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Old 19th June 2013, 22:36
kaos00723 kaos00723 is offline
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Default Dreaded ERROR: Connection dropped by IMAP server

I followed The Perfect Server - CentOS 6.4 x86_64 (Apache2, Dovecot, ISPConfig 3) guide for this.

Here's the mail log:

Code:
Jun 19 15:17:46 littlebrain postfix/master[2087]: warning: process /usr/libexec/postfix/smtpd pid 3574 exit status 1
 Jun 19 15:17:46 littlebrain postfix/master[2087]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
 Jun 19 15:17:56 littlebrain amavis[2301]: (02301-08) (!)rw_loop: leaving rw loop, no progress, last event (select) 35.020 s ago
 Jun 19 15:17:56 littlebrain amavis[2301]: (02301-08) (!)FWD from <fail2ban@example.com> -> <root@littlebrain.technicalassault.com>, 451 4.5.0 From MTA() during fwd-connect (No greeting, dt: 35.020 s): id=02301-08
 Jun 19 15:17:56 littlebrain amavis[2301]: (02301-08) Blocked MTA-BLOCKED {TempFailedInbound}, <fail2ban@example.com> -> <root@littlebrain.technicalassault.com>, Message-ID: <20130617221228.722C9160832@littlebrain.technicalassault.com>, mail_id: EQve8n-qpJYi, Hits: -0.001, size: 436, 45227 ms
 Jun 19 15:17:56 littlebrain postfix/smtp[3519]: 722C9160832: to=<root@littlebrain.technicalassault.com>, orig_to=<root>, relay=127.0.0.1[127.0.0.1]:10024, delay=162328, delays=162262/21/0.01/45, dsn=4.5.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.5.0 id=02301-08 - Temporary MTA failure on relaying, From MTA() during fwd-connect (No greeting, dt: 35.020 s): id=02301-08 (in reply to end of DATA command))
 Jun 19 15:17:59 littlebrain dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=3423, input bytes=0
 Jun 19 15:18:01 littlebrain dovecot: pop3-login: Disconnected: Inactivity (no auth attempts): rip=::1, lip=::1, secured
 Jun 19 15:18:11 littlebrain postfix/smtpd[3596]: connect from unknown[127.0.0.1]
 Jun 19 15:18:21 littlebrain postfix/smtpd[3596]: fatal: no SASL authentication mechanisms
 Jun 19 15:18:22 littlebrain postfix/master[2087]: warning: process /usr/libexec/postfix/smtpd pid 3596 exit status 1
 Jun 19 15:18:22 littlebrain postfix/master[2087]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
 Jun 19 15:18:29 littlebrain dovecot: auth: Error: Can't open configuration file /etc/dovecot-sql.conf: No such file or directory
 Jun 19 15:18:29 littlebrain dovecot: log: Error: service(auth): child 3707 returned error 89 (Fatal failure)
 Jun 19 15:18:29 littlebrain dovecot: master: Error: service(auth): command startup failed, throttling
 Jun 19 15:19:42 littlebrain dovecot: auth: Error: Can't open configuration file /etc/dovecot-sql.conf: No such file or directory
 Jun 19 15:19:42 littlebrain dovecot: log: Error: service(auth): child 3735 returned error 89 (Fatal failure)
 Jun 19 15:19:42 littlebrain dovecot: master: Error: service(auth): command startup failed, throttling
 Jun 19 15:20:02 littlebrain dovecot: imap-login: Disconnected (no auth attempts): rip=::1, lip=::1, secured
 Jun 19 15:20:02 littlebrain postfix/smtpd[3781]: connect from localhost[::1]
 Jun 19 15:20:12 littlebrain postfix/smtpd[3781]: fatal: no SASL authentication mechanisms
 Jun 19 15:20:12 littlebrain dovecot: imap-login: Disconnected (no auth attempts): rip=::1, lip=::1, secured
 Jun 19 15:20:13 littlebrain postfix/master[2087]: warning: process /usr/libexec/postfix/smtpd pid 3781 exit status 1
 Jun 19 15:20:13 littlebrain postfix/master[2087]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
 Jun 19 15:20:19 littlebrain postfix/postfix-script[3816]: stopping the Postfix mail system
 Jun 19 15:20:19 littlebrain postfix/master[2087]: terminating on signal 15
 Jun 19 15:20:20 littlebrain postfix/postfix-script[3888]: starting the Postfix mail system
 Jun 19 15:20:20 littlebrain postfix/master[3889]: daemon started -- version 2.6.6, configuration /etc/postfix
 Jun 19 15:20:20 littlebrain postfix/qmgr[3892]: D1C741609E3: from=<fail2ban@example.com>, size=438, nrcpt=1 (queue active)
 Jun 19 15:20:20 littlebrain postfix/qmgr[3892]: E529E160A0C: from=<fail2ban@example.com>, size=438, nrcpt=1 (queue active)
 Jun 19 15:20:20 littlebrain postfix/qmgr[3892]: 6B5D1160963: from=<root@littlebrain.technicalassault.com>, size=2185, nrcpt=1 (queue active)
 Jun 19 15:20:20 littlebrain postfix/qmgr[3892]: 62F081607E1: from=<fail2ban@example.com>, size=425, nrcpt=1 (queue active)
 Jun 19 15:20:30 littlebrain postfix/smtpd[3921]: connect from unknown[127.0.0.1]
 Jun 19 15:20:30 littlebrain postfix/smtpd[3924]: connect from unknown[127.0.0.1]
 Jun 19 15:20:32 littlebrain dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=3780, input bytes=0
 Jun 19 15:20:40 littlebrain postfix/smtpd[3921]: fatal: no SASL authentication mechanisms
 Jun 19 15:20:40 littlebrain postfix/smtpd[3924]: fatal: no SASL authentication mechanisms
 Jun 19 15:20:41 littlebrain postfix/master[3889]: warning: process /usr/libexec/postfix/smtpd pid 3921 exit status 1
 Jun 19 15:20:41 littlebrain postfix/master[3889]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
 Jun 19 15:20:41 littlebrain amavis[2302]: (02302-08) (!)FWD from <fail2ban@example.com> -> <root@littlebrain.technicalassault.com>, 451 4.5.0 From MTA() during fwd-connect (No greeting, dt: 11.034 s): id=02302-08
 Jun 19 15:20:41 littlebrain amavis[2302]: (02302-08) Blocked MTA-BLOCKED {TempFailedInbound}, <fail2ban@example.com> -> <root@littlebrain.technicalassault.com>, Message-ID: <20130618191711.D1C741609E3@littlebrain.technicalassault.com>, mail_id: VtelEx3evSHL, Hits: -0.001, size: 436, 21247 ms
 Jun 19 15:20:41 littlebrain postfix/master[3889]: warning: process /usr/libexec/postfix/smtpd pid 3924 exit status 1
 Jun 19 15:20:41 littlebrain amavis[2301]: (02301-09) (!)FWD from <fail2ban@example.com> -> <root@littlebrain.technicalassault.com>, 451 4.5.0 From MTA() during fwd-connect (No greeting, dt: 11.030 s): id=02301-09
 Jun 19 15:20:41 littlebrain amavis[2301]: (02301-09) Blocked MTA-BLOCKED {TempFailedInbound}, <fail2ban@example.com> -> <root@littlebrain.technicalassault.com>, Message-ID: <20130619185651.E529E160A0C@littlebrain.technicalassault.com>, mail_id: R3gjehXMdY7s, Hits: -0.001, size: 436, 21255 ms
 Jun 19 15:20:41 littlebrain postfix/smtp[3893]: D1C741609E3: to=<root@littlebrain.technicalassault.com>, orig_to=<root>, relay=127.0.0.1[127.0.0.1]:10024, delay=86610, delays=86589/0.01/0/21, dsn=4.5.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.5.0 id=02302-08 - Temporary MTA failure on relaying, From MTA() during fwd-connect (No greeting, dt: 11.034 s): id=02302-08 (in reply to end of DATA command))
 Jun 19 15:20:41 littlebrain postfix/smtp[3894]: E529E160A0C: to=<root@littlebrain.technicalassault.com>, orig_to=<root>, relay=127.0.0.1[127.0.0.1]:10024, delay=1430, delays=1409/0.02/0/21, dsn=4.5.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.5.0 id=02301-09 - Temporary MTA failure on relaying, From MTA() during fwd-connect (No greeting, dt: 11.030 s): id=02301-09 (in reply to end of DATA command))
 Jun 19 15:20:42 littlebrain dovecot: auth: Error: Can't open configuration file /etc/dovecot-sql.conf: No such file or directory
 Jun 19 15:20:42 littlebrain dovecot: master: Error: service(auth): command startup failed, throttling
 Jun 19 15:20:42 littlebrain dovecot: log: Error: service(auth): child 3933 returned error 89 (Fatal failure)
 Jun 19 15:21:12 littlebrain dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=3780, input bytes=0
 Jun 19 15:21:15 littlebrain dovecot: imap-login: Error: Timeout waiting for handshake from auth server. my pid=3925, input bytes=0
 Jun 19 15:21:26 littlebrain amavis[2301]: (02301-10) (!)rw_loop: leaving rw loop, no progress, last event (select) 35.035 s ago
 Jun 19 15:21:26 littlebrain amavis[2301]: (02301-10) (!)FWD from <fail2ban@example.com> -> <root@littlebrain.technicalassault.com>, 451 4.5.0 From MTA() during fwd-connect (No greeting, dt: 35.036 s): id=02301-10
 Jun 19 15:21:27 littlebrain amavis[2301]: (02301-10) Blocked MTA-BLOCKED {TempFailedInbound}, <fail2ban@example.com> -> <root@littlebrain.technicalassault.com>, Message-ID: <20130618191558.62F081607E1@littlebrain.technicalassault.com>, mail_id: M584egy3JWJv, Hits: -0.001, size: 423, 45253 ms
 Jun 19 15:21:27 littlebrain postfix/smtp[3894]: 62F081607E1: to=<root@littlebrain.technicalassault.com>, orig_to=<root>, relay=127.0.0.1[127.0.0.1]:10024, delay=86729, delays=86662/21/0/45, dsn=4.5.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.5.0 id=02301-10 - Temporary MTA failure on relaying, From MTA() during fwd-connect (No greeting, dt: 35.036 s): id=02301-10 (in reply to end of DATA command))
 Jun 19 15:21:39 littlebrain amavis[2302]: (02302-09) (!)rw_loop: leaving rw loop, no progress, last event (select) 35.035 s ago
 Jun 19 15:21:39 littlebrain amavis[2302]: (02302-09) (!)FWD from <root@littlebrain.technicalassault.com> -> <root@localhost.technicalassault.com>, 451 4.5.0 From MTA() during fwd-connect (No greeting, dt: 35.036 s): id=02302-09
 Jun 19 15:21:39 littlebrain amavis[2302]: (02302-09) Blocked MTA-BLOCKED {TempFailedOpenRelay}, <root@littlebrain.technicalassault.com> -> <root@localhost.technicalassault.com>, Message-ID: <20130615071639.6B5D1160963@littlebrain.technicalassault.com>, mail_id: zpYW5FpPv6Nh, Hits: 0, size: 2184, 57340 ms
 Jun 19 15:21:39 littlebrain postfix/smtp[3893]: 6B5D1160963: to=<root@localhost.technicalassault.com>, orig_to=<root@localhost>, relay=127.0.0.1[127.0.0.1]:10024, delay=389100, delays=389021/21/0.01/57, dsn=4.5.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.5.0 id=02302-09 - Temporary MTA failure on relaying, From MTA() during fwd-connect (No greeting, dt: 35.036 s): id=02302-09 (in reply to end of DATA command))
 Jun 19 15:21:41 littlebrain postfix/smtpd[4007]: connect from unknown[127.0.0.1]
 Jun 19 15:21:41 littlebrain postfix/smtpd[4009]: connect from unknown[127.0.0.1]
 Jun 19 15:21:42 littlebrain dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=3780, input bytes=0
 Jun 19 15:21:43 littlebrain dovecot: auth: Error: Can't open configuration file /etc/dovecot-sql.conf: No such file or directory
 Jun 19 15:21:43 littlebrain dovecot: log: Error: service(auth): child 4010 returned error 89 (Fatal failure)
 Jun 19 15:21:43 littlebrain dovecot: master: Error: service(auth): command startup failed, throttling
 Jun 19 15:21:43 littlebrain postfix/smtpd[4007]: fatal: no SASL authentication mechanisms
 Jun 19 15:21:43 littlebrain postfix/smtpd[4009]: fatal: no SASL authentication mechanisms
 Jun 19 15:21:44 littlebrain postfix/master[3889]: warning: process /usr/libexec/postfix/smtpd pid 4009 exit status 1
 Jun 19 15:21:44 littlebrain postfix/master[3889]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
 Jun 19 15:21:44 littlebrain postfix/master[3889]: warning: process /usr/libexec/postfix/smtpd pid 4007 exit status 1
 Jun 19 15:22:10 littlebrain dovecot: imap-login: Disconnected (no auth attempts): rip=::1, lip=::1, secured
 Jun 19 15:22:17 littlebrain dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=3780, input bytes=0
 Jun 19 15:22:43 littlebrain dovecot: auth: Error: Can't open configuration file /etc/dovecot-sql.conf: No such file or directory
 Jun 19 15:22:43 littlebrain dovecot: master: Error: service(auth): command startup failed, throttling
 Jun 19 15:22:43 littlebrain dovecot: log: Error: service(auth): child 4035 returned error 89 (Fatal failure)
 Jun 19 15:23:02 littlebrain dovecot: pop3-login: Disconnected: Inactivity (no auth attempts): rip=::1, lip=::1, secured
 Jun 19 15:23:13 littlebrain dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=4030, input bytes=0
 Jun 19 15:23:13 littlebrain dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=4029, input bytes=0
 Jun 19 15:23:23 littlebrain dovecot: master: Warning: Killed with signal 15 (by pid=4079 uid=0 code=kill)
 Jun 19 15:23:24 littlebrain dovecot: pop3-login: Error: auth: connect(login) failed: Connection refused
 Jun 19 15:23:24 littlebrain dovecot: pop3-login: Error: auth: connect(login) failed: Connection refused
 Jun 19 15:23:24 littlebrain dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled)
 Jun 19 15:23:36 littlebrain dovecot: auth: Error: Can't open configuration file /etc/dovecot-sql.conf: No such file or directory
 Jun 19 15:23:36 littlebrain dovecot: log: Error: service(auth): child 4099 returned error 89 (Fatal failure)
 Jun 19 15:23:36 littlebrain dovecot: master: Error: service(auth): command startup failed, throttling
 Jun 19 15:23:53 littlebrain dovecot: pop3-login: Disconnected: Shutting down (no auth attempts): rip=75.99.188.10, lip=192.168.1.100
 Jun 19 15:23:53 littlebrain dovecot: pop3-login: Disconnected: Shutting down (no auth attempts): rip=75.99.188.10, lip=192.168.1.100
 Jun 19 15:23:56 littlebrain postfix/smtpd[4096]: warning: 75.99.188.10: hostname ool-4b63bc0a.static.optonline.net verification failed: Name or service not known
 Jun 19 15:23:56 littlebrain postfix/smtpd[4096]: connect from unknown[75.99.188.10]
 Jun 19 15:24:06 littlebrain postfix/smtpd[4096]: fatal: no SASL authentication mechanisms
 Jun 19 15:24:07 littlebrain postfix/master[3889]: warning: process /usr/libexec/postfix/smtpd pid 4096 exit status 1
 Jun 19 15:24:07 littlebrain postfix/master[3889]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
 Jun 19 15:24:11 littlebrain dovecot: imap-login: Error: Timeout waiting for handshake from auth server. my pid=4098, input bytes=0
 Jun 19 15:24:36 littlebrain dovecot: auth: Error: Can't open configuration file /etc/dovecot-sql.conf: No such file or directory
 Jun 19 15:24:36 littlebrain dovecot: log: Error: service(auth): child 4120 returned error 89 (Fatal failure)
 Jun 19 15:24:36 littlebrain dovecot: master: Error: service(auth): command startup failed, throttling
 Jun 19 15:24:47 littlebrain postfix/scache[3929]: statistics: start interval Jun 19 15:20:41
 Jun 19 15:24:47 littlebrain postfix/scache[3929]: statistics: domain lookup hits=0 miss=2 success=0%
 Jun 19 15:24:47 littlebrain postfix/scache[3929]: statistics: address lookup hits=0 miss=2 success=0%
 Jun 19 15:24:47 littlebrain postfix/scache[3929]: statistics: max simultaneous domains=1 addresses=1 connection=1
Please, please, please help me figure out what the problem is. It's driving me crazy.

Thank you!
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