Dovecot Mail Server :: Mini How To 

Dovecot

Installation

Dovecot 1.0.15

wget -c http://dovecot.org/releases/1.0/dovecot-1.0.15.tar.gz
tar zxfv dovecot-1.0.15.tar.gz
cd dovecot
./configure --enable-header-install
make 
make install

#!/bin/bash
 ./configure \
	--with-notify=inotify \
	--with-ioloop=epoll \
	--with-mem-align=32 \
	--disable-ipv6 \
	--enable-header-install

Dovecot Sieve Plugin 1.0.3

wget -c http://dovecot.org/releases/sieve/dovecot-sieve-1.0.3.tar.gz
tar zxfv dovecot-sieve-1.0.3.tar.gz
cd dovecot-sieve-1.0.3
./configure --with-dovecot=/usr/local/lib/dovecot
make
make install

Configuration

dovecot.conf

# Dovecot configuration file
# ebal 12.03.2008

#Base directory where to store runtime data.
base_dir=/usr/local/var/run/

# protocols = imap pop3
protocols = imap
disable_plaintext_auth = no

# Logging
log_path = /var/log/dovecot.log
info_log_path = /var/log/dovecot.info.log
log_timestamp = "%b %d %H:%M:%S "

# SSL settings
ssl_disable = yes

# Login processes
login_user = dovecot
login_greeting = 'Hi buddy, have an account ?'
login_log_format = %$: %s

# Mailbox locations and namespaces
# mail_extra_groups = mail - this is an old conf value
mail_privileged_group = mail

# Mailbox locations and namespaces
mail_location = mbox:/var/mail/folders/%u/:INBOX=/var/mail/%u:INDEX=/var/mail/index/%u

# Doesnt work with dovecot 1.0.x
# mail_location= dbox:/var/mail/folders/%u

# Mail processes
mail_debug = no
# mail_debug = yes
mail_log_prefix = "%Us(%u): "
verbose_proctitle = yes
first_valid_uid = 1000
last_valid_uid = 5000

# Mail Optimaze
max_mail_processes = 512
mailbox_idle_check_interval = 30

# mbox-specific settings
mbox_read_locks = dotlock fcntl
mbox_write_locks = dotlock fcntl

# IMAP specific settings
protocol imap {
        listen = *:143
        imap_client_workarounds = tb-extra-mailbox-sep
}

# POP3 Specific Settings
protocol pop3 {
        listen = *:110
        pop3_no_flag_updates = no
        # unique mail identifier - Outlook 2003
        pop3_uidl_format = %08Xu%08Xv
}

# LDA specific settings
protocol lda {
        postmaster_address = ebal
        hostname = balinux
        mail_plugins = cmusieve
        log_path = /var/log/dovecot-local-deliver.log
        auth_socket_path = /usr/local/var/run/dovecot-auth-master
}

# Authentication processes
auth_verbose = yes
auth_debug = yes
auth_debug_passwords = yes

# Authentication Cache
auth_cache_size = 10240
auth_cache_ttl = 18000

auth default {
        mechanisms = plain

        passdb passwd-file {
                args = /usr/local/etc/dovecot.passdb
        }

        userdb passwd-file {
                args = /usr/local/etc/dovecot.passdb
        }

        user = root

# It's possible to export the authentication interface to other programs:
        socket listen {
          master {
            path = /usr/local/var/run/dovecot-auth-master
            mode = 0660
            user = dovecot
            group = mail
          }
        }

}

# plugin
plugin {
        sieve = /var/mail/folders/%u/.dovecot.sieve
}

dovecot.passwd

username:password:uid:gid:(gecos):home:(shell):extra_fields

ebal:{PLAIN}test:1001:1001:Evaggelos Balaskas
ebal2:{PLAIN}test:1001:1001:Evaggelos Balaskas

Encrypted Passwords

$ dovecotpw -p test -s MD5-CRYPT
{MD5-CRYPT}$1$5LH9m/w2$PhkXZLzBzSEQu0pWLwuO./

ebal:{MD5-CRYPT}$1$5LH9m/w2$PhkXZLzBzSEQu0pWLwuO./:1001:1001:Evaggelos Balaskas
ebal2:{MD5-CRYPT}$1$5LH9m/w2$PhkXZLzBzSEQu0pWLwuO./:1001:1001:Evaggelos Balaskas

Allow Login – Network Security

ebal:{MD5-CRYPT}$1$5LH9m/w2$PhkXZLzBzSEQu0pWLwuO./:1001:1001:Evaggelos Balaskas allow_nets=127.0.0.1,10.10.10.0/24
ebal2:{MD5-CRYPT}$1$5LH9m/w2$PhkXZLzBzSEQu0pWLwuO./:1001:1001:Evaggelos Balaskas allow_nets=127.0.0.1,10.10.20.0/24

Mailbox Formats

userdb_mail=maildir:~/Maildir

ebal:{MD5-CRYPT}$1$5LH9m/w2$PhkXZLzBzSEQu0pWLwuO./:1001:1001:Evaggelos Balaskas
ebal2:{MD5-CRYPT}$1$5LH9m/w2$PhkXZLzBzSEQu0pWLwuO./:1001:1001:Evaggelos Balaskas:::userdb_mail=maildir:/var/mail/folders/%u:INDEX=/var/mail/index/%u

Checks

/usr/local/sbin/dovecot -n

/usr/local/sbin/dovecot

tail -f /var/log/dovecot*log

pop3

$ telnet localhost pop3
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
+OK Hi buddy, have an account ?
user ebal
+OK
pass test
+OK Logged in.
^]

imap

$ telnet localhost imap
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
* OK Hi buddy, have an account ?
1 login ebal test
1 OK Logged in.
^]

$ telnet localhost imap
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
* OK Hi buddy, have an account ?
1 login ebal test
1 OK Logged in.
 
2 SELECT INBOX 
* FLAGS (\Answered \Flagged \Deleted \Seen \Draft $MDNSent $Label1 NonJunk $Forwarded $Label3 $Label2 $Label4 $Label5 Junk)
* OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft $MDNSent $Label1 NonJunk $Forwarded $Label3 $Label2 $Label4 $Label5 Junk \*)] Flags permitted.
* 8737 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1174418788] UIDs valid
* OK [UIDNEXT 112330] Predicted next UID 2 OK [READ-WRITE] Select completed.
 
2 LIST "" *
* LIST (\NoInferiors \UnMarked) "/" "draft"
* LIST (\NoInferiors \UnMarked) "/" "Trash"
* LIST (\NoInferiors \UnMarked) "/" "INBOX"
2 OK List completed.