- dovecot - dovecot.org

resend whole inbox to user
by Marc 07 Apr '22

07 Apr '22

I was wondering if there is some way to force an imap client to 're-download' all the messages from the inbox. I can remember in the 'old days' that when the connection was dropped during a pop download, the whole inbox was re-downloaded, resulting in quite a lot of duplicates. I am looking for such action.

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macOS ManageSieve client?
by Gerben Wierda 07 Apr '22

07 Apr '22

I have a dovecot & dovecot-sieve running under MacPorts on my macOS ’server’. I do a very low tech maintenance on sieve, by using the cli on the server and edit sieve by hand for myself. I’d like to open this up to other users. How do people use this from their macOS clients? For this, the ManageSieve protocol exists and this is implemented by dovecot-sieve, but other than installing roundcube and offering a web-based mail client that also supports ManageSieve, is there another way? A ManageSieve client that directly runs on the macOS client and interfaces with dovecot-sieve on the server? After all, routing mail to different mailboxes better happens server-side so that all clients profit. Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>) R&A IT Strategy <https://ea.rna.nl/> (main site) Book: Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Book: Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/>

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remove duplicate emails
by Jean-Max Reymond 06 Apr '22

06 Apr '22

Hi, I have postfix running and sometimes and I have some duplicate emails with the same Message-ID. With dovecot sieve, I understand that duplicate option remove these emails but I don't understand the configuration to apply. Thanks for your tips, # doveconf -n # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.2 () # OS: Linux 5.4.0-104-generic x86_64 Ubuntu 20.04.4 LTS # Hostname: B7B3274.online-server.cloud auth_mechanisms = plain login first_valid_uid = 8 log_path = /var/log/dovecot.log mail_location = maildir:~ 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 Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } } ssl_cert = </etc/letsencrypt/live/mail.maxou.fr/fullchain.pem ssl_cipher_list = ALL:!LOW:!SSLv2:ALL:!aNULL:!ADH:!eNULL:!EXP:RC4+RSA:+HIGH:+MEDIUM ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol imap { imap_client_workarounds = delay-newmail mail_max_userip_connections = 50 } protocol pop3 { mail_max_userip_connections = 10 pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol lda { deliver_log_format = msgid=%m: %$ mail_plugins = sieve postmaster_address = postmaster quota_full_tempfail = yes rejection_reason = Your message to <%t> was automatically rejected:%n%r }

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Postfix - Dovecot alias
by John Doe 06 Apr '22

06 Apr '22

Hello, I have the problem with aliases. The emails did not delivery to correct email. I send email to email: to_alias(a)domain.com that is valid alias and email should be sent to real email folder: to(a)domain.com. Dovecot creating to_alias folder and deliver the emails there. Here is the email log: / did not see to(a)domain.com below / Apr 5 18:54:40 www postfix/smtpd[30547]: connect from mail-40137.protonmail.ch[185.70.40.137] Apr 5 18:54:40 www postfix/smtpd[30547]: Anonymous TLS connection established from mail-40137.protonmail.ch[185.70.40.137]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384 Apr 5 18:54:52 www postfix/smtpd[30547]: 85A412E19B6: client= mail-40137.protonmail.ch[185.70.40.137] Apr 5 18:54:52 www postfix/cleanup[30556]: 85A412E19B6: message-id=<M07eijxF0PArGZ92wKYpeCndUNv5g3kSEgYljlhYwOVPxIor3AmNRxrPyNK9T8GcncG1dmxS6Lv35IfR5ompsUPEGPucNn9SjxkMxAgHzhI=@ protonmail.com> Apr 5 18:54:53 www dccifd[1856]: stat(log directory "log"): No such file or directory Apr 5 18:54:57 www postfix/qmgr[1398]: 85A412E19B6: from=< from(a)protonmail.com>, size=2767, nrcpt=1 (queue active) Apr 5 18:54:57 www postfix/smtpd[30547]: disconnect from mail-40137.protonmail.ch[185.70.40.137] ehlo=2 starttls=1 mail=1 rcpt=1 data=1 quit=1 commands=7 Apr 5 18:54:57 www dovecot: lmtp(30559): Connect from local Apr 5 18:54:57 www dovecot: lmtp(compiz(a)domain.com)<30559><U8KALFFmTGJfdwAA8oMCvw>: sieve: msgid=<M07eijxF0PArGZ92wKYpeCndUNv5g3kSEgYljlhYwOVPxIor3AmNRxrPyNK9T8GcncG1dmxS6Lv35IfR5ompsUPEGPucNn9SjxkMxAgHzhI=@ protonmail.com>: stored mail into mailbox 'INBOX' Apr 5 18:54:57 www postfix/lmtp[30558]: 85A412E19B6: to=< to_alias(a)domain.com>, relay=mail.domain.com[private/dovecot-lmtp], delay=17, delays=17/0.01/0.01/0.01, dsn=2.0.0, status=sent (250 2.0.0 < to_alias(a)domain.com> U8KALFFmTGJfdwAA8oMCvw Saved) Apr 5 18:54:57 www dovecot: lmtp(30559): Disconnect from local: Logged out (state=READY) Apr 5 18:54:57 www postfix/qmgr[1398]: 85A412E19B6: removed I was playing with password_query but not sure did I'm on right direction. password_query = \ SELECT username AS user, password, \ '/var/spool/postmail/%d/%n' AS userdb_home, 1002 AS userdb_uid, 1001 AS userdb_gid \ FROM mailbox WHERE username = (SELECT goto FROM alias WHERE address = '%u') I'm using dovecot --version: 2.3.18 (9dd8408c18) and my configuration is: # 2.3.18 (9dd8408c18): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.18 (0bc28b32) # OS: Linux 5.17.0 x86_64 Slackware 15.0+ ext4 # Hostname: www.ixip.net base_dir = /var/run/dovecot/ default_login_user = nobody dict { driver = sql quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_location = maildir:/var/spool/postmail/%d/%n/Maildir 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 list = 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 = type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = /var/spool/postmail/%d/%n/.dovecot.sieve sieve_dir = /var/spool/postmail/%d/%n/sieve/ sieve_global_dir = /var/lib/dovecot/sieve sieve_global_path = /var/lib/dovecot/sieve/default.sieve } protocols = imap lmtp sieve sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service imap-login { inet_listener imap { address = 127.0.0.1 port = 143 } inet_listener imaps { address = 127.0.0.1 port = 993 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } user = vmail } service managesieve-login { inet_listener sieve { address = 127.0.0.1 port = 4190 } service_count = 1 vsz_limit = 64 M } ssl_cert = </etc/postfix/ssl/mail.stzbg.com.crt ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = uid=1002 gid=1001 home=/var/spool/postmail/%d/%n allow_all_users=yes driver = static } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } protocol lmtp { mail_plugins = " sieve" } protocol lda { mail_plugins = " sieve" } protocol sieve { managesieve_implementation_string = Dovecot Pigeonhole } # grep -v '^ *$#.*$\?$' dovecot-sql.conf.ext driver = mysql connect = host=localhost dbname=postfix user=postfix password=password default_pass_scheme = CRYPT password_query = SELECT username AS user, password FROM mailbox WHERE username = '%u'; Kind Regards, Chris

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Support of "extlists" in sieve filters
by Marcin Bajer 04 Apr '22

04 Apr '22

Hi all, Don’t really know if this is sth. to post on this forum, but I tried to make a sieve filter which tags mails from my contacts by the category of the contact. Seems this feature is available in Protonmail: https://protonmail.com/support/knowledge-base/sieve-advanced-custom-filters/ require [“fileinto”, “extlists”]; Checks that the sender is in your personal address book if header :list “from” “:addrbook:personal?label=Family” { fileinto “Known”; } Would it be possible to implement such feature also in dovecot? BR, Marcin

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Replication issues with 2.3.18 - Replication fails after xxx folders reached.
by Paul Kudla (SCOM.CA Internet) 02 Apr '22

02 Apr '22

please appreciate that i am trying to help .... after much testing i can now reporduce the replication issues at hand I am running on freebsd 12 & 13 stable (both test and production servers) sdram drives etc ... Basically replication works fine until reaching a folder quantity of ~ 256 or more to reproduce using doveadm i created folders like INBOX/folder-0 INBOX/folder-1 INBOX/folder-2 INBOX/folder-3 and so forth ...... I created 200 folders and they replicated ok on both servers I created another 200 (400 total) and the replicator got stuck and would not update the mbox on the alternate server anymore and is still updating 4 days later ? basically replicator goes so far and either hangs or more likely bails on an error that is not reported to the debug reporting ? however dsync will sync the two servers but only when run manually (ie all the folders will sync) I have two test servers avaliable if you need any kind of access - again here to help. [07:28:42] mail18.scom.ca [root:0] ~ # sync.status Queued 'sync' requests 0 Queued 'high' requests 6 Queued 'low' requests 0 Queued 'failed' requests 0 Queued 'full resync' requests 0 Waiting 'failed' requests 0 Total number of known users 255 username type status paul(a)scom.ca normal Waiting for dsync to finish keith(a)elirpa.com incremental Waiting for dsync to finish ed.hanna(a)dssmgmt.com incremental Waiting for dsync to finish ed(a)scom.ca incremental Waiting for dsync to finish nick(a)elirpa.com incremental Waiting for dsync to finish paul(a)paulkudla.net incremental Waiting for dsync to finish i have been going through the c code and it seems the replication gets requested ok replicator.db does get updated ok with the replicated request for the mbox in question. however i am still looking for the actual replicator function in the lib's that do the actual replication requests the number of folders & subfolders is defanately the issue - not the mbox pyhsical size as thought origionally. if someone can point me in the right direction, it seems either the replicator is not picking up on the number of folders to replicat properly or it has a hard set limit like 256 / 512 / 65535 etc and stops the replication request thereafter. I am mainly a machine code programmer from the 80's and have concentrated on python as of late, 'c' i am starting to go through just to give you a background on my talents. It took 2 months to finger this out. this issue also seems to be indirectly causing the duplicate messages supression not to work as well. python programming to reproduce issue (loops are for last run started @ 200 - fyi) : # cat mbox.gen #!/usr/local/bin/python2 import os,sys from lib import * user = 'paul(a)paulkudla.net' """ for count in range (0,600) : box = 'INBOX/folder-%s' %count print count command = '/usr/local/bin/doveadm mailbox create -s -u %s %s' %(user,box) print command a = commands.getoutput(command) print a """ for count in range (0,600) : box = 'INBOX/folder-0/sub-%' %count print count command = '/usr/local/bin/doveadm mailbox create -s -u %s %s' %(user,box) print command a = commands.getoutput(command) print a #sys.exit()

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falsely log "auth: unknown user" when multiple userdb
by Anthony Panko 01 Apr '22

01 Apr '22

Hello, When there is a multiple userdb to look for user, Dovecot log «auth: unknown user» when the first userdb search failed. Then Dovecot successfully search user in the second userdb and things works. But "auth: unknown user" event left in a logs. Logs look like this: Apr 1 12:38:48 mail dovecot[75384]: lmtp(75397): Connect from 127.0.5.1 Apr 1 12:38:48 mail dovecot[75384]: auth: ldap(order(a)XXX,127.0.5.1): unknown user Apr 1 12:38:48 mail dovecot[75384]: lmtp(order)<75397><D8m2HCjIRmKFJgEAABdyCg>: msgid=<157609214.20220331172309@YYY>: saved mail to INBOX Debug show failed search in the first userdb and successfull search in the second userdb. When user found in the first userdb «unknown user» event does not appear. Configuration is: userdb { args = /usr/local/etc/dovecot/udb-ldap-personal.conf driver = ldap override_fields = home=/mnt/mboxes/personal/%n } userdb { args = /usr/local/etc/dovecot/udb-ldap-general.conf driver = ldap override_fields = home=/mnt/mboxes/general/%n } Dovecot verision is 2.3.16 (7e2e900c1a). -- Best regards, Anthony Pankov

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Dovecot Submission - rate limiting
by itanguy＠univ-brest.fr 31 Mar '22

31 Mar '22

Hello, is there any way to rate limit submission mail (counting per user) when using Dovecot/Submission (no Postfix)? Using a milter seems impossible. Using Dovecot Events seems "too" global (not per users discrimination). Maybe rate-limiting has to be external and then include in the pass_db query ? Thank your for any hints. Ismaël Tanguy

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Simplifying Support of Virtual and System Users
by Mark Olbert 29 Mar '22

29 Mar '22

Apologies if this has already been raised here (which I suspect it has 😊). I tried to raise it as an issue over on github but issues are not enabled for the repository. The support for mixing virtual users, with fully-qualified email addresses, and system users could be simpler. Assuming it doesn’t mess up other stuff in the code base, of course 😊. The problem appears to be that the PAM passwd module requires just user names without a domain (which makes sense given that they’re system users) but does not, so far as I can see, support the username_format argument. In my setup, the default structure of 10-auth.conf demonstrates this: auth_username_format = %n That means all username arguments lack the domain part…which complicates using fully-qualified ones for virtual users. I realize I could assign arbitrary unique names to the virtual accounts in the lookup file. But that complicates administering the system, so I want to be able to include the domain for virtual users. After about five hair-pulling hours of wrestling with the configuration I stumbled across an answer utilizing conditionals<https://serverfault.com/questions/260488/dovecot-user-lookup-fails-when-usi…> on ServerFault. It works fine. But being able to pass a username_format parameter to the PAM module (which I tried, but it was rejected) would be a lot simpler, and a lot more intuitive. - Mark

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IMAP sync issue in email clients
by ChandranManikandan 29 Mar '22

29 Mar '22

Hi Friends, Some few email accounts are sync issues come in outlook,thunderbird,roundcube and squirrelmail after power shutdown suddenly. The dovecot mail log is shown below for those email accounts. Can anyone help me to fix it? imap(email(a)xxx.com)<19758><bW/i3lTbheQxJd/8>: Error: Mailbox INBOX: UID=502283: read(/home/vpopmail/domains/ xxx.com/email/Maildir/cur/1648520174.28570.mail.xxx.com,S=13720:2,) failed: Cached message size larger than expected (13720 > 0, box=INBOX, UID=502283) (read reason=mail stream) Mar 29 13:40:48 imap(email(a)xxx.com)<19758><bW/i3lTbheQxJd/8>: Error: Corrupted record in index cache file /home/vpopmail/domains/ xxx.com/email/Maildir/dovecot.index.cache: Broken physical size in mailbox INBOX: read(/home/vpopmail/domains/ xxx.com/email/Maildir/cur/1648520174.28570.mail.xxx.com,S=13720:2,) failed: Cached message size larger than expected (13720 > 0, box=INBOX, UID=502283) Mar 29 13:40:48 imap(email(a)xxx.com)<19758><bW/i3lTbheQxJd/8>: Error: Mailbox INBOX: UID=502283: read(/home/vpopmail/domains/ xxx.com/email/Maildir/cur/1648520174.28570..mail.xxx.com,S=13720:2,) failed: Cached message size larger than expected (13720 > 0, box=INBOX, UID=502283) (read reason=) Mar 29 13:40:48 imap(email(a)xxx.com)<19758><bW/i3lTbheQxJd/8>: Info: FETCH failed: Internal error occurred. Refer to server log for more information. [2022-03-29 13:40:48] in=323 out=589163 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 -- *Regards,Manikandan.C*

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