September 2019 - dovecot

Sieve replication - does not replicate
by Daniel Botting 30 Sep '19

30 Sep '19

Hi, I have two servers replicating mail as required, the directory structure (per user), however they will not replicate the sieve scripts directory: server 1 Maildir sieve server 2 Maildir Output of doveconf -n on server 1: # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -Pn > dovecot-new.conf doveconf: Warning: Obsolete setting in /etc/dovecot/conf.d/10-ssl.conf:51: ssl_protocols has been replaced by ssl_min_protocol doveconf: Error: Could not find a minimum ssl_min_protocol setting from ssl_protocols = !SSLv2 !SSLv3: Unrecognized protocol 'SSLv2' doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -Pn > dovecot-new.conf doveconf: Warning: Obsolete setting in /etc/dovecot/conf.d/10-ssl.conf:51: ssl_protocols has been replaced by ssl_min_protocol doveconf: Error: Could not find a minimum ssl_min_protocol setting from ssl_protocols = !SSLv2 !SSLv3: Unrecognized protocol 'SSLv2' # OS: Linux 4.19.0-6-amd64 x86_64 Debian 10.1 # Hostname: a_tld auth_verbose = yes default_vsz_limit = 0 doveadm_password = # hidden, use -P to show it first_valid_gid = 8 first_valid_uid = 8 last_valid_gid = 8 last_valid_uid = 8 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_gid = 8 mail_location = maildir:~/Maildir mail_plugins = " notify replication" mail_uid = 8 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 editheader imapflags 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-ldap.conf.ext driver = ldap } plugin { mail_replica = tcps:a_tld:12345 sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +editheader +imapflags } protocols = " imap sieve pop3" replication_max_conns = 4 service aggregator { fifo_listener replication-notify-fifo { user = mail } unix_listener replication-notify { user = mail } } service auth { unix_listener /var/run/dovecot-exim-bridge { mode = 0660 user = Debian-exim } } service doveadm { inet_listener { port = 12345 ssl = yes } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_limit = 512 process_min_avail = 4 service_count = 1 } service imap { process_limit = 1024 } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 1 service_count = 8 vsz_limit = 256 M } service managesieve { process_limit = 1024 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl = required ssl_cert = </where/the_cert_is_installed/fullchain.pem ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap override_fields = home=/var/mail/%u uid=mail gid=mail } protocol lda { mail_plugins = " notify replication sieve" } protocol imap { mail_max_userip_connections = 32 mail_plugins = " notify replication" } protocol sieve { mail_max_userip_connections = 10 managesieve_logout_format = bytes=%i/%o managesieve_max_line_length = 65536 } The only error message I can see in the logs (/var/log/mail.err) is, this is not for every user and is only occasionally: Sep 30 14:46:34 imap2 dovecot: lda(a_user)<1306><f0JXJjoHkl0aBQAAZJ7A9A>: Error: sieve: Failed to initialize script execution: Invalid postmaster_address: invalid address `postmaster@' specified for the postmaster_address setting Any suggestions would be much appreciated. Cheers -- Daniel

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Only some encrypted mailboxes
by filbar＠centrum.cz 29 Sep '19

29 Sep '19

Hello I'm looking in plugin for encrypting mailboxes. Is possible to have encrypted only some of mailboxes and other not? Thanks, Filip Bartmann

1 0

dsync having problems with @-sign in mailbox names
by Philip Iezzi 28 Sep '19

28 Sep '19

Hi there We are running Cyrus-to-Dovecot migrations using dsync on destination Dovecot server (Debian Stretch / latest Dovecot 2.3.7.2 from community repo) like this: $ doveadm -o mail_fsync=never backup -R -u <username> imapc: For imapc configuration to connect to remote Cyrus server, see below [1]. While this works great for hundreds of mailaccounts, dsync fails with the following error on accounts with @-sign in mailbox names: dsync(<username>): Error: Failed to access mailbox INBOX/entrance/admin@example: Invalid mailbox name I can confirm, Dovecot supports @-sign in mailbox names and no client (tested with Thunderbird, Apple Mail, Roundcube webmail) has issue with this character. Also Cyrus was always supporting this. So I guess this is an issue with dsync. Can we somehow tune charset (UTF-8 ?) in imapc configuration? Thanks, Philip [1] /etc/dovecot/conf.d/90-migration.conf: ## IMAP imapc_host = imap.example.com imapc_port = 993 imapc_ssl = imaps imapc_ssl_verify = yes imapc_user = %u imapc_master_user = cyrus imapc_password = ********** imapc_features = rfc822.size fetch-headers mail_prefetch_count = 20 imapc_list_prefix = INBOX ## POP3 pop3c_host = pop3.example.com pop3c_port = 995 pop3c_ssl = pop3s pop3c_ssl_verify = yes pop3c_user = %u pop3c_master_user = cyrus pop3c_password = ********** namespace { prefix = POP3-MIGRATION-NS/ location = pop3c: list = no hidden = yes } protocol doveadm { mail_plugins = $mail_plugins pop3_migration } plugin { pop3_migration_mailbox = POP3-MIGRATION-NS/INBOX }

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Mail received but not indexed?
by Marc Roos 27 Sep '19

27 Sep '19

I have recently that some users are complaining about that they are not getting emails. While I see that they are delivered and in the inbox. When I do a doveadm force-resync -u xxxx INBOX it resolves the problem. I think this is something recent. Where/how should I resolve this issue? Recent changes 1. did some os updates 2019-08-27 2. provider took away the ssd for index storage (maybe config issue having less iops storage?) CentOS Linux release 7.6.1810 (Core) dovecot-2.2.36-3.el7.x86_64 mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u:CONTROL=~/mail/control:INDEX=/var/d ovecot2/%u/index:LAYOUT=maildir++ PS during force-resync, I am getting these "index/.INBOX/dovecot.index.log was locked for 176 seconds" on some users

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Debug one user possible?
by Marc Roos 27 Sep '19

27 Sep '19

Is it possible to mail debug just one user? Maybe via the userdb?

3 2

limits in high-security mode with ssl
by sergio 27 Sep '19

27 Sep '19

Hello. I'm using dovecot in high-security mode: service_count = 1 for imap-login service starttls is requires, so the maximum number of active connections is process_limit (which is set to 1024) for the same imap-login service. But with this setup I got: doveconf: Warning: service auth { client_limit=1000 } is lower than required under max. load (1324) doveconf: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1227) 1. Where did 1324 and 1227 come from? 2. How configuration should be updated so these warnings disappear? -- sergio.

1 0

doveadm / vsize
by Paul Macdonald 27 Sep '19

27 Sep '19

Hi, i want to keep track of user mailbox size, I'm using doveadm mailbox status -u <user> vsize INBOX for a given mailbox this is under reporting ( by a lot) is this recursive? what shoud i be using to get an accurate disk usage metric? thanks Paul. -- ------------------------- Paul Macdonald IFDNRG Ltd Web and video hosting ------------------------- t: 0131 5548070 m: 07970339546 e: paul(a)ifdnrg.com w: http://www.ifdnrg.com ------------------------- IFDNRG 40 Maritime Street Edinburgh EH6 6SA ---------------------------------------------------- Virtual Servers from £50.00pm High specification Dedicated Servers from £150.00pm ----------------------------------------------------

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Re: Website Down? Not down.
by dundir＠gmail.com 27 Sep '19

27 Sep '19

Its not down, its most likely your providers DNS resolution. www.dovecot.org resolves to: ipv4 : 94.237.85.39 ipv6: 2a04:3542:1000:910:acc1:5bff:fe5e:3b83 Best Regards, D.

3 2

Website down?
by ＠lbutlr 27 Sep '19

27 Sep '19

I am not able to reach the dovecot site on any one of three connections (home, office, mobile). Trying to look up DNS shows no records. -- But just because you've seen me on your TV Doesn't mean I'm any more enlightened than you

1 0

File manager or browser for IMAP?
by Steve Litt 26 Sep '19

26 Sep '19

Hi all, I could really use a file manager or browser to browse my Dovecot IMAP. Ideally it would have hotkeys to move, copy, delete and send. The send part needn't be coded: Just a call to a shellscript which can handle the send the way it's locally the most convenient. Anyone know of such a file manager or browser for IMAP? SteveT Steve Litt Author: The Key to Everyday Excellence http://www.troubleshooters.com/key Twitter: http://www.twitter.com/stevelitt

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