage=80%% quota-warning 80 %u > quota_warning6 = -storage=100%% quota-warning below %u > sieve = ~/.dovecot.sieve > sieve_default = /var/lib/dovecot/default.sieve > sieve_dir = ~/sieve > } > protocols = imap lmtp sieve > service auth { > unix_listener /var/spool/postfix/private/auth { > mode = 0666 > } > unix_listener auth-userdb { > group = vmail > mode = 0666 > user = vmail > } > } > service imap-login { > process_limit = 500 > process_min_avail = 2 > } > service quota-warning { > executable = script /usr/local/bin/quota-warning.sh > unix_listener quota-warning { > user = vmail > } > user = dovecot > } > service stats { > unix_listener stats-reader { > group = vmail > mode = 0660 > user = vmail > } > unix_listener stats-writer { > group = vmail > mode = 0660 > user = vmail > } > } > shutdown_clients = no > ssl = required > ssl_cert = </etc/ssl/letsencrypt/fullchain.pem > ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 > ssl_dh = # hidden, use -P to show it > ssl_key = # hidden, use -P to show it > ssl_min_protocol = TLSv1.2 > userdb { > args = uid=vmail gid=vmail home=/var/vmail/%n allow_all_users=yes > driver = static > } > userdb { > args = /etc/dovecot/dovecot-ldap.conf.ext > driver = ldap > } > verbose_proctitle = yes > protocol lda { > mail_plugins = acl lazy_expunge zlib quota mail_log notify sieve quota > } > protocol imap { > imap_max_line_length = 2 M > mail_max_userip_connections = 40 > mail_plugins = acl lazy_expunge zlib quota mail_log notify imap_quota imap_acl > }

2 5

dovecot-2.3.17: "Panic: file ioloop.c: line 865"
by Piper Andreas 14 Dec '21

14 Dec '21

Hello, since the upgrade from dovecot-2.3.16 to 2.3.17 I get 'Panic'-errors in the system-log of my replicator hosts. See below for log messages, doveconf-output and gdb-backtrace. Storage filesystem is ZFS. The error seems to be correlated with exactly one user-mailbox, this user is repeatedly noted as 'failed' in replication status, although replication of this mailbox seems to work, as the mailbox status shows always the identical size on both replicators. The error can be produced by forcing replication of this individual mailbox. Is there anything I can do to repair this mailbox? Thanks for any hints, Andreas Example log-messages: Nov 11 07:17:50 vhrz311 dovecot: doveadm(119455): Error: write(<local>) failed: Timed out after 60 seconds Nov 11 07:17:50 vhrz311 dovecot: doveadm(119455): Panic: file ioloop.c: line 865 (io_loop_destroy): assertion failed: (ioloop == cur rent_ioloop) Nov 11 07:17:50 vhrz311 dovecot: doveadm(119455): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7 f4e59419182] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f4e5941929e] -> /usr/lib/dovecot/libdovecot.so.0(+0xf8a5e) [0x7f4e59427a5e] -> /usr/lib/dovecot/libdovecot.so.0(+0xf8b01) [0x7f4e59427b01] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f 4e593744a7] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_destroy+0x2dc) [0x7f4e5944121c] -> dovecot/doveadm-server(+0x46fb6) [0x563d0 150ffb6] -> dovecot/doveadm-server(doveadm_print+0x27) [0x563d01508fb7] -> dovecot/doveadm-server(+0x2b427) [0x563d014f4427] -> dove cot/doveadm-server(+0x2da44) [0x563d014f6a44] -> dovecot/doveadm-server(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x2cf) [0x563d014f7c6f] -> dovecot/doveadm-server(doveadm_cmd_run_ver2+0x43b) [0x563d01508c1b] -> dovecot/doveadm-server(+0x44612) [0x563d0150d612] -> /usr /lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f4e594406d9] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal +0x134) [0x7f4e59442034] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x50) [0x7f4e594407e0] -> /usr/lib/dovecot/libdovec ot.so.0(io_loop_run+0x38) [0x7f4e59440a18] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f4e593a6a23] -> dovecot/ doveadm-server(main+0x102) [0x563d014e6922] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f4e58bc1bf7] -> dovecot/d oveadm-server(_start+0x2a) [0x563d014e69aa] Nov 11 07:17:50 vhrz311 dovecot: doveadm(119455): Fatal: master: service(doveadm): child 119455 killed with signal 6 (core dumped) 'doveconf -n': # 2.3.17 (e2aa53df5b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.17 (054dddfa) # OS: Linux 4.15.0-162-generic x86_64 Ubuntu 18.04.6 LTS # Hostname: vhrz311.HRZ.Uni-Marburg.DE auth_cache_negative_ttl = 0 auth_cache_size = 10 M auth_master_user_separator = * auth_worker_max_count = 1024 base_dir = /var/run/dovecot/ default_client_limit = 10000 default_vsz_limit = 6 G doveadm_password = # hidden, use -P to show it doveadm_port = 12345 first_valid_gid = 10000 first_valid_uid = 10000 imap_max_line_length = 640 k last_valid_gid = 10000 last_valid_uid = 10000 mail_attribute_dict = file:%h/mdbox/dovecot-attributes mail_gid = 10000 mail_location = mdbox:%h/mdbox mail_plugins = " mail_log notify zlib notify replication" mail_privileged_group = mail mail_uid = 10000 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 namespace inbox { hidden = no inbox = yes list = yes location = prefix = separator = / subscriptions = yes type = private } passdb { args = /etc/dovecot.deny deny = yes driver = passwd-file } passdb { args = /etc/dovecot/private/passwd.masterusers driver = passwd-file master = yes } passdb { args = /etc/dovecot/dovecot-ldap.hrz.conf.ext driver = ldap name = passdb_ldap_hrz } passdb { args = /etc/dovecot/dovecot-ldap.staff.conf.ext driver = ldap name = passdb_ldap_staff } passdb { args = /etc/dovecot/dovecot-ldap.students.conf.ext driver = ldap name = passdb_ldap_students } plugin { mail_replica = tcp:172.25.1.95 sieve = file:~/sieve;active=~/.dovecot.sieve sieve_default = /var/lib/dovecot/default.sieve sieve_max_actions = 55 sieve_max_redirects = 50 } pop3_uidl_format = %08Xv%08Xu postmaster_address = postmaster(a)hrz.uni-marburg.de protocols = imap pop3 lmtp sieve replication_dsync_parameters = -d -n INBOX -l 30 -U replication_max_conns = 20 service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service auth-worker { user = $default_internal_user } service auth { client_limit = 10000 } service config { process_min_avail = 8 } service doveadm { inet_listener { port = 12345 } vsz_limit = 6 G } service imap-login { process_min_avail = 64 service_count = 0 } service imap { process_limit = 8192 } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 8 service_count = 0 } service pop3-login { process_min_avail = 8 service_count = 0 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } } service submission-login { service_count = 0 } ssl = required ssl_ca = </etc/ssl/certs/umr-chain.pem ssl_cert = </etc/ssl/certs/vhrz311.hrz.uni-marburg.de.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_require_crl = no userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap name = userdb_ldap } protocol imap { imap_metadata = yes mail_max_userip_connections = 25 mail_plugins = " mail_log notify zlib notify replication imap_zlib" } protocol lmtp { mail_plugins = " mail_log notify zlib notify replication sieve" } gdb: gdb /usr/lib/dovecot/doveadm-server /var/vmail/system-cores/core GNU gdb (Ubuntu 8.1.1-0ubuntu1) 8.1.1 Copyright (C) 2018 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-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/lib/dovecot/doveadm-server...(no debugging symbols found)...done. [New LWP 119455] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dovecot/doveadm-server'. Program terminated with signal SIGABRT, Aborted. #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007f4e58be0921 in __GI_abort () at abort.c:79 #2 0x00007f4e59427a11 in ?? () from /usr/lib/dovecot/libdovecot.so.0 #3 0x00007f4e59427b01 in ?? () from /usr/lib/dovecot/libdovecot.so.0 #4 0x00007f4e593744a7 in i_panic () from /usr/lib/dovecot/libdovecot.so.0 #5 0x00007f4e5944121c in io_loop_destroy () from /usr/lib/dovecot/libdovecot.so.0 #6 0x0000563d0150ffb6 in ?? () #7 0x0000563d01508fb7 in doveadm_print () #8 0x0000563d014f4427 in ?? () #9 0x0000563d014f6a44 in ?? () #10 0x0000563d014f7c6f in doveadm_cmd_ver2_to_mail_cmd_wrapper () #11 0x0000563d01508c1b in doveadm_cmd_run_ver2 () #12 0x0000563d0150d612 in ?? () #13 0x00007f4e594406d9 in io_loop_call_io () from /usr/lib/dovecot/libdovecot.so.0 #14 0x00007f4e59442034 in io_loop_handler_run_internal () from /usr/lib/dovecot/libdovecot.so.0 #15 0x00007f4e594407e0 in io_loop_handler_run () from /usr/lib/dovecot/libdovecot.so.0 #16 0x00007f4e59440a18 in io_loop_run () from /usr/lib/dovecot/libdovecot.so.0 #17 0x00007f4e593a6a23 in master_service_run () from /usr/lib/dovecot/libdovecot.so.0 #18 0x0000563d014e6922 in main ()

4 5

Dovecot, Solr (FTS) and iOS body search
by Ben Howard 13 Dec '21

13 Dec '21

I had a question about full text search with Dovecot, Solr with iOS as a client (the built in default mail client). Does anyone happen to know if it's possible to get the iOS mail client to search bodies of email via IMAP with Dovecot and Solr on the server? I've looked at the IMAP queries being sent to Solr and regardless of iOS settings only the subject or to/cc/from seem to get queried. i.e.: test search query: Foobar Request [dovecot] webapp=/solr path=/select params={q={!lucene+q.op%3DAND}subject:Foobar&fl=uid,score&sort=uid+asc (trimmed for space) test search query with 'message' selected as search via the GUI in iOS mail app: Foobar 2021-12-12 22:16:43.840 INFO (qtp1309129055-21) [ x:dovecot] o.a.s.c.S.Request [dovecot] webapp=/solr path=/select params={q={!lucene+q.op%3DAND}to:Foobar+OR+cc:Foobar+OR+from:Foobar+OR+subject:Foobar&fl=uid,score&sort=uid+asc (trimmed for space) I also put Wireshark between an iOS device and the mail server to see the IMAP commands being issued client side and it matches with what Dovecot is seeing - i.e. only to/cc/from/subject no body queries. dovecot version: 2.3.17.1 (476cd46418), solr 8.11.0 and fts_enforced = yes Is it just not possible for the iOS mail client to search for keywords within the body of emails via IMAP/Dovecot/Solr? Any pointers, or just knowing I should give up, would be most gratefully received. Thanks

1 0

Re: 2.3.17: Panic on LMTP deliveries
by Volker ********* 13 Dec '21

13 Dec '21

It WORKS!!! :-) Great, thanks! Best regards Volker Am 12.12.2021 um 13:00 schrieb Volker: > That´s a good message, thank you very much! > > I will try the patch! > > Kind regards > Volker > > Am 12.12.2021 um 12:48 schrieb Aki Tuomi: >>>> Hello! >>>> >>>> While searching for an explanation for the fact that after updating to >>>> Dovecot 2.3.17_1 (FreeBSD 12.2) I suddenly stopped receiving emails and >>>> following error messages appeared in the dovecot.log, >>>> >>>> /Error: lmtp-server: conn unix:uid=125 [1]: rcptuser(a)domain.tld: >>>> duplicate db: Useruser(a)domain.tld doesn't have home dir set, disabling >>>> duplicate database// >>>> // >>>> //Dec 12 08:42:54 lmtp(user(a)domain.tld)<80363><z7AxDf6ntWHrOQEAp6O1gg>: >>>> Panic: file imem.c: line 65 (i_strconcat): assertion failed: (str1 != NULL) >>>> >>>> /I found your answer here >>>> <https://www.mail-archive.com/dovecot@dovecot.org/msg84893.html>: >>>> >>>> /Problem confirmed. This is a 2.3.17 regression. Tracking internally as >>>> DOP-2659./ >>>> / >>>> Regards, >>>> Stephan./ >>>> >>>> >>>> But what exactly does your answer mean for those affected? >>>> >>>> That all users who use Dovecot and use the whole thing without >>>> "mail_home" and only with "mail_location", must wait until a BugFix >>>> appears to be able to receive emails again? >>>> >>>> >>>> Thanks in advance and have a nice advent sunday >>>> Volker >>>> >>>> P. S.: >>>> In my case dovecot -n shows >>>> >>>> /mail_location = maildir:/var/mail/vhosts/%d/%n// >>>> //mail_home = /var/mail/vhosts/%d/%n >>>> >>>> /so mail_home is even set!/ >>>> / >>>> >>> You can roll back to 2.3.16 as well? >>> >>> Aki >> After looking bit more, this issue is fixed and will be in 2.3.18. If you want, you can try applying >> >> https://github.com/dovecot/core/compare/98f709de%5E..d36d2c59.patch >> >> which should fix this issue. >> >> Aki >

1 0

Send to mailbox + alias??
by postfix＠aecperformance.com 12 Dec '21

12 Dec '21

Is there any way to set postfix/dovecot to: 1. Deliver email to the mailbox -> ie. bob(a)test.com <mailto:bob@test.com> AND 2. Set the email as an alias and send it to the forwarded address -> bobs.boss(a)bosses.com <mailto:bobs.boss@bosses.com> This would be given that both email accounts are set up as virtual_users in MySql. Right now if I set up an alias and mailbox for the same email the alias overrides the mailbox and the email is delivered to the forwarded account and not to the email's mailbox. If the mailbox exists I need the email sent to both the mailbox and the forwarded mailbox. Can I do that? If so, how?

2 1

submission Connection failed: Failed to connect to remote server
by fugee ohu 12 Dec '21

12 Dec '21

I'm getting this error when I try to send mail mail dovecot: submission(username-here)<113012><tY+KjubSZJJHvuNn>: Debug: smtp-client: conn 127.0.0.1:25 [1]: Connection failed: Failed to connect to remote server

2 1

Re[7]: Replicator bug report
by Daniel Miller 12 Dec '21

12 Dec '21

On 12/7/2021 12:29:49 PM, "Daniel Miller" <dmiller(a)amfes.com> wrote: >>service replicator { >> vsz_limit = 2G >>} >> >>Aki >> >Tried that - got another one. I just tried setting service replicator { vcsz_limit = 5G } and I still get: Dec 7 15:08:25 bubba dovecot: replicator: Panic: data stack: Out of memory when allocating 4294967336 bytes -- Daniel

3 4

2.3.17: Panic on LMTP deliveries
by Volker 12 Dec '21

12 Dec '21

Hello! While searching for an explanation for the fact that after updating to Dovecot 2.3.17_1 (FreeBSD 12.2) I suddenly stopped receiving emails and following error messages appeared in the dovecot.log, /Error: lmtp-server: conn unix:uid=125 [1]: rcpt user(a)domain.tld: duplicate db: User user(a)domain.tld doesn't have home dir set, disabling duplicate database// // //Dec 12 08:42:54 lmtp(user(a)domain.tld)<80363><z7AxDf6ntWHrOQEAp6O1gg>: Panic: file imem.c: line 65 (i_strconcat): assertion failed: (str1 != NULL) /I found your answer here <https://www.mail-archive.com/dovecot@dovecot.org/msg84893.html>: /Problem confirmed. This is a 2.3.17 regression. Tracking internally as DOP-2659./ / Regards, Stephan./ But what exactly does your answer mean for those affected? That all users who use Dovecot and use the whole thing without "mail_home" and only with "mail_location", must wait until a BugFix appears to be able to receive emails again? Thanks in advance and have a nice advent sunday Volker P. S.: In my case dovecot -n shows /mail_location = maildir:/var/mail/vhosts/%d/%n// //mail_home = /var/mail/vhosts/%d/%n /so mail_home is even set!/ /

2 2

dovecot error
by Rajesh M 11 Dec '21

11 Dec '21

hello all we were seeing an error as such in dovecot.log for the first time we use sogo for active sync dovecot: master: Warning: service(dict): process_limit (100) reached, client connections are being dropped once we restarted sogo service this issue got resolved could someone please guide us on how to resolve the above please find below dovecot config file ####################################### # More details about Dovecot settings: # - http://wiki2.dovecot.org/ # - http://wiki2.dovecot.org/Variables # Listen addresses. # - '*' means all available IPv4 addresses. # - '[::]' means all available IPv6 addresses. # Listen on all available addresses by default listen = * #base_dir = /var/run/dovecot mail_plugins = quota mailbox_alias acl mail_log notify stats # Enabled mail protocols. protocols = pop3 imap sieve lmtp default_client_limit = 2400 # User/group who owns the message files: mail_uid = 2000 mail_gid = 2000 # Assign uid to virtual users. first_valid_uid = 2000 last_valid_uid = 2000 # Logging. Reference: http://wiki2.dovecot.org/Logging # # Use syslog syslog_facility = local5 # Log file path if we use internal log system #log_path = /var/log/dovecot/dovecot.log # Debug #mail_debug = yes #auth_verbose = yes #auth_debug = yes #auth_debug_passwords = yes # Possible values: no, plain, sha1. #auth_verbose_passwords = no # SSL: Global settings. # Refer to wiki site for per protocol, ip, server name SSL settings: # http://wiki2.dovecot.org/SSL/DovecotConfiguration ssl_protocols = !SSLv3 ssl = required verbose_ssl = no #ssl_ca = </path/to/ca ssl_cert = </etc/ssl/certificate_key.crt ssl_key = </etc/ssl/certificate_key.crt # Fix 'The Logjam Attack' ssl_cipher_list = ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5 ssl_prefer_server_ciphers = yes # With disable_plaintext_auth=yes AND ssl=required, STARTTLS is mandatory. # Set disable_plaintext_auth=no AND ssl=yes to allow plain password transmitted # insecurely. disable_plaintext_auth = no ssl=yes # Allow plain text password per IP address/net #remote 192.168.0.0/24 { # disable_plaintext_auth = no #} # Mail location and mailbox format. mail_location = maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/ # Authentication related settings. # Append this domain name if client gives empty realm. #auth_default_realm = aaaonlinux.net # Authentication mechanisms. auth_mechanisms = PLAIN LOGIN # Limits the number of users that can be logging in at the same time. # Default is 100. This can be overridden by `process_limit =` in # `service [protocol]` block. # e.g. # protocol imap-login { # ... # process_limit = 500 # } #default_process_limit = 100 # Mail delivery log format deliver_log_format = from=%{from}, envelope_sender=%{from_envelope}, subject=%{subject}, msgid=%m, size=%{size}, %$ service auth { unix_listener /var/spool/postfix/private/dovecot-auth { user = postfix group = postfix mode = 0666 } unix_listener auth-master { user = vmail group = vmail mode = 0666 } unix_listener auth-userdb { user = vmail group = vmail mode = 0660 } } # LMTP server (Local Mail Transfer Protocol). # Reference: http://wiki2.dovecot.org/LMTP service lmtp { user = vmail # For higher volume sites, it may be desirable to increase the number of # active listener processes. A range of 5 to 20 is probably good for most # sites. process_min_avail = 5 # Logging. # Require 'log_path =' in 'protocol lmtp {}' block. executable = lmtp -L # Listening on socket file and TCP unix_listener /var/spool/postfix/private/dovecot-lmtp { user = postfix group = postfix mode = 0600 } inet_listener lmtp { # Listen on localhost (ipv4) address = 127.0.0.1 port = 24 } } # Virtual mail accounts. userdb { args = /etc/dovecot/dovecot-mysql.conf driver = sql } passdb { args = /etc/dovecot/dovecot-mysql.conf driver = sql } # Master user. # Master users are able to log in as other users. It's also possible to # directly log in as any user using a master password, although this isn't # recommended. # Reference: http://wiki2.dovecot.org/Authentication/MasterUsers auth_master_user_separator = * passdb { driver = passwd-file args = /etc/dovecot/dovecot-master-users master = yes } plugin { # Quota configuration. # Reference: http://wiki2.dovecot.org/Quota/Configuration quota = dict:user::proxy::quotadict # Set default quota rule if no quota returned from SQL/LDAP query. #quota_rule = *:storage=1G #quota_rule2 = *:messages=0 #quota_rule3 = Trash:storage=1G #quota_rule4 = Junk:ignore # Quota warning. # # If user suddenly receives a huge mail and the quota jumps from # 85% to 95%, only the 95% script is executed. # # Only the command for the first exceeded limit is executed, so configure # the highest limit first. quota_warning = storage=100%% quota-warning 100 %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=90%% quota-warning 90 %u quota_warning4 = storage=85%% quota-warning 85 %u # allow user to become max 10% (or 50 MB) over quota quota_grace = 10%% #quota_grace = 50 M # Custom Quota Exceeded Message. # You can specify the message directly or read the message from a file. #quota_exceeded_message = Quota exceeded, please try again later. #quota_exceeded_message = </path/to/quota_exceeded_message.txt # Plugin: expire. #expire = Trash 7 Trash/* 7 Junk 30 #expire_dict = proxy::expire # ACL and share folder acl = vfile acl_shared_dict = proxy::acl # By default Dovecot doesn't allow using the IMAP "anyone" or # "authenticated" identifier, because it would be an easy way to spam # other users in the system. If you wish to allow it, #acl_anyone = allow # Pigeonhole managesieve service. # Reference: http://wiki2.dovecot.org/Pigeonhole/Sieve/Configuration # Per-user sieve settings. sieve_dir = ~/sieve sieve = ~/sieve/dovecot.sieve # Global sieve settings. sieve_global_dir = /var/vmail/sieve # Note: if user has personal sieve script, global sieve rules defined in # sieve_default will be ignored. Please use sieve_before or # sieve_after instead. #sieve_default = sieve_before = /var/vmail/sieve/dovecot.sieve #sieve_after = # The maximum number of redirect actions that can be performed during a # single script execution. # The meaning of 0 differs based on your version. For pigeonhole-0.3.0 and # beyond this means that redirect is prohibited. For older versions, # however, this means that the number of redirects is unlimited. sieve_max_redirects = 30 # Use recipient as vacation message sender instead of null sender (<>). sieve_vacation_send_from_recipient = yes # Reference: http://wiki2.dovecot.org/Plugins/MailboxAlias mailbox_alias_old = Sent mailbox_alias_new = Sent Messages mailbox_alias_old2 = Sent mailbox_alias_new2 = Sent Items # Events to log. `autoexpunge` is included in `expunge` # Defined in https://github.com/dovecot/core/blob/master/src/plugins/mail-log/mail-log-p… mail_log_events = delete undelete expunge mailbox_delete mailbox_rename mail_log_fields = uid box msgid size from subject # stats # # how often to session statistics (must be set) stats_refresh = 30 secs # track per-IMAP command statistics (optional) stats_track_cmds = yes } service stats { fifo_listener stats-mail { user = vmail mode = 0644 } inet_listener { address = 127.0.0.1 port = 24242 } } service quota-warning { executable = script /usr/local/bin/dovecot-quota-warning.sh unix_listener quota-warning { user = vmail group = vmail mode = 0660 } } service dict { unix_listener dict { mode = 0660 user = vmail group = vmail } } dict { #expire = db:/var/lib/dovecot/expire/expire.db quotadict = mysql:/etc/dovecot/dovecot-used-quota.conf acl = mysql:/etc/dovecot/dovecot-share-folder.conf } protocol lda { # Reference: http://wiki2.dovecot.org/LDA mail_plugins = $mail_plugins sieve lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes # Log file path if we use internal log system #log_path = /var/log/dovecot/sieve.log } protocol lmtp { # Log file path if we use internal log system #log_path = /var/log/dovecot/lmtp.log # Plugins mail_plugins = quota sieve # Address extension delivery lmtp_save_to_detail_mailbox = yes recipient_delimiter = + } protocol imap { mail_plugins = $mail_plugins imap_quota imap_acl imap_stats imap_client_workarounds = tb-extra-mailbox-sep #process_limit = 1000 # Maximum number of IMAP connections allowed for a user from each IP address. # NOTE: The username is compared case-sensitively. # Default is 10. # Increase it to avoid issue like below: # "Maximum number of concurrent IMAP connections exceeded" mail_max_userip_connections = 100 } protocol pop3 { mail_plugins = $mail_plugins pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv # Maximum number of IMAP connections allowed for a user from each IP address. # NOTE: The username is compared case-sensitively. # Default is 10. mail_max_userip_connections = 100 #process_limit = 1000 # POP3 logout format string: # %i - total number of bytes read from client # %o - total number of bytes sent to client # %t - number of TOP commands # %p - number of bytes sent to client as a result of TOP command # %r - number of RETR commands # %b - number of bytes sent to client as a result of RETR command # %d - number of deleted messages # %m - number of messages (before deletion) # %s - mailbox size in bytes (before deletion) # Default format doesn't have 'in=%i, out=%o'. #pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s, in=%i, out=%o } # Login processes. Refer to Dovecot wiki for more details: # http://wiki2.dovecot.org/LoginProcess ################### LAST LOGIN START protocol imap { # Append plugin name `last_login` here mail_plugins = last_login } protocol pop3 { # Append plugin name `last_login` here mail_plugins = last_login } dict { # Add this line. For FreeBSD, please replace the path by # /usr/local/etc/dovecot/dovecot-last-login.conf lastlogin = mysql:/etc/dovecot/dovecot-last-login.conf } plugin { # Add 2 lines last_login_dict = proxy::lastlogin last_login_key = last-login/%s/%u/%d/%r/%l } ################### LAST LOGIN END # Login processes. Refer to Dovecot wiki for more details: # http://wiki2.dovecot.org/LoginProcess ###################### service imap-login { service_count = 0 process_min_avail = 50 process_limit = 256 } service imap { process_limit = 2048 process_min_avail = 50 service_count = 1 vsz_limit = 512 M } ######################## service pop3-login { service_count = 0 process_min_avail = 25 process_limit = 256 } service pop3 { service_count = 1 process_limit = 256 process_min_avail = 25 } ########################## ############## #service imap-login { #inet_listener imap { # port = 143 #} #inet_listener imaps { # port = 993 # ssl = yes #} # service_count = 1 # To avoid startup latency for new client connections, set process_min_avail # to higher than zero. That many idling processes are always kept around # waiting for new connections. #process_min_avail = 0 # number of simultaneous IMAP connections # process_limit = 500 # vsz_limit should be fine at its default 64MB value #vsz_limit = 64M #} #service pop3-login { #inet_listener pop3 { # port = 110 #} #inet_listener pop3s { # port = 995 # ssl = yes #} # service_count = 1 # number of simultaneous POP3 connections #process_limit = 500 #} ############## Commented by service managesieve-login { inet_listener sieve { # Listen on localhost (ipv4) address = 127.0.0.1 port = 4190 } } namespace { type = private separator = / prefix = inbox = yes # Refer to document for more details about alias mailbox: # http://wiki2.dovecot.org/MailboxSettings # # Sent mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox "Sent Items" { auto = no special_use = \Sent } mailbox Drafts { auto = subscribe special_use = \Drafts } # Trash mailbox Trash { auto = subscribe special_use = \Trash } mailbox "Deleted Messages" { auto = no special_use = \Trash } # Junk mailbox Junk { auto = subscribe special_use = \Junk } mailbox Spam { auto = no special_use = \Junk } mailbox "Junk E-mail" { auto = no special_use = \Junk } # Archive mailbox Archive { auto = no special_use = \Archive } mailbox Archives { auto = no special_use = \Archive } } namespace { type = shared separator = / prefix = Shared/%%u/ location = maildir:%%Lh/Maildir/:INDEX=%%Lh/Maildir/Shared/%%Ld/%%Ln # this namespace should handle its own subscriptions or not. subscriptions = yes list = children } # Public mailboxes. # Refer to Dovecot wiki page for more details: # http://wiki2.dovecot.org/SharedMailboxes/Public #namespace { # type = public # separator = / # prefix = Public/ # location = maildir:/var/vmail/public:CONTROL=%Lh/Maildir/public:INDEXPVT=%Lh/Maildir/public # # # Allow users to subscribe to the public folders. # subscriptions = yes #} !include_try /etc/dovecot/iredmail/*.conf ################################## many thanks rajesh

2 1

dovecot error
by Rajesh M 10 Dec '21

10 Dec '21

1 0

RE: virtual mailbox domains??
by postfix＠aecperformance.com 09 Dec '21

09 Dec '21

Thanks *so much* for all your help. Another complete rebuild and I think I’ve finally got it. I was able to log into mail.sizzelicks.com for smoker1(a)sizzelicks.com <mailto:smoker1@sizzelicks.com> this time with no trouble. I sent an email to smoker1(a)sizzelicks.com <mailto:smoker1@sizzelicks.com> from a gmail account and was able to retrieve it in Thunderbird. I replied to the gmail email and in gmail.com I got the response. Now I can add email accounts to the database for any of our domains and they work! I've added responses below. -----Original Message----- From: owner-postfix-users(a)postfix.org <owner-postfix-users(a)postfix.org> On Behalf Of raf Sent: Thursday, December 9, 2021 1:07 AM To: postfix-users(a)postfix.org Subject: Re: virtual mailbox domains?? On Tue, Dec 07, 2021 at 10:25:44AM -0500, <mailto:postfix@aecperformance.com> postfix(a)aecperformance.com wrote: > Sorry I sent this from the wrong email address. > > VPS Ubuntu 20.04 postfix 3.4.13 and dovecot 2.3.7.2 > > I'm making progress but still not there. > > Any help would be greatly appreciated. > > I'm getting the errors: > > warning: SASL: Connect to private/auth failed: Connection refused > > fatal: no SASL authentication mechanisms > > > > I have a param in main.cf: smtpd_sasl_path = private/auth > > I do not have a folder /etc/postfix/private/auth > > I do have a folder /etc/postfix/auth but nothing is in it. > > How can I fix this error? The reference to private/auth is referring to dovecot's authentication socket under postfix's chroot directory. It's in /var/spool/postfix/private/auth, not /etc/postfix. You have set that up in dovecot's config: service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } My version of that looks like: service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } } So it looks like that should be OK. Does /var/spool/postfix/private/auth exist? Mine has root as owner/group. Yours should have postfix as owner/group. But that shouldn't matter as long as the mode is 0666. I must of changed the mode to 0660 but per your suggestion I changed it to 0666. Thanks. Yes it does exist. ls -l /var/spool/postfix/private/auth srw-rw---- 1 postfix postfix 0 Dec 8 21:50 /var/spool/postfix/private/auth If not, check dovecot's log messages for problems with it. But I don't know what to look for. The dovecot mailing list folks might be more useful for that. It should exist and be used by dovecot. If you have lsof installed, you can check that: > sudo lsof /var/spool/postfix/private/auth COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME dovecot 17341 root 53u unix 0xffff8e43c69f7400 0t0 16873340 /var/spool/postfix/private/auth type=STREAM auth 1521507 dovecot 13u unix 0xffff8e43c69f7400 0t0 16873340 /var/spool/postfix/private/auth type=STREAM auth 1521507 dovecot 21u unix 0xffff8e43c417c800 0t0 69451443 /var/spool/postfix/private/auth type=STREAM auth 1521507 dovecot 22u unix 0xffff8e43c9fc2400 0t0 69453124 /var/spool/postfix/private/auth type=STREAM sudo lsof /var/spool/postfix/private/auth COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME dovecot 4550 root 58u unix 0x0000000000000000 0t0 1305802532 /var/spool/postfix/private/auth type=STREAM Something else that might or might not be a (different) problem is that the TLS certificate at mail.sizzlelicks.com doesn't certify the domain mail.sizzlelicks.com. Its list of domains contains sizzelicks.com and <http://www.sizzelicks.com> www.sizzelicks.com but not mail.sizzelicks.com. That might cause problems with Thunderbird trying to connect for IMAPS. I think you reported such an error message earlier. So you might want to add the mail.sizzelicks.com domain to that certificate. But that's not related to the failure to connect to the dovecot auth socket. You are correct and I sure wish I saw *this* a week ago😊. I did a rebuild due to lots of trouble trying to add the certs. Now I’ve got it all back up with the certificates for all of the mail.mydomain.com MX records. THANK YOU cheers, raf > -----Original Message----- > From: <mailto:owner-postfix-users@postfix.org> owner-postfix-users(a)postfix.org > < <mailto:owner-postfix-users@postfix.org> mailto:owner-postfix-users@postfix.org> > <owner-postfix-users(a)postfix.org > < <mailto:owner-postfix-users@postfix.org> mailto:owner-postfix-users@postfix.org> > On Behalf Of Wietse Venema > Sent: Monday, December 6, 2021 11:04 AM > To: Postfix users <postfix-users(a)postfix.org > < <mailto:postfix-users@postfix.org> mailto:postfix-users@postfix.org> > > Subject: Re: virtual mailbox domains?? > > > > < <mailto:postfix@aecperformance.com> mailto:postfix@aecperformance.com> <mailto:postfix@aecperformance.com> postfix(a)aecperformance.com: > > > Command: sudo postfix status > > > postfix/postfix-script: the Postfix mail system is running: PID: > > 38284 > > > > Good. > > > > > I attempted to send an email to < <mailto:smoker1@sizzelicks.com> mailto:smoker1@sizzelicks.com> > <mailto:smoker1@sizzelicks.com> smoker1(a)sizzelicks.com > > > < < <mailto:smoker1@sizzelicks.com> mailto:smoker1@sizzelicks.com> <mailto:smoker1@sizzelicks.com> mailto:smoker1@sizzelicks.com> . > > It > bounced. > > > > What is the Postfix logging for this? Be sure to include more than > only the delivery error (i.e. logging from pickup or smtpd; cleanup; qmgr; ...). > > > > This is the first problem that you need to fix. > > > > > In the log I see a few attempts to connect from spammers. I do not > > see > > > my laptop IP or anything at all about what I did. > > > > That is the second problem to fix. I suspect a firewalling or routing > problem. > > > > Wietse >

1 0

Force clients to use pgp encryption when sending email?
by Austin Witmer 09 Dec '21

09 Dec '21

Hello all! I am looking for a way to force imap clients to encrypt their messages with the public keys of the recipients before sending them. Would a post-login script in dovecot work for something like this? I am using postfix and dovecot on my mail server. Basically I want the server to check if the message being sent is encrypted with OpenGPG and either proceed or reject the message based on that criteria. If the message is rejected, the user could then encrypt the outgoing email message with the recipient public key and try again. Does anybody have a suggestion on how to implement something like this? Would there be a way that the the client software (thunderbird) could show an alert asking the user to encrypt the message and then attempt to resend the message? I realize that you can tell a client (like thunderbird) to automatically encrypt outgoing messages with pgp but I would like to have some way to enforce that policy at the server level before the email is sent. I want to have all messages end-to-end encrypted, hence my desire for functionality like this. Any suggestions are welcome. Thanks in advance for your help!

3 4

Mailbox connection fails: Connection closed (No commands sent) Help please
by postfix＠aecperformance.com 09 Dec '21

09 Dec '21

I would greatly appreciate help with this. VPS ubuntu 20.04 postfix 3.4.13 dovecot 2.3.7.2 I'm trying to set up postfix with dovecot for virtual mailboxes using mysql I have a database mailserver with tables virtual_domains, virtual_users & virtual_aliases Using postmap I've tested all connections and gotten correct responses (1, 1, smoker1(a)sizzelicks.com <mailto:smoker1@sizzelicks.com> ) I have a domain: sizzelicks.com and an email address smoker1(a)sizzelicks.com <mailto:smoker1@sizzelicks.com> The password for the user is encrypted with sha512-CRYPT My VPS IP is: 194.163.45.150 MX test from: https://mxtoolbox.com/SuperTool.aspx?action=mx%3asizzelicks.com&run=toolpage I set up a mailbox for smoker1(a)sizzelicks.com <mailto:smoker1@sizzelicks.com> in Thunderbird: IMAP and SMTP server: mail.sizzelicks.com IMAP port: 993 SMTP port: 587 IMAP connection security: SSL/TLS SMTP connection security: STARTTLS When I try to connect to the mailbox Thunderbird returns this: server mail.sizzelicks.com has disconnected. The server may have gone down or there may be a network problem. mail.log Dec 7 21:16:02 softlinksys dovecot: imap-login: Login: user=, method=PLAIN, rip=67.8.3.170, lip=194.163.45.150, mpid=63115, TLS, session= Dec 7 21:16:02 softlinksys dovecot: imap(smoker1(a)sizzelicks.com)<63115>: Connection closed (No commands sent) in=0 out=388 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Dec 7 21:16:04 softlinksys dovecot: imap-login: Login: user=, method=PLAIN, rip=67.8.3.170, lip=194.163.45.150, mpid=63117, TLS, session= Dec 7 21:16:04 softlinksys dovecot: imap(smoker1(a)sizzelicks.com)<63117>: Connection closed (No commands sent) in=0 out=388 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Dovecot -n # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.2 () # OS: Linux 5.4.0 x86_64 Ubuntu 20.04.3 LTS ext4 # Hostname: softlinksys.com auth_mechanisms = plain login mail_location = maildir:/var/mail/vhosts/%d/%n mail_privileged_group = mail 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 { driver = pam } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } postmaster_address = postmaster at aecperformance.com protocols = imap pop3 lmtp service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } } ssl = required ssl_cert = </etc/letsencrypt/live/aecperformance.com/fullchain.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } userdb { args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n driver = static } Kristy Atkins ViviData SaaS

5 8

Unexpected variable expand behavior
by Евгений Бахтин 09 Dec '21

09 Dec '21

2 1

No source packages in APT repo?
by Shawn Heisey 08 Dec '21

08 Dec '21

I added a deb-src entry to my APT config matching the deb entry: deb https://repo.dovecot.org/ce-2.3-latest/ubuntu/focal focal main deb-src https://repo.dovecot.org/ce-2.3-latest/ubuntu/focal focal main When this is there, I see a warning when running "apt update". W: Skipping acquire of configured file 'main/source/Sources' as repository 'https://repo.dovecot.org/ce-2.3-latest/ubuntu/focal focal InRelease' does not seem to provide it (sources.list entry misspelt?) Were source packages excluded deliberately? The github repo for dovecot does not have a "debian" directory, which is the other route that would allow me to build packages. Thanks, Shawn

3 6

#define DUPLICATE_LOCK_MAX_LOCKS 100
by Vladimir Gulas 08 Dec '21

08 Dec '21

Hello, dovecot --version 2.3.17 (e2aa53df5b) debug log: Debug: duplicate db: transaction: Too many duplicate IDs locked Debug: duplicate db: transaction: Check ID: too many IDs locked - .sieve with 100+ redirects ( 201 actually ) #define DUPLICATE_LOCK_MAX_LOCKS 100 It's not corresponding with sieve_max_redirects = 310 or sieve_max_actions = 320 On dovecot 2.3.16 version DUPLICATE_LOCK_MAX_LOCKS is not implemented and redirects work correctly. Thank you. Vladimir Gulas.

1 0

app-specific passwords for dovecot
by mj 08 Dec '21

08 Dec '21

Hi all, I have read these documents on the subject of app-specific passwords: > https://www.dgsiegel.net/news/2013_05_21-application_specific_passwords_for… > https://www.happyassassin.net/posts/2014/08/26/adding-application-specific-… But since both articles are rather old, I'd like to ask if there are other/new ways of implementing app-specific passwords for dovecot/imap and postfix/smtp. Also perhaps (web?) GUI's exist, to make it possible for the users themselves to generate/edit those passwords..? Thanks for your suggestions! MJ

1 0