Dovecot 2.4 - Example config

17 Feb 2025


      Hi
For those struggling with the new config, here an example I am using
(Xapian, Sieve, mdbox, LMTP, ...)

dovecot_config_version = 2.4.0
dovecot_storage_version = 2.4.0
base_dir = /run/dovecot
state_dir = /var/lib/dovecot
default_login_user = dovecot
listen = * ::
verbose_proctitle = yes
mail_gid = mail
mail_uid = mailusers
mail_driver = mdbox
mail_path = /data/mails/%{user | domain }/%{user | username }
mail_home = /data/mails/%{user | domain }/%{user | username }
mail_plugins = fts fts_xapian
# mail_debug = yes
# mail_cache_max_size = 128M
ssl_server_cert_file = /etc/letsencrypt/live/gjnet/fullchain.pem
ssl_server_key_file = /etc/letsencrypt/live/gjnet/privkey.pem
ssl_server_dh_file = /etc/mail/dovecot/dh.pem
mdbox_rotate_size = 64M
default_vsz_limit = unlimited
sendmail_path = /usr/sbin/sendmail
sql_driver = mysql
mysql localhost {
user = services
password = MYPASSWORD
dbname = services
}
fts xapian {
}
fts_autoindex = yes
fts_decoder_driver = script
fts_decoder_script_socket_path = decode2text
sieve_script default {
type = default
driver = file
path = /data/mails/sieve/default.sieve
}
sieve_script before {
type = before
driver = file
path = /data/mails/sieve/after.sieve
}
sieve_script after {
type = after
driver = file
path = /data/mails/sieve/after.sieve
}
sieve_script personal {
type = personal
driver = file
path = /data/mails/%{user | domain }/%{user | username }/sieve/
active_path = /data/mails/%{user | domain }/%{user | username
}/sieve/default.sieve
}
sieve_script global {
type = global
driver = file
path = /data/mails/sieve/
}
namespace inbox {
inbox = yes
     mailbox Trash {
             auto = subscribe
             special_use = \Trash
             fts_autoindex = no
     }

     mailbox Drafts {
             auto = subscribe
             special_use = \Drafts
     }

     mailbox Sent {
             auto = subscribe
             special_use = \Sent
     }

     mailbox Spam {
             auto = subscribe
             special_use = \Junk
     }
}
userdb sql {
query = SELECT 1 from users where user like '%{user | username}' and
domain like '%{user | domain}' and active=1
iterate_query = SELECT user AS username, domain FROM users where
active=1
}
passdb sql {
query = SELECT concat(user, '@', domain) AS user, password from
users where user like '%{user | username}' and domain like '%{user |
domain}' and active=1
}
service auth {
unix_listener auth-userdb {
mode = 0600
user = mailusers
}
}
protocols = imap pop3 sieve lmtp
service imap-login {
chroot =  login
process_min_avail = 8
restart_request_count = unlimited
}
service indexer-worker {
vsz_limit = 4G
}
protocol imap {
imap_client_workarounds = delay-newmail tb-extra-mailbox-sep
imap_max_line_length = 655360
mail_max_userip_connections = 256
}
service pop3-login {
chroot = login
}
protocol pop3 {
mail_max_userip_connections = 256
pop3_enable_last = yes
pop3_lock_session = no
pop3_reuse_xuidl = yes
}
service lmtp {
inet_listener lmtp {
address = 127.0.0.1 ::1
port = 24
}
 unix_listener lmtp {
     mode = 0666
 }

 process_min_avail = 8
}
service managesieve-login {
chroot = login
     inet_listener sieve {
             port = 4190
     }

     inet_listener sieveold {
             port = 2000
     }
}
protocol sieve {
managesieve_implementation_string = dovecot
mail_max_userip_connections = 256
managesieve_max_line_length = 65536
}
protocol lmtp {
mail_plugins {
fts = yes
fts_xapian = yes
sieve = yes
}
}
protocol lda {
auth_socket_path = /run/dovecot/auth-userdb
hostname = mx.grosjo.net
mail_plugins = $mail_plugins sieve
postmaster_address = admin@grosjo.net
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
 mail_plugins {
     fts = yes
     fts_xapian = yes
     sieve = yes
 }
}
service stats {
unix_listener stats-writer {
mode = 0660
user = mailusers
}
}
service decode2text {
executable = script /usr/libexec/dovecot/decode2text.sh
user = dovecot
unix_listener decode2text {
mode = 0666
}
}

Dovecot 2.4 - Example config

Joan Moreau