# nslookup
> server 192.168.0.177
> set q=any
> mydomain.com
> set q=mx
> mydomain.com
> quit

# service postfix status
# telnet 127.0.0.1 110
# telnet 127.0.0.1 25

# Postfix master process configuration file.  For details on the format
# of the file, see the master(5) manual page (command: "man 5 master").
#
# Do not forget to execute "postfix reload" after editing this file.
#
# ==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (yes)   (never) (100)
# ==========================================================================
smtp      inet  n       -       n       -       -       smtpd
#submission inet n       -       n       -       -       smtpd
#  -o smtpd_tls_security_level=encrypt
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#smtps     inet  n       -       n       -       -       smtpd
#  -o smtpd_tls_wrappermode=yes
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#628      inet  n       -       n       -       -       qmqpd
pickup    fifo  n       -       n       60      1       pickup
cleanup   unix  n       -       n       -       0       cleanup
qmgr      fifo  n       -       n       300     1       qmgr
#qmgr     fifo  n       -       n       300     1       oqmgr
tlsmgr    unix  -       -       n       1000?   1       tlsmgr
rewrite   unix  -       -       n       -       -       trivial-rewrite
bounce    unix  -       -       n       -       0       bounce
defer     unix  -       -       n       -       0       bounce
trace     unix  -       -       n       -       0       bounce
verify    unix  -       -       n       -       1       verify
flush     unix  n       -       n       1000?   0       flush
proxymap  unix  -       -       n       -       -       proxymap
proxywrite unix -       -       n       -       1       proxymap
smtp      unix  -       -       n       -       -       smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay     unix  -       -       n       -       -       smtp
<------>-o smtp_fallback_relay=
#       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq     unix  n       -       n       -       -       showq
error     unix  -       -       n       -       -       error
retry     unix  -       -       n       -       -       error
discard   unix  -       -       n       -       -       discard
local     unix  -       n       n       -       -       local
virtual   unix  -       n       n       -       -       virtual
lmtp      unix  -       -       n       -       -       lmtp
anvil     unix  -       -       n       -       1       anvil
scache    unix  -       -       n       -       1       scache
dovecot    unix    -    n    n    -    -    pipe
             flags=DRhu user=vmail:mail argv=/usr/libexec/dovecot/deliver -d $(recipient)
scan unix - - n - 16 smtp -o smtp_send_xforward_command=yes
127.0.0.1:10026 inet n - n - 16 smtpd
             -o content_filter=
             -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
             -o smtpd_helo_restrictions=
             -o smtpd_client_restrictions=
             -o smtpd_sender_restrictions=
             -o smtpd_recipient_restrictions=permit_mynetworks,reject
             -o mynetworks_style=host
             -o smtpd_authorized_xforward_hosts=127.0.0.0/8
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent.  See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ====================================================================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
#maildrop  unix  -       n       n       -       -       pipe
#  flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}
#
# ====================================================================
#
# The Cyrus deliver program has changed incompatibly, multiple times.
#
#old-cyrus unix  -       n       n       -       -       pipe
#  flags=R user=cyrus argv=/usr/lib/cyrus-imapd/deliver -e -m ${extension} ${user}
#
# ====================================================================
#
# Cyrus 2.1.5 (Amos Gouaux)
# Also specify in main.cf: cyrus_destination_recipient_limit=1
#
#cyrus     unix  -       n       n       -       -       pipe
#  user=cyrus argv=/usr/lib/cyrus-imapd/deliver -e -r ${sender} -m ${extension} ${user}
#
# ====================================================================
#
# See the Postfix UUCP_README file for configuration details.
#
#uucp      unix  -       n       n       -       -       pipe
#  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# ====================================================================
#
# Other external delivery methods.
#
#ifmail    unix  -       n       n       -       -       pipe
#  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
#
#bsmtp     unix  -       n       n       -       -       pipe
#  flags=Fq. user=bsmtp argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient
#
#scalemail-backend unix -       n       n       -       2       pipe
#  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store
#  ${nexthop} ${user} ${extension}
#
#mailman   unix  -       n       n       -       -       pipe
#  flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
#  ${nexthop} ${user}

yum install telnet
yum install telnet-server

telnet 127.0.0.1 110
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused

telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
Connection closed by foreign host.

grep -E -e 'warning|critical|error' /var/log/maillog
Aug  5 11:30:50 mx postfix/smtpd[3814]: warning: 127.0.0.1: hostname localhost verification failed: Name or service not known
Aug  5 11:30:50 mx postfix/smtpd[3814]: warning: SASL: Connect to /var/spool/postfix/private/dovecot-auth failed: No such file or directory
Aug  5 11:30:51 mx postfix/master[2225]: warning: process /usr/libexec/postfix/smtpd pid 3814 exit status 1
Aug  5 11:30:51 mx postfix/master[2225]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling

[root@mx /]# service dovecot start
Запускается Dovecot Imap: doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf line 1: Expecting '='
                                                           [СБОЙ ]

S: Linux 2.6.32-220.7.1.el6.i686 i686 CentOS release 6.2 (Final) ext4
auth_debug = yes
auth_debug_passwords = yes
auth_mechanisms = plain login cram-md5
auth_verbose = yes
base_dir = /var/run/dovecot/
disable_plaintext_auth = no
ssl = no
first_valid_uid = 1150
last_valid_uid = 1150
log_timestamp = %Y-%m-%d %H:%M:%S
mail_debug = yes
mail_location = maildir:/var/vmail/%d/%u
passdb {
args = /etc/dovecot-sql.conf
driver = sql
}
protocols = imap pop3
service auth {
unix_listener /var/spool/postfix/private/dovecot-auth {
user = postfix
group = postfix
mode = 0660
}
unix_listener auth-master {
user = vmail
group = mail
mode = 0660
}
unix_listener auth-userdb {
user = vmail
group = mail
mode = 0660
}
#user=root
}
service imap-login {
executable = /usr/libexec/dovecot/imap-login
inet_listener imap {
address = *
port = 143
}
}
service imap {
executable = /usr/libexec/dovecot/imap
}
service pop3-login {
executable = /usr/libexec/dovecot/pop3-login
inet_listener pop3 {
address = *
port = 110
}
}
service pop3 {
executable = /usr/libexec/dovecot/pop3
}
userdb {
args = /etc/dovecot-sql.conf
driver = sql
}.

driver = mysql
connect = host=localhost dbname=mail user=postfix password=password
default_pass_scheme = MD5
user_query = SELECT '/var/vmail/%d/%n' as home, 'maildir:/var/vmail/%d/%n'as mail, 1150 AS uid, 12 AS gid, concat('dirsize:storage=', quota) AS quota FROM mailbox WHERE username = '
password_query = SELECT username as user, password, '/var/vmail/%d/%n' as userdb_home, 'maildir:/var/vmail/%d/%n' as userdb_mail, 1150 as userdb_uid, 12 asuserdb_gid FROM mailbox WH

ssl = no

ssl_cert = </etc/httpd/ssl/com.crt
ssl_key = </etc/httpd/ssl/com.key

[05-Aug-2013 17:05:41 +0400]: IMAP Error: Login failed for admin@mydomain.com from 192.168.0.77. Could not connect to mydomain.com:143: php_network_getaddresses: getaddrinfo failed: С именем хоста не связано ни одного адреса in /var/www/html/roundcube/program/include/rcube_imap.php on line 205 (POST /webmail/?_task=login&_action=login
[05-Aug-2013 17:10:16 +0400]: IMAP Error: Login failed for new@mydomain.com 192.168.0.77. Could not connect to mydomain.com:143: php_network_getaddresses: getaddrinfo failed: С именем хоста не связано ни одного адреса in /var/www/html/roundcube/program/include/rcube_imap.php on line 205 (POST /webmail/?_task=login&_action=login)
[05-Aug-2013 17:10:21 +0400]: IMAP Error: Login failed for new@mydomain.com from 192.168.0.77. Could not connect to mydomain.com:143: php_network_getaddresses: getaddrinfo failed: С именем хоста не связано ни одного адреса in /var/www/html/roundcube/program/include/rcube_imap.php on line 205 (POST /webmail/?_task=login&_action=login)

[root@mx logs]# telnet 127.0.0.1 143
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN AUTH=CRAM-MD5] Dovecot ready.

telnet: mydomain.com: No address associated with hostname
mydomain: No address associated with name

[06-Aug-2013 12:15:59 +0400]: IMAP Error: Login failed for new@mydomain.com from 192.168.0.77. AUTHENTICATE CRAM-MD5: A0001 NO [AUTHENTICATIONFAILED] Authentication failed. in /var/www/html/roundcube/program/include/rcube_imap.php on line 205 (POST /webmail/?_task=login&_action=login)