dovecot.conf

protocols = imap pop3 sieve
log_timestamp = "%Y-%m-%d %H:%M:%S "
mail_location = maildir:/home/vmail/%d/%n/Maildir
#mail_location = mdbox:/home/vmail/%d/%n/Mdbox

ssl_cert = <cert.pem
ssl_key = <key.pem

mail_plugins = zlib

mdbox_rotate_size = 2M

namespace inbox {
  type = private
  separator = .
  prefix = INBOX.
  inbox = yes

  mailbox Drafts {
    special_use = \Drafts
    auto = subscribe
  }

  mailbox Junk {
    special_use = \Junk
    auto = create
  }

  mailbox "Junk Mail" {
    special_use = \Junk
    auto = no
  }

  mailbox "Junk E-mail" {
    special_use = \Junk
    auto = no
  }

  mailbox spam {
    special_use = \Junk
    auto = no
  }

  mailbox Spam {
    special_use = \Junk
    auto = no
  }

  mailbox Trash {
    special_use = \Trash
    auto = subscribe
  }

  mailbox Sent {
    special_use = \Sent
    auto = subscribe
  }

  mailbox "Sent Mail" {
    special_use = \Sent
    auto = no
  }

  mailbox "Sent Messages" {
    special_use = \Sent
    auto = no
  }

  mailbox Archive {
    special_use = \Archive
    auto = create
  }

  mailbox "Archives" {
    special_use = \Archive
    auto = no
  }
}

service auth {
    unix_listener auth-master {
        mode = 0600
        user = vmail
    }

    unix_listener /var/spool/postfix/private/auth {
        mode = 0666
        user = postfix
        group = postfix
    }

user = root
}

service auth-worker {
    user = root
}

protocol lda {
    log_path = /home/vmail/dovecot-deliver.log
    auth_socket_path = /var/run/dovecot/auth-master
    postmaster_address = postmaster@example.com

    mail_plugins = zlib
}

protocol pop3 {
    pop3_uidl_format = %08Xu%08Xv
    mail_plugins = $mail_plugins zlib
}

protocol imap {
    mail_plugins = $mail_plugins zlib imap_zlib
}

passdb {
    driver = sql
    args = /etc/dovecot/dovecot-sql.conf.ext
}

userdb {
    driver = sql
    args = /etc/dovecot/dovecot-sql.conf.ext
}

plugin {

  zlib_save = gz
  zlib_save_level = 6

}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
}
service managesieve {
}
protocol sieve {
    managesieve_max_line_length = 65536
    managesieve_implementation_string = dovecot
    log_path = /var/log/dovecot-sieve-errors.log
    info_log_path = /var/log/dovecot-sieve.log
}
plugin {
sieve = /home/vmail/%d/%n/dovecot.sieve
sieve_global_path = /etc/dovecot/sieve/default.sieve
sieve_dir = /home/vmail/%d/%n/sieve
sieve_global_dir = /etc/dovecot/sieve/global/
}
protocol lda {
    mail_plugins = $mail_plugins sieve quota
    postmaster_address = postmaster@example.com
    hostname = server.example.com
    auth_socket_path = /var/run/dovecot/auth-master
    log_path = /var/log/dovecot-lda-errors.log
    info_log_path = /var/log/dovecot-lda.log
}
protocol lmtp {
    mail_plugins = $mail_plugins sieve quota
    log_path = /var/log/dovecot-lmtp-errors.log
    info_log_path = /var/log/dovecot-lmtp.log
}
service stats {
    unix_listener stats-reader {
        user = vmail
        group = vmail
        mode = 0660
    }

    unix_listener stats-writer {
        user = vmail
        group = vmail
        mode = 0660
    }
}